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Nominal Response Library

In 2006, the IRIS DMC began to collect an "authoritative" set of manufacturers' recommended nominal instrument responses in SEED RESP format and publish these on the web. The goal behind the Library is to make it easier for the seismological community to both share and create metadata for common instrumentation, and to improve response accuracy for users of the data. All links to responses are queries to the NRL web service.

To cite the the IRIS Nominal Response Library, please use - Mary E. Templeton (2017): IRIS Library of Nominal Response for Seismic Instruments.
Incorporated Research Institutions for Seismology. Dataset. https://doi.org/10.17611/S7159Q

Download the full Library as RESP or StationXML files.



datalogger

Below is some manufacturer-specific information to help you locate your instrument response.

DAQ Systems

DAQ Systems is the vendor for NetDAS dataloggers.

DTCC

DTCC is the manufacturer of SmartSolo nodal seismographs.

Eentec

Eentec was formerly Sprengnether.

EQMet

EQMet was formerly Metrozet and is now a Kinemetrics brand.

  • Agecodagis
  • CNSN
  • DAQSystems

    Below is some model-specific information to help you locate your instrument response. DAQ Systems have are four models: the 4, 4CH and 5V versions of the DAQ24USB use the CS5532 ADC chip, and the XR uses the ADS1255 chip.
    FIR filters are the same for dataloggers using the CS5532 chip, but sensitivities vary.
    The 4CH and 5V dataloggers have a Low and High sensitivity mode. Sensitivities are as follows: - 4.194310^5 Counts/V for the DAQ24USB-4, and the DAQ24USB-4CH and DAQ24USB5V at Low sensitivity - 2.79620310^6 Counts/V for the DAQ24USB-4CH at High sensitivity - 2.843596*10^6 Counts/V for the DAQ24USB-5V at High sensitivity

    The XR has different sample rates and uses different FIR filters that dataloggers using the CS5532 chip.

    DAQ24USB-4

    This model uses the CS5532 ADC chip and has the same FIR filter response as the DAQ24USB-4CH and DAQ24USB-5V dataloggers. Its ADC scale factor is 4.1943e+5 counts/V.

    DAQ24USB-4CH

    This model uses the CS5532 ADC chip and has the same FIR filter response as the DAQ24USB-4 and DAQ24USB-5V dataloggers. Its ADC scale factor is 4.1943e+5 counts/V when recording at Low sensitivity and 2.796203e+6 counts/V at High sensitivity.

    DAQ24USB-5V

    This model uses the CS5532 ADC chip and has the same FIR filter response as the DAQ24USB-4 and DAQ24USB-4CH dataloggers. Its ADC scale factor is 4.1943e+5 counts/V when recording at Low sensitivity and 2.843596e+6 counts/V at High sensitivity.

    DAQ24USB-XR

    This model uses the ADS1255 ADC chip, giving it a different response from models using the CS5532 chip. It also had different sample rates available.

  • DiGOSOmnirecs
  • DTCC
  • EarthData
  • Eentec
  • EQMet

    Below is some model-specific information to help you locate your instrument response.

    SMA

    The EQMet SMA is the datalogger component of the TSA-SMA digital accelerometer.

  • GenericUnity
  • GEObit

    Below is some configuration-specific information to help you locate your instrument response.

    GEO-A200 Datalogger

    These GEO-A200 datalogger responses describe the digitization of signal from the GEO-A200 digital accelerometer. They should always be paired with an appropriate GEO-A200 sensor response.

  • GeoDevice
  • GeoSIG
  • Geotech
  • Guralp

    Below is some model-specific information to help you locate your instrument response.

    Certimus

    Certimus dataloggers supply instrument responses to the user that are customized to each individual datalogger. Because this is preferable to using a nominal response, Certimus datalogger responses are not included in the Nominal Response Library

    CMG-6TD

    Nominal responses given here are valid for the CMG-6TD beginning in 2005.

    CMG-CD24

    These responses describe the standalone version of the CMG-CD24 datalogger. CD24s that are integrated sensor-digitizer packages have different ADC sensitivities. To describe an integrated CD24, use the responses for the standalone, but edit the ADC sensitivity according to th ecalibration sheet that accompanied your instrument.

    CMG-DM24-Mk1

    The Mk1 was manufactured using a Crystal CS5322 chip and has a firmware version beginning with "V.0", but is less than V.090. Because they use th esam chip, Mk1 dataloggers have the same FIR filter cascade and tap table lookups as the Mk2 dataloggers. Their ADC sensitivity matches that of the Mk2 wired for single-ended output

    CMG-DM24-Mk2-SE

    The Mk2 was manufactured using a Crystal CS5322 chip and has a firmware version greater than V.090. The Mk2 wired for single-ended output (SE) has a bit weight of 1.27 microV/count.

    CMG-DM24-Mk2-DF

    The Mk2 was manufactured using a Crystal CS5322 chip before 2004 and has a firmware version greater than V.090. The Mk2 wired for differential output (DF) has a bit weight of 3.2-3.5 microV/count. Responses in the NRL use a nominal value of 3.2 microV/count (or a scale factor of 3.125e+5 couts/V).

    CMG-DM24-Mk3-Fixed

    The Mk3 was manufactured using a Crystal CS5376 chip from 2004 on. It is made with either a fixed or variable preamp gain. The fixed gain version has a bit weight of 3.2 microV/count.

    CMG-DM24-Mk3-Variable

    The Mk3 was manufactured using a Crystal CS5376 chip from 2004 on. It is made with either a fixed or variable preamp gain. The variable gain version has a bit weight of 2.84 microV/count.

    Fortimus

    Fortimus dataloggers supply instrument responses to the user that are customized to each individual datalogger. Because this is preferable to using a nominal response, Fortimus datalogger responses are not included in the Nominal Response Library.

    Minimus

    Minimus datalogger supply instrumen tresponses to the user that are customized to each individual datalogger. Because this is preferable to using a nominal response, Minimus datalogger responses are not included in the Nominal Response Library.

  • Kinemetrics

    Below is some model-specific information to help you locate your instrument response.

    Basalt

    The Basalt has the same response as the Dolomite, Granite and Obsidian dataloggers, but differs in its available sample rates. It offers 1, 10, 50, 100, 200, 250, 1000 and 2000 Hz sample rates.

    Dolomite

    The Dolomite has the same response as the Basalt, Granite and Obsidian dataloggers, but differs in its available sample rates. It offers 1, 10, 50, 100, 200, 250 and 1000 Hz sample rates.

    Granite

    The Granite has the same response as the Basalt, Dolomite and Obsidian dataloggers, but differs in its available sample rates. It offers 1, 10, 20, 50, 100, 200, 250 and 1000 Hz sample rates.

    K2

    The K2 and Mt. Whitney dataloggers have the same responses and default A/D scale factors. The responses listed here are for the default scale factor of 3.36e+06 counts/V. The K2 can optionally be ordered with a scale factor of 2.4e+05.

    MtWhitney

    The K2 and MtWhitney dataloggers have tthe same responses and default A/D scale factors.

    Obsidian

    The Obsidian has the same response as the Basalt, Dolomite and Granite dataloggers, but differs in its available sample rates. It offers 1, 10, 50, 100, 200, 250, 1000, 2000 and 5000 Hz sample rates.

  • Lunitek

    Below is some model-specific information to help you locate your instrument response.

    Sentinel-rev1

    The Sentinel (revision 1) datalogger has two built-in sensors: a MEMS accelerometer and a 4.5 Hz geophone. Responses for these sensors are included in the NRL under Lunitek Sentinel sensors. The Sentinel offers a choice of 2.048 or 1.024 Vpp full scale range for the geophone.

  • MagseisFairfield

    Below is some model-specific information to help you locate your instrument response.

    ZlandGen2

    Responses listed here describe the generation 2 Zland Node datalogger.

  • Nanometrics

    Below is some model-specific information to help you locate your instrument response.

    Centaur

    Centaur digitizer technology is used within the Centaur standalone dataloggers, as well as all-in-one instruments such as the TitanSMA, TitanEA, MeridianCompact and MeridianPosthole. They use the same FIR filters, but offer different input (full-scale) voltage range options.

    CentaurHighGain

    The High Gain Centaur models have gains 4 times that of standard Centaur models. This is not reflected in the Centaur's user interface, so the operator needs to be aware that when selecting for example 40Vpp range, the High-Gain Centaur is really operating with a 10Vpp range. Centaur digitizer technology is used within the Centaur standalone dataloggers, as well as all-in-one instruments such as the TitanSMA, TitanEA, MeridianCompact and MeridianPosthole. They use the same FIR filters, but offer different input (full-scale) voltage range options.

    EuropaT

    The Taurus, Trident 305, Trident and EuropaT standalone dataloggers have identical responses with identically configured parameters. The Taurus and Trident 305 have selectable low (43.07 kohms) and high (9.4 Mohms) impedance options, but the Trident and EuropaT have a constant 43.07 kohm (low) input impedance.

    HRD-24

    The HRD-24 standalone datalogger has identical responses and parameters as the Orion.

    MeridianCompact

    Centaur digitizer technology is used within the Centaur standalone dataloggers, as well as all-in-one instruments such as the TitanSMA, TitanEA, MeridianCompact and MeridianPosthole. They use the same FIR filters, but offer different input (full-scale) voltage range options.

    MeridianPosthole

    Centaur digitizer technology is used within the Centaur standalone dataloggers, as well as all-in-one instruments such as the TitanSMA, TitanEA, MeridianCompact and MeridianPosthole. They use the same FIR filters, but offer different input (full-scale) voltage range options.

    Orion

    The Orion standalone datalogger has identical responses and parameters as the HRD-24.

    Taurus

    The Taurus, Trident 305, Trident and EuropaT standalone dataloggers have identical responses with identically configured parameters. The Taurus and Trident 305 have selectable low (43.07 kohms) and high (9.4 Mohms) impedance options, but the Trident and EuropaT have a constant 43.07 kohm (low) input impedance.

    TitanEA

    The dataloggers in the Titan SMA and Titan EA digital accelerometers are Centaur dataloggers with a single preamp gain choice of 1 (40 Vpp). The user may select the maximum full scale measurement range of +/-4g, +/-2g, +/-1g, +/0.5g +/-0.25g or +/-0.125g. This is applied to the internal Titan sensor, and so the Titan sensor response corresponding to the selected clip level should be used in conjunction with one of the digitizer responses below.

    TitanSMA

    The dataloggers in the Titan SMA and Titan EA digital accelerometers are Centaur dataloggers with a single preamp gain choice of 1 (40 Vpp). The user may select the maximum full scale measurement range of +/-4g, +/-2g, +/-1g, +/0.5g +/-0.25g or +/-0.125g. This is applied to the internal Titan sensor, and so the Titan sensor response corresponding to the selected clip level should be used in conjunction with one of the digitizer responses below.

    Trident

    The Taurus, Trident 305, Trident and EuropaT standalone dataloggers have identical responses with identically configured parameters. The Taurus and Trident 305 have selectable low (43.07 kohms) and high (9.4 Mohms) impedance options, but the Trident and EuropaT have a constant 43.07 kohm (low) input impedance.

    Trident305

    The Taurus, Trident 305, Trident and EuropaT standalone dataloggers have identical responses with identically configured parameters. The Taurus and Trident 305 have selectable low (43.07 kohms) and high (9.4 Mohms) impedance options, but the Trident and EuropaT have a constant 43.07 kohm (low) input impedance.

  • Quanterra

    Below is some model-specific information to help you locate your instrument response.

    Q330SR

    The Q330 Standard Resolution datalogger has three or six channels recorded by a standard resolution (SR) ADC. Its preamp offers gains of 1 or 30.

    Q330HR

    The Q330 High Resolution datalogger has two sensor ports (QAPs) that are sampled by different ADCs. Port A (channels 1-3) is sampled by a high-resolution (HR) ADC with four times the number of counts/volt as the Q330SR (standard resolution) ADC. Port B (channels 4-6) is sampled by a standard resolution (SR) ADC identical to the ADC in the Q330SR with the same responses. The Q330HR preamp offers gains of 1 or 20.

    Q330HRS

    The Q330 Ultra High Resolution datalogger has six channels recorded by a high resolution ADC identical to the high resolution (HR) ADC in the Q330HR with the same responses. Its preamp offers gains of 1 or 20.

    Q380

    The x80 series dataloggers are named by the number of channels available (e.g. 380, 680) and share the same responses.

    Q4120

    The 4120 series dataloggers are named by the number of channels available (e.g. 4123, 4126) and share the same responses.

    Q680

    The x80 series dataloggers are named by the number of channels available (e.g. 380, 680) and share the same responses.

    QEP

    The Quanterra Environmental Processor has three channels. Frank Vernon furnished the response information for this datalogger.

  • RaspberryShake

    Responses for all other Raspberry Shake, S.A. products can be found at manual.raspberryshake.org

    RaspberryShake1D

    This is the datalogger component of the Raspberry Shake 1D integrated seismograph. It is integrated with the Raspberry Shake 1D Racotech 5 Hz velocity sensor. The ADC stage gain describes the total sensitivity of the composite system.

  • REFTEK

    Below is some model-specific information to help you locate your instrument response.

    125

    The 125 "Texan" is a 3-channel fix-gain datalogger intended to be paired with a passive sensor.

    125A

    The 125A "Texan" is a 3-channel variable-gain datalogger intended to be paired with a passive sensor.

    130-01

    The 130-01 is a 24-bit datalogger.

    130-SMA

    The 130-SMA is an accelerograph with a 130-01 datalogger and a 131A accelerometer.

    130S-01

    The 130S-01 is a 24-bit datalogger.

    130S-SMHR

    The 130S-SMHR is an accelerograph with a 130S-01 datalogger and a 147 accelerometer.

    72A06

    The 72A06 is a 16-bit datalogger.

    72A07

    The 72A07 is a 24-bit datalogger.

    72A08

    The 72A08 is a 6-channel datalogger with several versions. Some had a 24-bit ADC on all channels and other had a 16-bit ADC on channels 1-3. Since the responses and configuration parameter differ according to ADC type, responses have been grouped into submodels 72A08__16bit and 72A08__24bit

  • RSensors
  • SeismicSource

    Below is some model-specific information to help you locate your instrument response. The DAQ3-3, Sigma 3 and Sigma 4 datalogger models all use the TI ADS1282 Analog-To-Digital Converter and have the same responses. Each offers preamp gain options of x1 and x16, but digitized values are scaled by the inverse of this setting (and also scaled to output units of Volts) before samples exit the datalogger. Both preamp gain choices are listed below for clarity, but the instrument response does not vary based on preamp gain choice.

  • SeismologyResearchCentre
  • Sercel
  • SolGeo

    Below is some model-specific information to help you locate your instrument response.

    DYMAS24

    The DYMAS24 has a FIR stage immediately following the A/D stage for which coefficients are unavailable but the delay is known and its correction applied to the data. This delay is is is documented in ADC stage.

  • WorldSensing
  • integrated

    Below is some manufacturer-specific information to help you locate your instrument response.

    • Gem
    • TDG

      Below is some model-specific information to help you locate your instrument response.

      e-QUAKENOVA

      This integrated accelerograph is comprised of a 15g accelerometer that is digitized using frequency modulation directly into counts without being translated into Volts in the process. Its initial sample rate is then decimated to obtain the final sample rate. At the time these responses were published, the FIR delays are not subtracted from the data time stamp (i.e the applied correction is 0).

    • sensor

      Below is some manufacturer-specific information to help you locate your instrument response.

      DTCC

      DTCC is the manufacturer of SmartSolo nodal seismographs.

      Eentec

      Eentec was formerly Sprengnether.

      GeoSpace

      GeoSpace was previously OYO Geospace.

      HGS Products

      Sensor Nederland is a former subsidiary of HGS Products.

      Magseis Fairfield

      Magseis Fairfield was previously Fairfield Nodal.

      R-Sensors

      R-Sensors are the manufacturer of CME sensors.

      Raspberry Shake

      Raspberry Shake sensors were previously listed as OSOP.

      Sercel

      Mark Products is now part of Sercel.

      • CEADASE

        Below is some model-specific information to help you locate your instrument response.

        CPHM-500

        This horizontal-component sensor measures ground velocity. It has the same response as the CPZM-500.

        CPZM-500

        This vertical-component sensor measures ground velocity. It has the same response as the CPHM-500.

        LPHA

        This horizontal-component sensor can measure either ground velocity or ground acceleration, depending on the type of feedback electronics board used with it. The poles and zeros for the LPHA differ from those of a vertical-component LPZA using the same board type.

        LPZA

        This vertical-component sensor can measure either ground velocity or ground acceleration, depending on the type of feedback electronics board used with it. The poles and zeros for the LPZA differ from those of a horizontal-component LPHA using the same board type.

        MB3a

        This infrasound sensor measures air pressure.

        MB2000

        This infrasound sensor measures air pressure.

        MB2005

        This infrasound sensor measures air pressure.

      • Chaparral

        Below is some model-specific information to help you locate your instrument response.

        50A

        This infrasound sensor measures air pressure.

        60-UHP

        This infrasound sensor measures air pressure.

        60Vx

        This infrasound sensor measures air pressure.

      • DTCC

        Below is some model-specific information to help you locate your instrument response.

        DT-SOLO

        This geophone measures ground velocity.

      • Eentec

        Below is some model-specific information to help you locate your instrument response.

        SP-400

        This sensor measures ground velocity.

        EP-105

        This sensor measures ground velocity.

        EP-300

        This sensor measures ground velocity.

        EA-120

        This sensor measures ground acceleration. The EA-120 has the same response as the EA-140, but a slightly higher noise level.

        EA-140

        This sensor measures ground acceleration. The EA-140 has the same response as the EA-120, but a slightly lower noise level.

      • EQMet

        Below is some model-specific information to help you locate your instrument response.

        MBB-1

        This sensor measures ground velocity.

        MBB-2

        This sensor measures ground velocity.

        PBB-200S Horizontal

        This sensor measures ground velocity. Poles and zeros differ between horizontal and vertical components

        PBB-200S Vertical

        This sensor measures ground velocity. Poles and zeros differ between horizontal and vertical components

        TSA-100S

        This sensor measures ground acceleration.

        TSA-SMA

        This strong motion accelerometer is the onboard sensor for the TSA-SMA accelerograph. The only response information available for this sensor was the number of poles and zeros, the A0 normalization factor, and sensitivity. The pole values have been adopted from the TSA-100S, the zero was dropped, and the complex conjugate pole pair for the feedback electronics was adjusted to fit the available information. This is the best estimate to the fit the information available, but small differences above 100 Hz can't be ruled out.

      • GaiaCode

        Below is some model-specific information to help you locate your instrument response.

        SIGMA

        This accelerometer measures ground acceleration.

      • GenericUnity

        Below is some model-specific information to help you locate your instrument response.

        UnityAccelerometer

        This response has a flat frequency response and sensitivity of 1 V/m/s**2. It is intended as a stand-in response until the correct response can be determined.

        UnityPolynomialPA

        This polynomial response has a sensitivity of 1 V/Pa within the frequency bounds of 0 to 1 Hz and input amplitudes of -2000 to +2000 Pa. It is intended as a stand-in response for other instruments requiring a polynomial response until the correct response can be determined.

        UnityVelocity

        This response has a flat frequency response and sensitivity of 1 V/m/s. It is intended as a stand-in response until the correct response can be determined.

      • GEObit

        Below is some model-specific information to help you locate your instrument response.

        C100

        This sensor measures ground velocity. It was designed for use with the C100 datalogger.

        GEO-A200

        These GEO-A200 accelerometer responses describe the onboard sensor for the GEO-A200 digital accelerometer. They should always be paired with an appropriate GEO-A200 datalogger responses.

        GEO-FBA200

        These GEO-A200 accelerometer responses describe the onboard sensor for the GEO-A200 digital accelerometer. They should always be paired with an appropriate GEO-A200 datalogger responses.

        GEOtiny

        The onboard geophone and short-period sensors for the GEOtiny digital sensor measure ground velocity.

        GEO-S120

        This sensor measures ground velocity.

        S100

        This sensor measures ground velocity.

        S200

        This sensor measures ground velocity.

        S400

        This sensor measures ground velocity.

        SM1500

        This sensor measures ground acceleration.

      • GeoDevice

        Below is some model-specific information to help you locate your instrument response.

        BBVS

        This sensor measures ground velocity.

      • GeoSIG

        Below is some model-specific information to help you locate your instrument response.

        AC-73

        This sensor measures ground acceleration.

        VE-53

        This short-period sensor measures ground velocity.

        VE-53-BB

        This intermediate-period sensor measures ground velocity.

      • GeoSpace

        Because geophones are passive sensors, nominal responses assume that the sensor is level, the coil and shunt resistances match those listed for the response, and that the preamplifier impedance of the datalogger is at least 2 orders of magnitude greater than the sensor impedance match those listed. To learn how customize these nominal responses for your specific instrumentation, here

        GS-1

        This geophone measures ground velocity.

        GS-OneLF

        This geophone measures ground velocity.

        GS-11D

        This geophone measures ground velocity.

        GS-30CT

        This geophone measures ground velocity.

        HS-1LT

        This geophone measures ground velocity.

        HS-1LTmini

        This geophone measures ground velocity.

        OMNI-2400

        This geophone measures ground velocity.

      • Geotech

        Below is some model-specific information to help you locate your instrument response.

        GS-13

        This sensor measures ground velocity.

        S-13

        This sensor measures ground velocity.

        S-13J

        This sensor measures ground velocity.

        BB-13

        This sensor measures ground velocity.

        KS-2000

        This sensor measures ground velocity. This manually centered model has the same response as the KS-2000M and KS-2000BH.

        KS-2000M

        This sensor measures ground velocity. This motor-centered model has the same response as the KS-2000 and KS-2000BH.

        KS-2000BH

        This sensor measures ground velocity. This borehole model has the same response as the KS-2000 and KS-2000M.

        S-230

        This one-component sensor measures ground acceleration. It has the same response as the PA-23 and PA-23BH

        PA-23

        This three-component surface sensor measures ground acceleration. It has the same response as the S-230 and PA-23BH

        PA-23BH

        This three-component borehole sensor measures ground acceleration. It has the same response as the S-230 and PA-23.

      • Guralp

        Below is some model-specific information to help you locate your instrument response.

        CMG-1T

        This sensor measures ground velocity.

        CMG-3ESP

        This sensor measures ground velocity.

        CMG-3T

        This sensor measures ground velocity.

        CMG-3TB

        This borehole sensor measures ground velocity.

        CMG-3T-5THybridNSN

        This sensor's response has units of ground velocity, although part of its band is flat to acceleration and part is flat to velocity.

        CMG-3v

        This sensor measures ground velocity.

        CMG-6T

        This sensor measures ground velocity.

        CMG-6TF

        This sensor measures ground velocity.

        CMG-40T

        This sensor measures ground velocity.

        CMG-EDU-T

        This sensor measures ground velocity.

        CMG-5T

        This sensor measures ground acceleration.

        CMG-5TC

        This sensor measures ground acceleration.

        Fortis

        This sensor measures ground acceleration.

      • HGSProducts

        Because geophones are passive sensors, nominal responses assume that the sensor is level, the coil and shunt resistances match those listed for the response, and that the preamplifier impedance of the datalogger is at least 2 orders of magnitude greater than the sensor impedance match those listed. To learn how customize these nominal responses for your specific instrumentation, here.

        HG-4

        This geophone measures ground velocity.

        HG-5HS

        This geophone measures ground velocity.

        HG-6

        This geophone measures ground velocity.

        HG-6HS

        This geophone measures ground velocity.

        HG-6HT

        This geophone measures ground velocity.

        HG-6OMNI

        This geophone measures ground velocity.

        HG-7

        This geophone measures ground velocity.

        HG-11

        This geophone measures ground velocity.

        HG-24

        This geophone measures ground velocity.

        HG-24CT

        This geophone measures ground velocity.

        HG-24HS

        This geophone measures ground velocity.

        HG-24SG

        This geophone measures ground velocity.

        HG-25OMNI

        This geophone measures ground velocity.

      • HighTech

        Below is some model-specific information to help you locate your instrument response.

        HTI-96-Min

        This infrasound sensor measures air pressure.

      • Hyperion

        Below is some model-specific information to help you locate your instrument response.

        Hyperion

        This infrasound sensor measures air pressure.

      • IESE

        Because geophones are passive sensors, nominal responses assume that the sensor is level, the coil and shunt resistances match those listed for the response, and that the preamplifier impedance of the datalogger is at least 2 orders of magnitude greater than the sensor impedance match those listed. To learn how customize these nominal responses for your specific instrumentation, here. IESE does not list current damping or shunt resistor information, so responses are given with a calculated shunt resistance that assumes a total damping of 0.7071 critical. Additional parameters needed to customize these responses using the link above are as follows: | Fundamental Frequency | Mass | Open Circuit Dampiong | Intrinsic Sensitivity | | --- | --- | --- | --- | | 4.5 Hz | 0.023 Kg | 0.27 | 78.74 V/M/S | | 2.0 Hz | 0.023 Kg | 0.61 | 78.7 V/M/S |

        G88

        This geophone measures ground velocity. It has the same nominal response as the S21g and S31f with the same resistors.

        S21g

        This geophone measures ground velocity. It has the same nominal response as the G88 and S31f with the same resistors.

        S31f

        This geophone measures ground velocity. It has the same nominal response as the G88 and S21g with the same resistors.

      • iTem

        Below is some model-specific information to help you locate your instrument response.

        prs2500

        This infrasound sensor measures air pressure.

        prs0250

        This infrasound sensor measures air pressure.

        prs0100

        This infrasound sensor measures air pressure.

        prs0025

        This infrasound sensor measures air pressure.

      • JeffreyBJohnson

        Below is some model-specific information to help you locate your instrument response.

        infraBSUv1

        This infrasound sensor measures air pressure.

        infraBSUv2

        This infrasound sensor measures air pressure.

        infraNMT

        This infrasound sensor measures air pressure.

      • Kinemetrics

        Below is some model-specific information to help you locate your instrument response.

        Episensor-ES-T

        This accelerometer measures ground acceleration.

        Episensor-ES-U

        This accelerometer measures ground acceleration.

        Episensor-ES-U2

        This accelerometer measures ground acceleration.

        Episensor-ES-DH

        This accelerometer measures ground acceleration.

        Episensor-SBEPI

        This accelerometer measures ground acceleration.

        Episensor2

        This accelerometer measures ground acceleration.

        FBA11

        This vertical-component accelerometer measures ground acceleration.

        FBA13

        This three-component accelerometer measures ground acceleration.

        FBA23

        This accelerometer measures ground acceleration.

        FBA3

        This accelerometer measures ground acceleration.

        SS1Ranger

        This sensor measures ground velocity.

      • LaHusen

        Below is some model-specific information to help you locate your instrument response.

        VDP-10

        This infrasound sensor measures air pressure.

      • Lennartz

        Below is some model-specific information to help you locate your instrument response.

        LE-3D-Classic

        This sensor measures ground velocity.

        LE-3Dlite-MkII

        This sensor measures ground velocity.

        LE-3Dlite-MkIII

        This sensor measures ground velocity.

        LE-1DV

        This sensor measures ground velocity.

        LE-1DV-MkII

        This sensor measures ground velocity.

        LE-1DV-MkIII

        This sensor measures ground velocity.

        LE-3DBH

        This sensor measures ground velocity.

        LE-3DBH-MKIII

        This sensor measures ground velocity.

        LE-3D-5s

        This sensor measures ground velocity.

        LE-3D-5s-MkIII

        This sensor measures ground velocity.

        LE-3D-20s

        This sensor measures ground velocity.

      • Lunitek

        Below is some model-specific information to help you locate your instrument response.

        LK-307-115

        This accelerometer measures ground acceleration.

        LTME90

        This accelerometer measures ground acceleration.

        LTME100

        This accelerometer measures ground acceleration.

        LTME110

        This accelerometer measures ground acceleration.

        SentinelMEMS

        This accelerometer measures ground acceleration. It is the onboard accelerometer for the Sentinel datalogger.

        SentinelGeophone

        This geophone measures ground velocity. It is the onboard geophone for the Sentinel datalogger.

        TELLUS

        This sensor measures ground velocity.

        TELLUS-R2

        This sensor measures ground rotation in V/rad/s.

      • MagseisFairfield

        Below is some model-specific information to help you locate your instrument response.

        ZLAND-Gen2

        This geophone measures ground velocity. These are the onboard geophone responses for the Zland Generation 2 Node instruments. They have published effective sensitivities and total damping values of 0.7, but resistances are not specified. Zland Generation 1 Nodes used Geospace GS-30CT geophones onboard.

      • Nanometrics

        Below is some model-specific information to help you locate your instrument response.

        MeridianPosthole

        This sensor measures ground velocity. It is the onboard sensor for the Meridian Posthole datalogger.

        MeridianCompactPosthole

        This sensor measures ground velocity. It is the onboard sensor for the Meridian Compact datalogger.

        Titan

        This accelerometer measures ground acceleration. It is the onboard accelerometer for the Trillium Cascadia Posthole, the TitanSMA and Titan EA.

        Trillium40

        This sensor measures ground velocity.

        Trillium120P

        This sensor measures ground velocity.

        Trillium120PA

        This sensor measures ground velocity.

        Trillium120Q

        This sensor measures ground velocity.

        Trillium120QA

        This sensor measures ground velocity.

        Trillium120PH

        This sensor measures ground velocity.

        Trillium120BH

        This sensor measures ground velocity.

        Trillium240

        This sensor measures ground velocity.

        Trillium240OBS

        This sensor measures ground velocity.

        Trillium360

        This sensor measures ground velocity.

        Trillium360BH

        This sensor measures ground velocity.

        Trillium360PH

        This sensor measures ground velocity.

        Trillium360GSN

        This sensor measures ground velocity.

        Trillium360GSNBH

        This sensor measures ground velocity.

        Trillium360GSNPH

        This sensor measures ground velocity.

        TrilliumAllTerrain

        This sensor measures ground velocity.

        TrilliumCascadia

        This sensor measures ground velocity. This is the response for the Trillium Compact onboard sensor. For the onboard accelerometer, please use Titan accelerometer responses.

        TrilliumCompact20

        This sensor measures ground velocity.

        TrilliumCompact20Horizon

        This sensor measures ground velocity.

        TrilliumCompact20PH

        This sensor measures ground velocity.

        TrilliumCompact120

        This sensor measures ground velocity.

        TrilliumCompact120Horizon

        This sensor measures ground velocity.

        TrilliumCompact120PH

        This sensor measures ground velocity.

        TrilliumCompact120OBS

        This sensor measures ground velocity.

        TrilliumHorizon120

        This sensor measures ground velocity.

        TrilliumHorizon120v2

        This sensor measures ground velocity.

        TrilliumSlimPosthole120

        This sensor measures ground velocity.

      • REFTEK

        Below is some model-specific information to help you locate your instrument response.

        RT131A-02

        This accelerometer measures ground acceleration.

        RT131B-01

        This accelerometer measures ground acceleration.

        RT131B-02-03

        This accelerometer measures ground acceleration.

        RT147

        This accelerometer measures ground acceleration.

        RT147A

        This accelerometer measures ground acceleration.

        RT151A

        This sensor measures ground velocity.

        RT151B

        This sensor measures ground velocity.

      • RSensors

        Below is some model-specific information to help you locate your instrument response.

        CME-3211

        This sensor measures ground velocity.

        CME-3311

        This sensor measures ground velocity.

        CME-4011/4011OB

        This sensor measures ground velocity.

        CME-4111/4111OB

        This sensor measures ground velocity.

        CME-4211

        This sensor measures ground velocity.

        CME-4311

        This sensor measures ground velocity.

        CME-6011

        This sensor measures ground velocity.

        CME-6111

        This sensor measures ground velocity.

        CME-6211

        This sensor measures ground velocity.

        MTSS-1001

        This geophone measures ground velocity.

        MTSS-1031A/h3>

        This accelerometer measures ground acceleration.

        MTSS-1033A/h3>

        This accelerometer measures ground acceleration.

        MTSS-1041A/h3>

        This accelerometer measures ground acceleration.

        MTSS-1043A/h3>

        This accelerometer measures ground acceleration.

        MTSS-2003

        This geophone measures ground velocity.

      • SARA

        Below is some model-specific information to help you locate your instrument response.

        SA10

        This sensor measures ground acceleration.

        SS01

        This sensor measures ground velocity.

        SS02

        This sensor measures ground velocity.

        SS05

        This sensor measures ground velocity.

        SS10

        This sensor measures ground velocity.

      • SeismoWave

        Below is some model-specific information to help you locate your instrument response.

        MB3a

        This infrasound sensor measures air pressure.

      • Sercel

        Because geophones are passive sensors, nominal responses assume that the sensor is level, the coil and shunt resistances match those listed for the response, and that the preamplifier impedance of the datalogger is at least 2 orders of magnitude greater than the sensor impedance match those listed. To learn how customize these nominal responses for your specific instrumentation, here

        L-4A

        This geophone measures ground velocity.

        L-4C

        This geophone measures ground velocity.

        L-10AR

        This geophone measures ground velocity.

        L-10B

        This geophone measures ground velocity.

        L-22D

        This geophone measures ground velocity.

        L-22E

        This geophone measures ground velocity.

        L-28LB

        This geophone measures ground velocity.

        SGHT-15

        This geophone measures ground velocity.

      • SiliconAudio

        Below is some model-specific information to help you locate your instrument response.

        103P-OmniTilt-Accel

        This optical accelerometer measures ground acceleration.

        113P-OmniTilt-Vel

        This optical seismometer measures ground velocity.

        203P-LowNoise-Accel

        This optical accelerometer measures ground acceleration.

        113P-LowNoise-Vel

        This optical seismometer measures ground velocity.

      • SolGeo

        Below is some model-specific information to help you locate your instrument response.

        Veloget

        This sensor measures ground velocity.

      • Sprengnether

        Because geophones are passive sensors, nominal responses assume that the sensor is2level, the coil and shunt resistances match those listed for the response, and that the preamplifier impedance of the datalogger is at least 2 orders of magnitude greater than the sensor impedance match those listed. To learn how customize these nominal responses for your specific instrumentation, here.

        S6000

        This geophone measures ground velocity.

      • Streckeisen

        Below is some model-specific information to help you locate your instrument response.

        STS-1

        This sensor measures ground velocity.

        STS-2

        This sensor measures ground velocity.

        STS-2.5

        This sensor measures ground velocity. This sensor has the same response as the STS-3, but differs in its casing.

        STS-3

        This sensor measures ground velocity. This sensor has the same response as the STS-2.5, but differs in its casing.

        STS-5A

        This sensor measures ground velocity.

      • soh

        Below is some manufacturer-specific information to help you locate your instrument response.

        • GenericUnity

          This collection of soh responses include several input unit types, all having unity amplitude.When no datalogger-specific soh response information is available, these responses can be modified with other gains and sample rates.

        • Quanterra

          Describes state of health response information for Quanterra dataloggers and related components

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