Thread: Some AmaSeis improvements

Started: 2008-02-02 16:34:59
Last activity: 2008-05-19 17:53:30
Topics: IRIS EPO
Alan Jones
2008-02-02 16:34:59
I have made some small changes in AmaSeis and in the Stations program.

2008.02.02: At request of John Lahr, Normalized the Fourier Transform so that when analyzing noise, the amplitude remains relatively constant as you extract different length signsls. Stations program in AmaSeisAux now automatically downloads the IRISEdStations.xml file from the IRIS download site.

The Stations program displays a map of the world showing the stations that are providing real-time upload of their data. You just click on one of these stations and the last day's data are downloaded and displayed on an AmaSeis screen. Consider adding your station to those who are automatically uploading their data.

To obtain these programs, follow this link:

http://bingweb.binghamton.edu/~ajones/AmaSeis.html

Note, that this link has changed. The older www.geol.binghamton.edu computer is being phased out. Please change your links.

Alan

############################
# Alan Jones
## AlanJones<at>stny.rr.com
### http://home.stny.rr.com/alanjones
#### 607-786-5866
##### 3717 Wildwood Drive
###### Endwell, NY 13760
############################
  • Alan Jones
    2008-02-03 15:48:35
    Jerry,

    Thanks for the heads up. I switched to multi-threaded libraries recently and forgot to include them in the distribution. This has been fixed. Try downloading again.

    I'm sorry for the problem.

    Alan
    ----- Original Message -----
    From: Jerry Cook and Dell Taylor
    To: 'Alan Jones'
    Sent: Saturday, February 02, 2008 11:10 PM
    Subject: RE: [irised] Some AmaSeis improvements


    Hi Dr. Jones,

    I have downloaded, removed, and reinstalled the latest version of AmaSeis three times and can never get it to load. Every time I try to start the program I get the following error message "as1.exe unable to locate component. OWL52t.dll was not found". I searched the internet for this file with no success. Any suggestions?

    Jerry R. Cook

    Phoenix Country Day School




    ------------------------------------------------------------------------------

    From: irised-bounces<at>iris.washington.edu [irised-bounces<at>iris.washington.edu] On Behalf Of Alan Jones
    Sent: Saturday, February 02, 2008 6:35 AM
    To: IRISED
    Subject: [irised] Some AmaSeis improvements



    I have made some small changes in AmaSeis and in the Stations program.



    2008.02.02: At request of John Lahr, Normalized the Fourier Transform so that when analyzing noise, the amplitude remains relatively constant as you extract different length signsls. Stations program in AmaSeisAux now automatically downloads the IRISEdStations.xml file from the IRIS download site.



    The Stations program displays a map of the world showing the stations that are providing real-time upload of their data. You just click on one of these stations and the last day's data are downloaded and displayed on an AmaSeis screen. Consider adding your station to those who are automatically uploading their data.



    To obtain these programs, follow this link:



    http://bingweb.binghamton.edu/~ajones/AmaSeis.html



    Note, that this link has changed. The older www.geol.binghamton.edu computer is being phased out. Please change your links.



    Alan


    ############################
    # Alan Jones
    ## AlanJones<at>stny.rr.com
    ### http://home.stny.rr.com/alanjones
    #### 607-786-5866
    ##### 3717 Wildwood Drive
    ###### Endwell, NY 13760
    ############################

  • Alan Jones
    2008-05-19 14:22:31
    Tom,

    The analog-to-digital converter (the black box) has a zero-setting knob which is very sensitive. Also, I believe that the electronic components alter their characteristics change. It has nothing to do with the boom not being centered because the device reads velocity, not position. It can be way off center but still have the trace right on line. There are two ways to recenter the line: (1) with the knob or (2) with the zero adjustment in AmaSeis.

    Alan
    ----- Original Message -----
    From: Tom Blake
    To: Alan Jones
    Cc: IRISED
    Sent: Monday, May 19, 2008 5:34 AM
    Subject: Re: [irised] Some AmaSeis improvements



    I had a query from a teacher who is using the Amaseis software. I
    noticed in a helicorder screen dump that he sent me, that the seismic
    trace was not co-incident with the helicorder hour line, so I asked him
    to adjust the zero value until there both were co-incident, but then he
    replied with this question,

    What is the origin of the zero value, is it due to the boom not being
    perfectly centred and causing an offset in the voltage output of the
    coil?? Just wondering?

    Would anyone suggest an answer, please

    Sincerely
    Tom Blake


    Alan Jones wrote:
    > I have made some small changes in AmaSeis and in the Stations program.
    >
    > *2008.02.02: *At request of John Lahr, Normalized the Fourier
    > Transform so that when analyzing noise, the amplitude remains
    > relatively constant as you extract different length signsls. Stations
    > program in AmaSeisAux now automatically downloads the
    > IRISEdStations.xml file from the IRIS download site.
    >
    > The Stations program displays a map of the world showing the stations
    > that are providing real-time upload of their data. You just click on
    > one of these stations and the last day's data are downloaded and
    > displayed on an AmaSeis screen. Consider adding your station to those
    > who are automatically uploading their data.
    >
    > To obtain these programs, follow this link:
    >
    > http://bingweb.binghamton.edu/~ajones/AmaSeis.html
    > http://bingweb.binghamton.edu/%7Eajones/AmaSeis.html
    >
    > Note, that this link has changed. The older www.geol.binghamton.edu
    > http://www.geol.binghamton.edu computer is being phased out. Please
    > change your links.
    >
    > Alan
    >
    > ############################
    > # Alan Jones
    > ## AlanJones<at>stny.rr.com <AlanJones<at>stny.rr.com>
    > ### http://home.stny.rr.com/alanjones
    > #### 607-786-5866
    > ##### 3717 Wildwood Drive
    > ###### Endwell, NY 13760
    > ############################
    > ------------------------------------------------------------------------
    >
    > _______________________________________________
    > irised mailing list
    > irised<at>iris.washington.edu
    > http://www.iris.washington.edu/mailman/listinfo/irised
    >


    --
    ====================================================================
    Thomas Blake, (Experimental Officer) E-mail tb<at>cp.dias.ie
    Geophysics Section, School of Cosmic Physics,
    Dublin Institute for Advanced Studies
    5 Merrion Square VOIP 353-1-6535147 x 223
    Dublin 2 Phone 353 1 662 1333
    Ireland Fax 353 1 443 0575
    Web Address: WWW http://www.dias.ie/~tb/
    ====================================================================

  • Tom Blake
    2008-05-19 17:34:39

    I had a query from a teacher who is using the Amaseis software. I
    noticed in a helicorder screen dump that he sent me, that the seismic
    trace was not co-incident with the helicorder hour line, so I asked him
    to adjust the zero value until there both were co-incident, but then he
    replied with this question,

    What is the origin of the zero value, is it due to the boom not being
    perfectly centred and causing an offset in the voltage output of the
    coil?? Just wondering?

    Would anyone suggest an answer, please

    Sincerely
    Tom Blake


    Alan Jones wrote:
    I have made some small changes in AmaSeis and in the Stations program.

    *2008.02.02: *At request of John Lahr, Normalized the Fourier
    Transform so that when analyzing noise, the amplitude remains
    relatively constant as you extract different length signsls. Stations
    program in AmaSeisAux now automatically downloads the
    IRISEdStations.xml file from the IRIS download site.

    The Stations program displays a map of the world showing the stations
    that are providing real-time upload of their data. You just click on
    one of these stations and the last day's data are downloaded and
    displayed on an AmaSeis screen. Consider adding your station to those
    who are automatically uploading their data.

    To obtain these programs, follow this link:

    http://bingweb.binghamton.edu/~ajones/AmaSeis.html
    http://bingweb.binghamton.edu/%7Eajones/AmaSeis.html

    Note, that this link has changed. The older www.geol.binghamton.edu
    http://www.geol.binghamton.edu computer is being phased out. Please
    change your links.

    Alan

    ############################
    # Alan Jones
    ## AlanJones<at>stny.rr.com <AlanJones<at>stny.rr.com>
    ### http://home.stny.rr.com/alanjones
    #### 607-786-5866
    ##### 3717 Wildwood Drive
    ###### Endwell, NY 13760
    ############################
    ------------------------------------------------------------------------

    _______________________________________________
    irised mailing list
    irised<at>iris.washington.edu
    http://www.iris.washington.edu/mailman/listinfo/irised



    --
    ====================================================================
    Thomas Blake, (Experimental Officer) E-mail tb<at>cp.dias.ie
    Geophysics Section, School of Cosmic Physics,
    Dublin Institute for Advanced Studies
    5 Merrion Square VOIP 353-1-6535147 x 223
    Dublin 2 Phone 353 1 662 1333
    Ireland Fax 353 1 443 0575
    Web Address: WWW http://www.dias.ie/~tb/
    ====================================================================


    • Bob Hutt
      2008-05-19 17:53:30
      The amplifier in the little black box is the cause of the DC
      offset. It has nothing to do with the boom position, as the output
      of the coil and magnet is zero whenever there is no motion between
      the coil and magnet, regardless of the boom position.

      Bob Hutt

      At 03:34 AM 5/19/2008, Tom Blake wrote:

      I had a query from a teacher who is using the Amaseis software. I
      noticed in a helicorder screen dump that he sent me, that the seismic
      trace was not co-incident with the helicorder hour line, so I asked him
      to adjust the zero value until there both were co-incident, but then he
      replied with this question,

      What is the origin of the zero value, is it due to the boom not being
      perfectly centred and causing an offset in the voltage output of the
      coil?? Just wondering?

      Would anyone suggest an answer, please

      Sincerely
      Tom Blake


      Alan Jones wrote:
      I have made some small changes in AmaSeis and in the Stations program.

      *2008.02.02: *At request of John Lahr, Normalized the Fourier
      Transform so that when analyzing noise, the amplitude remains
      relatively constant as you extract different length signsls. Stations
      program in AmaSeisAux now automatically downloads the
      IRISEdStations.xml file from the IRIS download site.

      The Stations program displays a map of the world showing the stations
      that are providing real-time upload of their data. You just click on
      one of these stations and the last day's data are downloaded and
      displayed on an AmaSeis screen. Consider adding your station to those
      who are automatically uploading their data.

      To obtain these programs, follow this link:

      http://bingweb.binghamton.edu/~ajones/AmaSeis.html
      http://bingweb.binghamton.edu/%7Eajones/AmaSeis.html

      Note, that this link has changed. The older www.geol.binghamton.edu
      http://www.geol.binghamton.edu computer is being phased out. Please
      change your links.

      Alan

      ############################
      # Alan Jones
      ## AlanJones<at>stny.rr.com <AlanJones<at>stny.rr.com>
      ### http://home.stny.rr.com/alanjones
      #### 607-786-5866
      ##### 3717 Wildwood Drive
      ###### Endwell, NY 13760
      ############################
      ------------------------------------------------------------------------

      _______________________________________________
      irised mailing list
      irised<at>iris.washington.edu
      http://www.iris.washington.edu/mailman/listinfo/irised



      --
      ====================================================================
      Thomas Blake, (Experimental Officer) E-mail tb<at>cp.dias.ie
      Geophysics Section, School of Cosmic Physics,
      Dublin Institute for Advanced Studies
      5 Merrion Square VOIP 353-1-6535147 x 223
      Dublin 2 Phone 353 1 662 1333
      Ireland Fax 353 1 443 0575
      Web Address: WWW http://www.dias.ie/~tb/
      ====================================================================

      _______________________________________________
      irised mailing list
      irised<at>iris.washington.edu
      http://www.iris.washington.edu/mailman/listinfo/irised


18:50:06 v.01697673