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Experience with Earth Data Digitizers and Seislog Jens Havskov Department of Earth Science

Experience with Earth Data Digitizers and Seislog Jens Havskov Department of Earth Science University of Bergen Norway ESC Potsdam, September 2004. - UiB has used ED digitizers since around 1993 Currently using old model EDM006 and newer model PS2400

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Experience with Earth Data Digitizers and Seislog Jens Havskov Department of Earth Science

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  1. Experience with Earth Data Digitizers and Seislog Jens Havskov Department of Earth Science University of Bergen Norway ESC Potsdam, September 2004

  2. - UiB has used ED digitizers since around 1993 • Currently using old model EDM006 and newer model PS2400 • Digitizers have only been used with Seislog software • Seislog for QNX • Seislog for Windows • Seislog for PocketPC • A Seislog Linux is now being tested

  3. Seislog system Seislog is a general purpose data acquisition system running on different platforms. All system supports digitizers from 8-10 different manufactures. QNX Seislog: In operation since 1995, support one digitizer at a time, records in Seislog format. About 100 currently in operation. No further software development. Windows Seislog: In operation since 2000, supports several digitizers at the same time, records in SEISAN format, > 20 in operation. WindowsCE Seislog: In operation since 2001, supports only one digitizer at a time, records in SEISAN format, > 5 in operation. Linux Seislog: In operation since 2004, supports several digitizers at the same time, records in SEISAN format, 2 in test operation.

  4. Old ED digitizer 3 Units in operation since 1995 One channel damaged in 9 years Very stable

  5. New ED digitizer 5 in operation in Norway since 1998 Stable operation, good S/N ratio Several have been returned for repair Sensitive to humidity, in Norway this has introduced instability in operation (1 s spikes, funny signals etc). All are now indoors, which seemed to cure the problem RS232 output will not work with a some PC’s

  6. New ED digitizer in Guatemala, South Africa and Spain Guatemala: Digitizers installed in field in well aired concrete houses, there has not been any problems since installation one year ago. Spain and South Africa: Apparently working ok, have no detailed information.

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