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GEM GSM-19 Configuration Instructions

Magnetometer
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WinFrog Device Group:
Device Name/Model:
Device Manufacturer:
Device Data String(s)
Output to WinFrog:
WinFrog Data String(s)
Output to Device:
WinFrog Data Item(s) and their
RAW record:
DEVICE DESCRIPTION:
A magnetometer is an instrument that measures Magnetic Flux Density (in Tesla's). The
Earth generates a relatively strong magnetic field, which produces flux densities, in air
or water. The values of the earth's magnetics range from a low of about 18 microTesla
(µT) near South America, to a high of over 60 microTesla in the Arctic Circle.
The GSM-19 Marine Magnetometer utilizes an omnidirectional Overhauser sensor and
can be configured to operate via the Overhouser effect or as a conventional proton
precession unit. See Configuration Details section for information on the Overhauser
effect.
The GSM-19 consists of one Overhauser sensor, an electronic 'fish' assembly and an
FSK transceiver unit. The fish and sensor are packaged in a sealed container with a
WinFrog User's Guide - Appendix C – Magnetometer / GSM-19
Magnetometer
GSM-19 (GSM-19M or GSM-19MD)
MARINE MAGNETICS CORPORATION
(formerly GEM Systems Inc.)
52 West Beaver Creek Rd., Unit 14/16,
Richmond Hill Ontario, Canada, L4B 1L9
Phone: (905) 764-8008, Fax: (905)764-2949
Email: info@gemsys.on.ca, web:
www.marinemagnetics.com
RS-232 ASCII output
Time = gpstime, else time is read from
magnetometer as hours, minutes, seconds.
Other parameters read for GSM19M: measurement
time, and magneticField.
Other parameters read for GSM-19MD:
magneticField, signal strength, depth of fish, leak,
measurement time, quality, warning message and
status.
See Configuration Details for Warning Messages.
N/A
MAGNETOMETER
www.gemsys.on.ca
800
Page 1 of 5

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Summary of Contents for GEM GSM-19

  • Page 1 See Configuration Details section for information on the Overhauser effect. The GSM-19 consists of one Overhauser sensor, an electronic ‘fish’ assembly and an FSK transceiver unit. The fish and sensor are packaged in a sealed container with a WinFrog User’s Guide - Appendix C –...
  • Page 2 The GSM-19 is added to WinFrog from the Magnetometer device group. The MAGNETOMETER data item is added along with the GSM-19 device. You must select the GSM model type (GSM-19 or GSM-19MD) at the device level. WinFrog User’s Guide - Appendix C – Magnetometer / GSM-19...
  • Page 3 The default configuration is GSM-19. To configure for GSM-19MD input, right-click in the I/O Devices window and choose Configure Device (i.e. the Select GSM Model dialog does not open automatically when the device is added to WinFrog). WINFROG VEHICLE > CONFIGURE VEHICLE DEVICES > DEVICE DATA ITEM >...
  • Page 4 (to 38.4 kBps) with ultra-fast raw dump feature) • continuous radio frequency polarization and special sensors to maximize the signal-to-noise ratio • instrument sensitivity • resolution 0.01 nT WinFrog User’s Guide - Appendix C – Magnetometer / GSM-19 Page 4 of 5...
  • Page 5 • standard tow cable is Kevlar jacket designed to prevent rotational preference. Magnetometer Units: 1 gamma = 1nT where T stands for Tesla. 1000 gammas = 1µT = 1 Killogamma WinFrog User’s Guide - Appendix C – Magnetometer / GSM-19 Page 5 of 5...

This manual is also suitable for:

Gsm-19mdGsm-19m