Geomatrix Earth Science Ltd

 

 

Very high resolution Caesium Vapour performance has been incorporated onto a low cost, small size, system for professional surveys in shallow water. High sensitivity at fast sample rates of total field measurements are maintained for all applications.

Features include:

  • Streamlined design for tow safety

  • Quick conversion from CG tow to nose tow, easy carry handles

  • Highest Sensitivity in the industry, 0.004nT/root Hz

  • Digital output, can be logged with MagLog™  software.

  • Low weight, can be man handled

  • New internal CM221 counter module, provides flash memory for storage of default parameter set by user.

  • New Echosounder/altimeter option

  • Zero phase lag on data

  • True amplitudes reported

  • Can be combined into gradient arrays, transverse, vertical or longitudinal

  • Data from multiple magnetometers can easily be concatenated into a single data stream
 
NEW  Geometrics G-882 Marine Caesium Vapour Magnetometer
 
 

 

 

 

 

 

 

Specifications

Measured Quantity  Total Magnetic field in nT typical sensitivity 0.02nT at 0.1sec sample interval
Operating Principle  Self Oscillating split beam Optically pumped Caesium Vapour cell (non-radioactive)
Heading Error  < +/- 1nT over entire 360° range
Absolute Accuracy  <3nT throughout range
Output  RS232 @ 1200 to  19200 baud (other output rates on request)
Power Supply  24 to 32 VDC
Operating Temperature -35° to + 50° C
Operating Range   20,000nT to 100,000nT
Pressure Rating  4000 psi (approx 2600 metres)
Operating Zones The earth's field vector should be at an angle of greater than 6° away from the sensor's equator and greater than 6° away from the sensor's long axis. Automatic hemisphere switching
Physical:
Dimensions Instrument: body 7cm dia  x 175 cm
Weight Instrument: 18kg
Cable: 3.85 kg/30m

Data Sheet (135kb pdf)

Geometrics main

Caesium Active Zone calculator program

For actual test results of Caesium Vapour sensors heading error click here, for actual test results on Caesium Vapour sensors noise level and bandwidth click here.