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Movement & Acceleration Sensors



Submersible Miniature Compass

High reliability submersible advanced pitch/roll compensated COMPASS / MAGNETOMETER system is built around a state of the art CMOS microcontroller utilizing AOSI's proprietary algorithm on a 0.9" x 2" assembled PCB with a total height including tilt sensing elements of less then an inch. 

Packaged in a marine grade black anodized cylindrical aluminum housing the unit outputs continuous heading, field, dual axis tilt and temperature data over the standard RS-232 or RS-422 or RS-485 interface at depth up to 3500 meters. The AZIMUTH is generated from a 3 axis semiconductor magnetometer with 12 bit ( 0.08 deg ) resolution. The LINEAR tilt information is available with 12 bit resolution for up to +-180arcdeg in roll and +-90 deg in pitch.

COMPASS/TILT module is perfectly suitable for numerous underwater navigation, research, training, construction, entertainment and other precision orientation, navigation and leveling applications. Bottom exterior surface is calibrated for accurate zero level 

The COMPASS is able to output heading information in NMEA-0183 and local LCD modes. Easy link via Hyper Terminal Windows accessory facilitates custom calibration, hard/soft iron compensation, data acquisition, data averaging, and data display. EZ-COMPASS-4-DIVE-M is supplied with a mating connector molded to 4 feet cable. Custom cable length are available and are quoted upon request.

 Parameter  Specification  Units
 Azimuth Range  0 - 360  degrees, cont
 Azimuth Resolution  12 (0.08)  bit (degrees)
 Azimuth Repeatabilty  < 0.25  degrees
 Azimuth Accuracy  < 1.0  degrees
 Magnetic Field  ±2  Gauss
 Magnetic Resolution  <1  mGauss
 Pitch Range  +90 to -90  arcdeg
 Roll Range  +180 to -180  arcdeg
 Tilt Resolution  12  bits (full scale)
 Tilt Repeatability  <2  bits
 Operational Depth  3500  meters
 Operating Temperature  -40 to +80  °C
 Storage Temperature  -50 to +95  °C
 Communication  300 - 114Kbaud  RS232 std
 Supply +8 to +14 (12Vdc typ)  Vdc
 Size  1.8" dia x 4.5"  Outside dims
 NMEA-0183 mode 5 sentences  must use CR LF


Quantity Order Code Current Voltage Activation Level Temp. Range
EZ-COMPASS-4-DIVE-M submersible
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