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Movement & Acceleration Sensors



Tilt Compensated Compass / Linear Dual Axis Tilt System

Low cost VERTICAL SOLID STATE advanced Pitch / Roll / Temperature compensated COMPASS / MAGNETOMETER system is built around a state of the art CMOS microcontroller utilizing AOSI's proprietary algorithm on a 0.9"DIAM x 6" assembled PCB is designed to fit sub 1" tubular probes. 

The LOGGING COMPASS permits users standalone data collection of up to 20000 data samples without use of any additional loggers of any other equipment. The user can pre-select required data and set the compass into the logging mode.

Upon next power-up the logging compass after predetermined delay will initiate automatic data collection at accurate logging intervals. At the end of logging, data can be easily moved into a delimited text file for future analysis.

Example: with 10 sec read intervals and 4 selected variables the compass will perform logging for about 11 hours. Logging compass is available as regular, vertical or horizontal configuration ( see photos above )

The unit outputs continuous heading, magnetic field, dual axis tilt and temperature data over the standard RS-232 and RS-422 and  RS-485* interfaces. 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 over +-90arcdeg. COMPASS/TILT module is perfectly suitable for logging, bore hole profiling, antenna orientation, numerous navigation, research, training, construction, entertainment and other precision orientation, navigation and leveling applications. 

The COMPASS is able to output multi-sensor information in NMEA-0183 mode and responds to numerous generally used commands. Easy link through the Hyper Terminal Windows accessory facilitates custom calibration, hard iron compensation, data acquisition, data averaging, scan delay, dumping factor and data display.

 Parameter  Specification  Units
 Azimuth Range  0 - 360  degrees, cont
 Azimuth Resolution  12 (0.08)  bit (degrees)
 Azimuth Repeatabilty  < 0.25  degrees
 Azimuth Accuracy  < 0.5  degrees
 Magnetic Field  ±2  Gauss
 Magnetic Resolution  <1  mGauss
 Pitch Range  +90 to -90  arcdeg
 Roll Range  +180 to -180  arcdeg
 Weight 20  grams
 Dynamic Range  10  readings/sec
 Tilt Resolution  12  bit (full scale)
 Tilt Repeatability  <2  bits
 Operating Temperature  -40 to +85  °C
 Communication  1200 - 38,400 baud  RS232 & RS422
 Supply +6 to +15  Vdc
 Size  1.5" x 2" x 0.5"  PCB
 NMEA-0183 mode  5 select modes  1999 rev




















 Logging Capacity  20,000         readings
 Startup Logging Delay  >=5  seconds (min)
 Sample Logging Rate  >=5  every 5 secs (or longer)
 Logging Duration  >=60  60 secs (or longer)


Quantity Order Code Current Voltage Activation Level Temp. Range
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