If your application involves vibration, acceleration, movement over uneven terrain or rough seas, you will find the True North Revolution GS+ electronic compass to be an uncompromising solution that will outperform rival products costing considerably more. The GS+ provides remarkably accurate heading, pitch, and roll in unstable conditions. It uses vibration-rejection rate gyros to stabilize accelerometer measurements. False short-term indications of pitch and roll rotations are eliminated by using the gyro signals instead of accelerometer readings at high frequencies.

The GS+ is a member of our high performance AV+ family. It uses the same RoHS compliant PC assemblies and firmware. Circuit boards are conformal coated to withstand rugged environments and to protect the non-magnetic silver PCB finish required for accurate sensing of earth’s magnetic field.

The recommended applications for the GS+ are manned and unmanned vehicles, robotics, weather buoys, antenna positioning, platform stabilization, marine navigation, excavation machinery, and irrigation equipment.

True North offers a development kit that includes the compass, cable, and software. The Revolution GS+ is covered by a full one-year warranty for workmanship.

Product Brochure (PDF): Revolution AV+Family Brochure

Features

  • Exceptional Dynamic Performance
    • Heading within 3° typical for rates <  150 °/sec
    • Pitch and roll within 0.3 ° for rates < 150 °/sec
  • High Static Accuracy
    • Heading within 0.5° or better
    • Pitch & Roll within 0.2° or better
  • Wide Operating Range
    • ±90° Pitch, ±180° Roll
    • ±80° Dip angle range
    • Temperature -50° to 110°C
    • Local Hard Iron to ±1.5 Gauss (to be compensated)
  • Precise Calibration
    • Gyros calibrated for offset drift from -50° to 110° C
    • Rate sensors calibrated and aligned to magnetometer and accelerometer
    • Cross-axis error nearly eliminated
  • Fast Response
    • 27.5 readings per second (to maximize attenuation of 50-60Hz mag fields)
    • Wake from standby in 50 msec
  • Single Supply Operation
    • 6 to 45V unregulated DC
    • Reverse polarity protection
  • Low Power
    • 40 mA operating (Run mode)
    • 20 mA idle (Sample mode)
  • Wide Selection of ASCII or Binary Output data
    • Heading, pitch, and roll
    • Magnetometer X, Y, and Z
    • Temperature, input voltage, and dip angle
    • Output ASCII or Binary
    • Horizontal X and Y magnetic field strength
    • Raw and conditioned gyro data
  • Two independent serial channels
    • Full-duplex RS-232 for the external RJ12
    • Either RS-232 or full-duplex RS-485 for the internal connector
    • Baud rates to 115,200, 8N1 byte format
  • In-System Configuration and Test
    • Laptop can be connected while unit operates in situ
    • Perform hard and soft iron calibration
    • Capture and store data in CSV file format

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