Vertical Reference ADS-C232-3AD (Dual Axis)

Our newest ADS sensor is a fully functional vertical reference in a miniaturized package. Without sacrificing the accuracy Watson sensors are known for, this ADS occupies about one tenth the volume! This new ADS is ideal for space-limited leveling and stabilization applications where high precision is required.


  • Solid State, Strapdown System
  • High Accuracy
  • Low Cost, Low Power
  • Rugged, High Reliability
  • Analog and RS-232 Digital Outputs
  • One Year Limited Warranty
  • Engineering Support

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Introducing the ADS-C232-3AD, Watson Industries newest sensor system! It is a much smaller, yet fully functional vertical reference system that can serve as a replacement for a Watson VRS in many applications.

The Watson Industries Dual Axis Vertical Reference System is a solid-state gyro package that measures angular displacement and rate, especially where dynamic motion may interfere. Under these conditions, the effects of lateral accelerations severely limit the performance of an ordinary accelerometer or pendulous device.

The Watson Dual Axis Vertical Reference achieves exceptional performance by integrating the output of a vibrating structure gyro to get an estimate of the attitude, which is then compared to accelerometers to find the error. The error is filtered over a long time constant and subtracted from the rate gyro output to correct biases in a closed loop error correction system. This process lets the gyro measure short-term attitude accuracy above the correction loop frequency while the accelerometer serves as the long-term reference.

The ADS can be a functional replacement for mechanical gyros, which are often more expensive, larger, heavier and less reliable than this solid-state sensor. It is especially suited for applications where there is limited bank and elevation such as ships, underwater vehicles, some land vehicles, and certain camera applications.