VSG Series Rate Gyros



  • High Accuracy
  • High Reliability
  • Input Ranges up to 3000° per second
  • Low Noise
  • Low Power
  • Small Size and Weight
  • Low Cost
  • Two Year Limited Warranty
  • Engineering Support



The Vibrating Structure Gyro is a solid state rate sensor that is designed around a piezoceramic cup that can measure coriolis force. This allows the VSG to produce a highly accurate output that is proportional to the rate of turn. Electronics for filtering, control, drive and demodulation are all packaged along with a single axis sensing element inside a small housing. Wide input rate ranges (up to 3000° per second) are available. Unipolar or bipolar output voltage configurations are available as well.

Principles of VSG Gyro Operation – See some of the science behind how the VSG gyro works.

The Pro Gyro® and ARS-G152 series rate gyros have been engineered to meet the specifications of the VSG to serve as a VSG replacement.

You may also be interested in our ARS series rate gyro.

The VSG gyro has performed well in a multitude of applications. See our Applications index for an extensive listing of our gyro applications.


Angular Rate

Range: ±100° /sec Up to ±3000° /sec available
Resolution: 0.025° /sec
Analog Scale Factor: 20° /sec/V (Typical) See table below
Scale Factor Accuracy: 1% Constant temperature
Scale Factor Temp Coefficient +1% to -6% Over temperature range
Bias: < ±0.02° /sec
Bias: Zero Bias 0.1° /sec Run-To-Run
Bias: Over Temp Range ±2.0° /sec
Warmup Drift: ±2.0° /sec
Non-Linearity: < 0.03% Full scale range
Bandwidth: > 70 Hz
Noise: < 0.02° /sec rms 1 Hz to 100 Hz


Temperature: Operating -30° C to +60° C
Temperature: Storage -55° C to +85° C
Vibration: Operating 5g rms 20 Hz to 2 kHz
Vibration: Survival 10g rms 20 Hz to 2 kHz
Shock: Survival 500g 10ms ½ sine wave


Input Power: 8.5 to 16VDC 0.7W
Input Current: 80mA @ 12VDC
Analog Output: ±5VDC (Typical) See table below
Output Impedance: 1000 Ohm


Size: Including Mounting Flanges 1.68″W x 2.96″L x 1.57″H 4.3 x 7.5 x 4 (cm)
Weight: 4.6oz (0.3lb) 130 grams (0.1Kg)
Connection: Wire Bundle
Life: > 100,000 Hrs MTBF
Specifications are subject to change without notice.
This product may be subject to export restrictions. Please consult the factory.

Watson Industries Standard VSG Gyro models

Model WPN Range Output Zero Ref (0° /sec) Scale Factor
VSG-E555 99555 ±50° /sec 0 to 5 VDC 2.5 VDC 20° /sec/V
VSG-E469 99469 ±50° /sec ±5 VDC 0.0 VDC 10° /sec/V
VSG-E053 99053 ±100° /sec 0 to 5 VDC 2.5 VDC 40° /sec/V
VSG-E470 99470 ±100° /sec ±5 VDC 0.0 VDC 20° /sec/V
VSG-E601 99601 ±200° /sec ±5 VDC 0.0 VDC 40° /sec/V



Title File Type
VSG Spec Sheet pdf Download
VSG Bipolar Owner’s Manual pdf Download
VSG Unipolar Owner’s Manual pdf Download