Vibrating Structure Gyros
VSG - E Series
Click here to see our ARS series rate gyro.
Description:
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.
Applications:
The VSG gyro has performed well in a multitude of applications. See our
Applications index for an extensive listing of our gyro
applications.
Features:
| • | | 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 |
Vibrating Structure Gyro
VSG-E Specifications |
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 |
Environmental |
| 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 |
Electrical |
| Input Power: | 8.5 to 16VDC | 0.7W |
| Input Current: | 80mA @ 12VDC |
| Analog Output: | ±5VDC (Typical) | See table below |
| Output Impedance: | 1000 Ohm |
Physical |
| 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. |
|
VSG Gyro Dimensions |
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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 |
