Watson Industries, Inc.
VSG Bipolar Rev E 02/15/2008
Vibrating Structure Gyroscope
Bipolar Version
Owner’s Manual
1.
Description
The Vibrating Structure Gyroscope (VSG) is a solid state, single-axis, angular rate
sensor. The VSG provides a voltage proportional to the rate of turn about its sensitive
axis and requires only DC power for operation.
The sensitive axis is perpendicular to the base of the instrument. Angular rotation
about this axis is sensed by a vibrating ceramic cylinder. Coriolis forces acting upon
the cylinder result in a DC output proportional to the rate of rotation.
2.
Characteristics
2.1 Electrical
The input range, sensitivity, and resolution for different versions of the VSG are
given in Table 1.
Table 1
The VSG power requirements are given in Table 2.
Supply
Voltages
+8.5 V to +16 V (wrt Pwr. Gnd.)
Current
<= 80 mA
Noise and
Ripple
DC to 1 kHz: 50 mV pk-pk
(max)
Table 2
Nominal
Scale Factor
Part Number
Rate
Input
Range
°/s
mV/°/s
°/s/V
Resolution
°/s
Voltage Range for
Full Scale Rate
VSG-E469
±50
100
10
0.013
VSG-E470
±100
50
20
0.025
VSG-E601
±200
25
40
0.05
VSG-E470-500
±500
10
100
0.13
VSG-E470-1000
±1000
5
200
0.25
±5 V
Additional scale factors available on request.
