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Accelerometer Interface Module Operation Manual
9.
Connect the input to pin C and connect the multimeter to the +VELOCITY
terminal as shown above.
10.
Adjust the function generator to output a sine wave with the frequency
and amplitude based on the filter corner frequencies and accelerometer charge
sensitivity as shown in the table below:
Corner frequency
High Pass Corner
(Hz)
25
100
40
11.
Measure the +VELOCITY output with the multimeter. It should read 0.3535
Vrms ± 18.0 mVrms. If it does not then the interface module should be replaced.
22
Low Pass Corner
(Hz)
350
560
300
Function Generator Setting
Frequency
Amplitude
(Hz)
(mVrms)
93.5
53.8 (50 pC transducer)
236.6
136.2 (50 pC transducer)
109.5
126.0 (100 pC transducer)
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