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Unread 22-04-2005, 05:37
nobtiba nobtiba is offline
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Re: How to measure low velocity

Now I'm using an op amp integrator (integration circuit using LM324) to integrate angular rate. The output of the integrator (angular, in theory) is fed into ADC0 channel.
When I fed square wave into input, the out put is triangular. That's seems good. But when I fed the rate out (the output of gyro) into input, the out put observed in oscilloscope is zero when gyro not moved. When gyro move, the out put observed in oscilloscope sometime increase suddenly.
The capacitor and resistor is 0.001uF and 100kOhm (reference: http://www.physics.ucdavis.edu/Class.../Lab02_rev.pdf)
Will this integration circuit is suit for my purpose?