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Unread 17-04-2005, 10:57
nobtiba nobtiba is offline
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Re: How to measure low velocity

Quote:
Originally Posted by Chris Hibner
First, about the laser: You should have no trouble getting the laser pointer back to your point using the ADXR150, a 10-bit A/D, and a PID control loop. We have been able to have great accuracy with the ADXR300 with a 10-bit A/D. The key is to have a fast-enough sample rate (< 1 ms).
To have fast enough sample rate, what I have to change ? And how to get the pointer back to the point? Is this using angular value? If this is, so how to take the integration ?
Can you tell me more detail, please !

Last edited by nobtiba : 17-04-2005 at 10:59.