How to measure low velocity

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How to measure low velocity

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06-04-2005, 08:23

Chris Hibner Chris Hibner is offline

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Re: How to measure low velocity

Quote:

Originally Posted by nobtiba

ADXRS150's resolution is 0.004 degree/s but when I rotate the table by hand slow enough (still can observe by eyes) the gyro seems not to reaction. So how can I do?

How are you measuring the signal? Are you using and oscilloscope, or are you using the FIRST controller to integrate a heading?

If you are using the FIRST controller, the resolution is less than said. The ADXRS150 measures approximately +/-150 deg/s, which means it measures a total range of 300 deg/s. The FRC has a 10-bit A/D which means you have 1024 A/D counts. Therefore, your resolution is 300/1024 = 0.293 deg/s.

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