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Unread 21-01-2003, 22:57
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Al Skierkiewicz Al Skierkiewicz is offline
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The documentation on the gyro and interface circuitry includes a filter. If you read carefully and follow the circuit, you will see the recommendation of a 47HZ high pass filter and a 185 HZ low pass filter is part of the interface amplifier. In the car example it is mentioned that the gyro does exhibit some output from the up down motions of the vehicle without these filters in place. Still filters are chosen for specific applications, a head mounted sensor for interactive game play may require a 0.1Hz to 10Hz filter to eliminate small high frequency head movements from affecting the needed head turning data. (from BEI/Systron data)
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