Title: Method for measuring rotary shaft rotating speed by sliding time window method
Application Number: 200610125106 Application Date: 2006.11.23
Publication Number: 1975435 Publication Date: 2007.06.06
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01P3/481;G01P3/44;G01D5/244
Applicant(s) Name: Dongfeng Auto Co., Ltd. Address:
Inventor(s) Name: Dong Xionghe;Zhou Jiemin;Yu Jianhua
Attorney & Agent: liuzhi ju
Abstract:
    The invention provides a method to measure the revolving shaft speed by the sliding time window which is set the magnetoelectricity sensor or the Holtz sensor. The pulse chain is from the sensor signal after the signal adjusting circuit. It computes the time or number of the pulse chain to get the axis speed. The invention defines the start and the finish points of the time window by the sliding time window, it records pulse number and the accumulating time of a timely time window to measure the speed precisely and the recent pulse number and the time recorded by the intermit function is the initial value. So it can solve the problem of the quick and precision for measuring the speed.
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