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Title:
SPINDLE ROTATION SPEED CAPTURING METHOD FOR MAGNETOELECTRIC SINGLE-SPINDLE DETECTION SYSTEM, AND RELATED APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/128626
Kind Code:
A1
Abstract:
Disclosed are a spindle rotation speed capturing method for a magnetoelectric single-spindle detection system, and a related apparatus. The capturing method comprises: continuously performing detection on an edge signal of each input channel, and every time the edge signal undergoes hopping, storing a count value of a timer in a register corresponding to the input channel (S101); taking the case of a rising edge or a falling edge continuously occurring in the edge signal N times as a sliding window with a width of N, and reading, from the corresponding register, a first count value of the timer when two instances of hopping of the same polarity, the interval between which is L, in the current sliding window occurs, wherein N ≥ 2 and 1 ≤ L ≤ N - 1 (S102); and obtaining a first count increment according to the first count value, calculating a spindle rotation speed according to the first count increment, and with continuous sliding of the sliding window, calculating a spindle rotation speed captured by each channel in an online scroll mode (S103). By means of the capturing method, a jitter phenomenon in the process of spindle rotation speed capturing can be effectively reduced, the accuracy of spindle rotation speed capturing is guaranteed, and the technical defects of existing delay de-jitter methods can be effectively overcome.

Inventors:
ZHANG JUNHUI (CN)
ZHANG PEIZHONG (CN)
WANG JUN (CN)
LIAO YUNQING (CN)
CHEN DAPENG (CN)
Application Number:
PCT/CN2020/081634
Publication Date:
July 01, 2021
Filing Date:
March 27, 2020
Export Citation:
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Assignee:
WUXI INNOVATION CENTER CO LTD (CN)
International Classes:
G01P3/48
Foreign References:
CN1975435A2007-06-06
CN109782013A2019-05-21
CN103558454A2014-02-05
CN101029900A2007-09-05
CN105305932A2016-02-03
CN102082535A2011-06-01
CN106093456A2016-11-09
CN103825298A2014-05-28
CN110579618A2019-12-17
US20030061000A12003-03-27
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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