公开(公告)号：US11274945B2

公开(公告)日：2022-03-15

申请号：US16885922

申请日：2020-05-28

Applicant: MITUTOYO CORPORATION

Inventor： Yo Terashita ,  Seiko Kunihiro ,  Hiroshi Kamitani ,  Mitsuru Fukuda

IPC: G01D5/34 ,  G01D5/347

Abstract: A coordinate measuring machine including a surface plate; a probe moving body; an INC pattern and ABS pattern along a moving direction of the probe moving body; an INC detector that outputs a plurality of waveform signals in accordance with the moving amount based on the INC pattern; an ABS detector that outputs an absolute position signal of the probe moving body based on the ABS pattern in response to a request signal; and a control device that has a INC counting portion that counts the waveform signals outputted by the INC detector; a position information obtaining portion that reads a counted value at a timing when a work is detected by a probe; and a presetting portion that emits the request signal to the ABS detector to obtain the absolute position signal, and presets the counting portion to this absolute position signal.