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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
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.
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公开(公告)号：US09548689B2
公开(公告)日：2017-01-17
申请号：US14193743
申请日：2014-02-28
Applicant: MITUTOYO CORPORATION
Inventor： Yo Terashita , Tomohiro Usui
Abstract: A control apparatus having high control performance is provided. A control apparatus according to an aspect of the present invention is a control apparatus that controls a DC motor, including a first current detection system that detects a current value of the DC motor, a second current detection system that detects a current value of the DC motor, and a control unit that controls the DC motor based on a signal indicating a current value input from the first or second current detection system, in which the second current detection system includes an amplifier.
Abstract translation: 提供了具有高控制性能的控制装置。 根据本发明的一个方面的控制装置是一种控制装置，其控制包括检测直流电动机的当前值的第一电流检测系统的直流电动机，检测直流电流的当前值的第二电流检测系统 电动机和控制单元，其基于指示从第一或第二电流检测系统输入的电流值的信号来控制DC电动机，其中第二电流检测系统包括放大器。
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公开(公告)号：US11549794B2
公开(公告)日：2023-01-10
申请号：US17391428
申请日：2021-08-02
Applicant: MITUTOYO CORPORATION
Inventor： Hiroshi Kamitani , Shota Sakakibara , Yo Terashita
Abstract: A main reference point PM is provided to a base portion of a shape measuring apparatus including a rotary table. An origin-point relative-value registration includes measuring a main reference point with a probe to acquire a coordinate value of the main reference point and registering as a calibration-reference-point coordinate value Pp, registering a rotation center point of the rotary table as a calibration-rotation-center coordinate value Rp, and calculating a relative coordinate value of the calibration-rotation-center coordinate value Rp with respect to the calibration-reference-point coordinate value Pp and registering as a rotary-table origin-point relative coordinate value ΔD1. A rotary-table origin-point re-registration step includes the steps of measuring the main reference point with the probe to acquire a coordinate value the main reference point and registering as a current-reference-point coordinate value Pc, and adding the rotary-table origin-point relative coordinate value ΔD1 to the current-reference-point coordinate value Pc to calculate a rotary-table origin-point current coordinate value Rc.
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