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

IPC: H02P7/06 ,  H02P23/00

CPC classification number: H02P7/06 ,  H02P23/20

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。

公开(公告)号：US09335143B2

公开(公告)日：2016-05-10

申请号：US14464224

申请日：2014-08-20

Applicant: MITUTOYO CORPORATION

Inventor： Takashi Noda ,  Hiroshi Kamitani ,  Tomohiro Usui

IPC: G01B5/012 ,  G01C25/00 ,  G01B21/04 ,  G01B5/008

CPC classification number: G01B5/012 ,  G01B5/008 ,  G01B21/042 ,  G01C25/00

Abstract: A form measuring apparatus includes a probe for measuring a measured object; a rotary table on which the measured object is placed; and a coordinate system calculator calculating coordinate axes configuring a coordinate system for the rotary table. The coordinate system calculator calculates, based on a position of a master ball fixated to the rotary table, a center of a circle traced by the master ball when the rotary table is rotated; calculates a rotary table coordinate system having the center of the circle as an origin point; and corrects coordinates of the origin point based on a calibrated diameter value of a gauge fixated to the rotary table, a first diameter value of the gauge measured by a first measurement in which the probe approaches the gauge in a first direction, and a second diameter value of the gauge measured by a second measurement.

Abstract translation: 一种形状测量装置，包括用于测量被测物体的探针; 放置测量对象的旋转台; 以及坐标系计算器，计算构成旋转台的坐标系的坐标轴。 坐标系计算器基于旋转台上固定的主球的位置，计算旋转台旋转时由主球跟踪的圆的中心; 计算以圆的中心为起点的旋转台坐标系; 并且基于固定到所述旋转台的所述校准直径值来校正所述原点的坐标，所述量规的第一直径值是通过所述探针在第一测量中测量的，其中所述探针在第一方向上接近所述量规，并且所述第二直径 通过第二次测量测量的量规的值。

公开(公告)号：US20190285408A1

公开(公告)日：2019-09-19

申请号：US16352336

申请日：2019-03-13

Applicant: Mitutoyo Corporation

Inventor： Kanae Kobayashi ,  Tomohiro Usui ,  Shingo Kiyotani ,  Tatsuya Terauchi

IPC: G01B21/04

Abstract: A base of a measurement apparatus in which decrease in strength can be prevented while reducing weight is achieved. A base (10) of a three-dimensional measurement apparatus (1) configured to measure a workpiece (W) with a probe (30) includes a placement unit (12) on which the workpiece (W) is placed, and a guiding unit (14) provided on a side surface (12e) side of the placement unit (12), and configured to guide a column (22) supporting the probe (30), movable in the movement direction. A guiding unit one end (14c) and a guiding unit other end (14d) of the guiding unit (14) in the movement direction extend out of a placement unit one end (12c) and a placement unit other end (12d) of the placement unit (12) in the movement direction.

公开(公告)号：US20190277615A1

公开(公告)日：2019-09-12

申请号：US16294364

申请日：2019-03-06

Applicant: Mitutoyo Corporation

Inventor： Shingo Kiyotani ,  Kanae Kobayashi ,  Tomohiro Usui ,  Tatsuya Terauchi

IPC: G01B5/012

Abstract: A measurement apparatus includes a probe that measures a workpiece; a moving body that moves upon receiving a driving force from a drive part while supporting the probe; a position detection part that detects a position of a moving body when the probe measures the workpiece while the moving body is moving; a displacement acquisition part that acquires an amount of displacement of the probe when the moving body moves on the basis of a detection result of a detection sensor; and a measurement value acquisition part that acquires a measurement value of the workpiece on the basis of the position of the moving body detected by the position detection part and the amount of displacement of the probe acquired by the displacement acquisition part.