公开(公告)号：US20210132194A1

公开(公告)日：2021-05-06

申请号：US16669895

申请日：2019-10-31

Applicant: Mitutoyo Corporation

Inventor： Pavel Ivanovich Nagornykh

IPC: G01S7/481 ,  G02B7/04

Abstract: A chromatic point sensor (CPS) optical pen provides a signal usable to measure a distance to a surface, and includes an axial chromatic aberration portion arranged to receive source radiation from an aperture, output it toward the surface as a focused measurement beam having axial chromatic dispersion, receive reflected radiation from the surface and focus it proximate to the aperture. The axial chromatic aberration portion includes a first axially dispersive focusing element that receives the source radiation and focuses it at a first focal region, a second axially dispersive focusing element that receives the radiation from the first focal region and focuses it at a second focal region, and a third axially dispersive focusing element that receives the radiation from the second focal region and outputs the measurement beam. Lengths between the first , second and third axially dispersive focusing elements are adjustable (i.e., resulting in an adjustable range).

公开(公告)号：US10990075B2

公开(公告)日：2021-04-27

申请号：US15277141

申请日：2016-09-27

Applicant: Mitutoyo Corporation ,  Mitutoyo Europe GmbH

Inventor： Frank Uwe Madsen ,  Samuel Wu ,  Eric Yeh-Wei Tseo ,  Tobias Friedrich

IPC: G05B19/401 ,  G01B21/04

Abstract: A system is provided for programming workpiece feature inspection operations for a coordinate measuring machine. The system includes a computer-aided design (CAD) file processing portion, a geometric relationship analyzer, an inspection motion path generation portion, and a user interface including an editable plan representation of a current workpiece feature inspection plan, a workpiece inspection program simulation portion configured to display a 3D view including geometric features and inspection operation representations, and a context sensitive menu portion. The context sensitive menu portion displays a context sensitive relational command menu that indicates a valid set of relational commands including relational feature or relational measurement commands operable to define a corresponding constructed feature or corresponding relational measurement operation to be included in the current workpiece feature inspection plan. The valid set of relational commands is determined based on a concurrently selected geometric feature set including at least two geometric features concurrently selected and indicated in the user interface.

公开(公告)号：US20210117020A1

公开(公告)日：2021-04-22

申请号：US17135672

申请日：2020-12-28

Applicant: Mitutoyo Corporation

Inventor： Christopher Richard Hamner

IPC: G06F3/0354 ,  G06F3/041 ,  G01B7/012

Abstract: An inductive position detector for stylus position measurement in a scanning probe comprises a coil board configuration located along a central axis in the probe. The coil board configuration includes a field generating coil configuration and top and bottom axial and rotary sensing coil configurations. The field generating coil configuration generates a changing magnetic flux, and coil signals indicate conductive disruptor element and/or stylus positions. At least one misalignment compensation element is configured to reduce a signal offset that results from a misalignment of at least one coil of the coil board configuration (e.g., the coil board configuration may comprise a printed circuit board with a plurality of layers in which the coils are located and the misalignment of the at least one coil may result from a registration error, such as within manufacturing tolerances, in a layer to layer registration as part of a fabrication process).

公开(公告)号：US20210102796A1

公开(公告)日：2021-04-08

申请号：US17063533

申请日：2020-10-05

Applicant: MITUTOYO CORPORATION

Inventor： Masaki Matsushita ,  Satoshi Adachi

IPC: G01B7/14 ,  G01D5/241

Abstract: There is provided a displacement measuring device that minimize unnecessary power consumption and improves power efficiency.
A displacement measuring device includes a main scale and a detection head that is provided in such a manner as to be relatively displaceable to the main scale and outputs a periodic signal having a phase to be changed according to relative displacement to the main scale.
The detection head outputs, as the periodic signal, a coarse scale signal having a coarse period and a fine scale signal having a fine period. A coarse phase detector calculates, from two pieces of phase information acquired from the coarse scale signal, the average phase of the coarse scale signal. A fine phase detector calculates, from four pieces of phase information acquired from the fine scale signal, the average phase of the fine scale signal. The coarse phase detector calculates the average phase of the coarse scale signal from the two pieces of phase information and, then, stops operating without the completion of the operation of the fine phase detector.

公开(公告)号：US20210063139A1

公开(公告)日：2021-03-04

申请号：US16990269

申请日：2020-08-11

Applicant: MITUTOYO CORPORATION

Inventor： Masayuki NARA

IPC: G01B11/00 ,  G01N21/17

Abstract: An inspection method, correction method, and inspection device that include measuring a first spatial position where laser light is emitted at a first region and measuring a first strike position where the inspection device is struck by the laser light in the first region, the measurements being performed by emitting the laser light at the first region of the inspection device; measuring a second spatial position where the laser light is emitted at a second region and measuring a second strike position where the inspection device is struck by the laser light in the second region, the measurements being performed by emitting the laser light at the second region of the inspection device; and comparing measurement results for the first spatial position and the second spatial position with measurement results for the first strike position and the second strike position.

公开(公告)号：US10914661B2

公开(公告)日：2021-02-09

申请号：US15963308

申请日：2018-04-26

Applicant: MITUTOYO CORPORATION

Inventor： Ryunosuke Yano ,  Masanobu Kataoka

IPC: G01N3/42

Abstract: A hardness tester includes an indenter, an arm and a driver which loads a test force onto the indenter and press the indenter against a sample, a spring displacement amount sensor detecting a value for the test force loaded onto the indenter, and a controller. In a state where a predetermined test force (total test force) is loaded onto the indenter by the driver, when the value of the test force detected by the spring displacement amount sensor exceeds a predefined allowable margin relative to the predetermined test force, the controller executes predetermined processes, including an interrupt process interrupting the test currently being executed and a notification process notifying a user that the value of the test force exceeded the allowable margin during execution of the test.

公开(公告)号：US10907948B2

公开(公告)日：2021-02-02

申请号：US16713346

申请日：2019-12-13

Applicant: MITUTOYO CORPORATION

Inventor： Shuji Hayashida ,  Shozaburo Tsuji

IPC: G01B5/00 ,  F16C29/04

Abstract: The measurement apparatus includes an outer cylinder, a shaft body longitudinally movable on the inner surface side of the outer cylinder, a plurality of bearing balls disposed between an inner surface of the outer cylinder and an outer surface of the shaft body, and a measurement part that measures a relative position between the outer cylinder and the shaft body, and a first density of the bearing balls in a first area having a first length shorter than a total length of the outer cylinder in a longitudinal direction from one end of the outer cylinder is larger than a second density of the bearing balls in a second area having a second length shorter than the total length of the outer cylinder centered on a center position in the longitudinal direction of the outer cylinder.

公开(公告)号：US10890443B2

公开(公告)日：2021-01-12

申请号：US16438912

申请日：2019-06-12

Applicant: Mitutoyo Corporation

Inventor： Shinsaku Abe ,  Hideyuki Kusanagi

IPC: G01B11/27 ,  G06T7/70 ,  G06K9/00

Abstract: A rotary table including a placement surface with an object; a rotary base rotating the rotary table; a detector detecting displacement of a peripheral surface of the object; an angle adjustment mechanism adjusting an inclination angle of the rotary table; a position adjustment mechanism adjusting a position of the rotary table; a video acquisition unit acquiring a video of the rotary base; a display unit displaying an image based on the video; a position recognition unit recognizing images of the rotary table, rotary base, and object on the display unit and recognizing positions of the rotary table, rotary base, and object in a display space of the images; and a display control unit performing control of displaying a guide in a superimposing manner on the image on the display unit on a basis of the positions of the rotary table, rotary base, and object recognized by the position recognition unit.

公开(公告)号：US10883862B2

公开(公告)日：2021-01-05

申请号：US16166711

申请日：2018-10-22

Applicant: MITUTOYO CORPORATION

Inventor： Shinsaku Abe

IPC: G06K9/00 ,  G01D5/39 ,  G02B27/01 ,  G01D21/00 ,  G06F3/16

Abstract: A measurement-data collecting apparatus configured to read a measurement value from a measurement result displayed on a measurement tool and easily collect measurement data irrespective of whether the measurement tool is an analog measurement tool or a digital measurement tool is provided. The measurement-data collecting apparatus of the present invention includes an image capturing unit configured to capture image of an exterior view of a target measurement tool on which a measurement result is displayed and a measurement-value reading unit configured to read a measurement value from an exterior view image of the target measurement tool imaged by the image capturing unit.

公开(公告)号：US10859376B2

公开(公告)日：2020-12-08

申请号：US15435924

申请日：2017-02-17

Applicant: MITUTOYO CORPORATION

Inventor： Yuji Kudo

IPC: G01B21/20 ,  G01B11/06 ,  G01B5/00 ,  G01B21/04 ,  G01B11/24 ,  G01B5/12 ,  G01B5/06 ,  G01B11/12 ,  G01B11/30 ,  G01M15/04

Abstract: Provided is an information processing apparatus including: an input unit into which shape data of a surface to be measured including a plurality of recesses is input; and a setting unit that detects each of the plurality of recesses on the basis of the input shape data and sets, for the detected recess, a region to be removed including the recess.