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公开(公告)号：US20190145753A1
公开(公告)日：2019-05-16
申请号：US16179227
申请日：2018-11-02
Applicant: MITUTOYO CORPORATION
Inventor： Yoshiyuki OMORI
Abstract: A roundness measuring device includes an annular ring, and a plurality of displacement sensors (comparative length measuring devices) provided on the ring at predetermined intervals. The displacement sensors are arranged such that lines along which measurement axes of the displacement sensors extend intersect at a single point.
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公开(公告)号：US10288402B2
公开(公告)日：2019-05-14
申请号：US15622509
申请日：2017-06-14
Applicant: MITUTOYO CORPORATION
Inventor： Seiichi Otsubo
Abstract: A coordinate measurement machine includes a column that can move relative to a placement surface on which a workpiece is placed, a guide part that is provided on the placement surface, the guide part guiding the column, a scale of a linear encoder that is supported on a side surface of the guide part, and detectors that are provided on the column, the detectors detecting a relative displacement with respect to the scale. The detectors detect a displacement of the column in each of a moving direction and a vertical direction. A coordinate measurement machine further includes a deformation amount acquisition part that acquires an amount of deformation of the guide part relative to the scale on the basis of detection results of the detectors.
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公开(公告)号：USD847675S1
公开(公告)日：2019-05-07
申请号：US29633024
申请日：2018-01-11
Applicant: MITUTOYO CORPORATION
Designer： Sadayuki Matsumiya , Yoshiro Asano , Masaru Kawazoe , Fumihiko Koshimizu , Shigeru Ohtani , Yu Sugai
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144.发明授权公开(公告)号：US10282837B2
公开(公告)日：2019-05-07
申请号：US15250052
申请日：2016-08-29
Applicant: MITUTOYO CORPORATION
Inventor： Masaki Kurihara
Abstract: An image measuring apparatus according to an embodiment of the present invention comprises: an imaging device that images a workpiece to acquire an image of this workpiece; and a processing device that performs measurement of the workpiece based on this image and outputs a measurement result. Moreover, the processing device sets a region in the image, sets a plurality of first points along a contour line of this region, sequentially moves these plurality of first points so that the plurality of first points approximate to the contour line included in the image, acquires the moved plurality of first points as a plurality of second points, and calculates the measurement result based on these plurality of second points.
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公开(公告)号：US20190120664A1
公开(公告)日：2019-04-25
申请号：US16166711
申请日：2018-10-22
Applicant: MITUTOYO CORPORATION
Inventor： Shinsaku ABE
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.
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Patent Agency Ranking
公开(公告)号：US10260853B2
公开(公告)日：2019-04-16
申请号：US15483090
申请日：2017-04-10
Applicant: MITUTOYO CORPORATION
Inventor： Yuji Ooura
Abstract: A linear gage includes a spindle, a guide cylinder surrounding a portion of the spindle and configured to guide the spindle to move forward and rearward in an axis line direction, and a guide slit portion having a guide slit extending parallel to the axis line of the guide cylinder, with a gap provided between the guide slit and an outer surface of the guide cylinder. An attitude adjustment pin extends into the guide slit and is fixed to a side surface of the spindle. The attitude adjustment pin is an eccentric pin.
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公开(公告)号：US10254137B2
公开(公告)日：2019-04-09
申请号：US15372578
申请日：2016-12-08
Applicant: Mitutoyo Corporation
Inventor： Hirokazu Kobayashi
IPC: G01D5/347
Abstract: A photoelectric encoder includes light receiving units configured to output a plurality of photocurrent signals obtained by receiving light emitted from a light emission unit, via a scale, a signal conversion unit configured to output a conversion signal by converting the plurality of photocurrent signals, a position calculation unit configured to calculate an absolute position based on the conversion signal, and a microcomputer configured to perform drive control of the light emission unit, the signal conversion unit, and the position calculation unit. The microcomputer intermittently drives at least either one of the light emission unit and the signal conversion unit, and causes the position calculation unit to execute calculation according to a timing of intermit driving.
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公开(公告)号：US10247610B2
公开(公告)日：2019-04-02
申请号：US15726276
申请日：2017-10-05
Applicant: Mitutoyo Corporation
Inventor： Koji Kubo
Abstract: A chromatic confocal sensor includes: a light source portion that emits a plurality of light beams having different wavelengths; a plurality of optical heads that converge the plurality of light beams emitted from the light source portion at different focal positions and emit measurement light reflected by a measurement point at the focal positions; a spectrometer including a line sensor, and an optical system that includes a diffraction grating that diffracts a plurality of measurement light beams emitted from the plurality of optical heads, and emits the plurality of measurement light beams diffracted by the diffraction grating to a plurality of different light-receiving areas of the line sensor; and a position calculation portion that calculates a position of a plurality of measurement points as a measurement target of the plurality of optical heads based on a light-receiving position of the plurality of light-receiving areas of the line sensor.
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公开(公告)号：US20190086232A1
公开(公告)日：2019-03-21
申请号：US16138229
申请日：2018-09-21
Applicant: Mitutoyo Corporation
Inventor： Hirokazu KOBAYASHI , Shun MUGIKURA
Abstract: There is provided a measuring device that suppresses flickering of display values displayed on a display and, at the same time, improves response of the measuring device. A measuring device includes a storage that stores information about the measuring device, control circuitry that calculates measurement results, and a display that displays the measurement results calculated by the control circuitry. The control circuitry determines whether or not filtering for suppression of a variation in display values Pn displayed on the display is to be executed and executes the filtering in response to the determination that the filtering is to be executed.
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公开(公告)号：US20190078866A1
公开(公告)日：2019-03-14
申请号：US16123970
申请日：2018-09-06
Applicant: Mitutoyo Corporation
Inventor： Takashi Noda
IPC: G01B5/008
Abstract: There is provide a method for controlling a shape measuring apparatus that synchronize an acceleration/deceleration changing timing of a velocity pattern with a control sampling cycle, and prevents a control lag.Based on a shape of a movement path set based on preliminarily-obtained shape data of an object to be measured, a velocity pattern for a probe to move along the movement path.It is determined whether a velocity changing timing of the velocity pattern is synchronized with a control sampling cycle of a shape measuring apparatus.When the velocity changing timing of the velocity pattern is not synchronized with the control sampling cycle, the velocity pattern is corrected such that the velocity changing timing of the velocity pattern is synchronized with the control sampling cycle of the shape measuring apparatus.
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