公开(公告)号：US20170093413A1

公开(公告)日：2017-03-30

申请号：US15274955

申请日：2016-09-23

Applicant: MITUTOYO CORPORATION

Inventor： Toshihiro KANEMATSU

IPC: H03M1/00

CPC classification number: H03M1/164 ,  H03M1/14

Abstract: There is provided a signal processing apparatus, which can perform measurement with a wide dynamic range and high resolution, for a measuring machine. A first analog-to-digital (AD) converter AD-converts a sensor signal into an upper digital signal. A first digital-to-analog (DA) converter DA-converts the upper digital signal into an upper analog signal. A first combining unit generates a lower analog signal by subtracting the upper analog signal from the sensor signal. An amplifier generates a magnified lower analog signal by amplifying the lower analog signal. A second AD converter AD-converts the magnified lower analog signal into a lower digital signal. A second combining unit combines the upper digital signal regarded as upper side digits with the lower digital signal regarded as lower side digits.

公开(公告)号：US20200249003A1

公开(公告)日：2020-08-06

申请号：US16778441

申请日：2020-01-31

Applicant: MITUTOYO CORPORATION

Inventor： Hideaki FUJIHARA ,  Toshihiro KANEMATSU

IPC: G01B5/008 ,  G06F3/14

Abstract: A one-dimensional measurement device includes a display; a display controller that, based on first input information, displays on the display a rough arrangement and measurement order of each of a plurality of measurable elements of a measurable object and, based on second input information, displays on the display the arrangement and measurement order of each of the plurality of measurable elements where the entire arrangement is rotated in a predetermined direction by a predetermined angle while maintaining a positional relationship of each of the measurable elements; and an input that receives input of the first input information and the second input information.

公开(公告)号：US20130238281A1

公开(公告)日：2013-09-12

申请号：US13781934

申请日：2013-03-01

Applicant: MITUTOYO CORPORATION

Inventor： Toshihiro KANEMATSU ,  Hiroomi HONDA

IPC: G01B5/28

CPC classification number: G01B5/28 ,  G01B21/042 ,  G01B21/30

Abstract: A surface texture measurement device capable of resolving errors for each entire display range, a controller for the surface texture measurement device, and a method for controlling the surface texture measurement device that includes selecting any one of the display ranges as a reference range and defining a calibration measurement value for each display range; sequentially inputting the calibration measurement values in place of the measurement values to the range amplifier corresponding to the reference range to obtain a reference display value rDATAi; inputting the calibration measurement values to the range amplifiers corresponding to each display range, then obtaining an AD-converted value ADi and a display value DATAi; computing a gain error rate ki=rDATAi/DATAi, a display resolution DIVi=DATAi/ADi, and a corrected display resolution cDIVi=DIVi×ki; and displaying the corrected display value cDIVi=DIVi×ki.

Abstract translation: 一种表面纹理测量装置，其能够分辨每个整个显示范围的误差，表面纹理测量装置的控制器和一种用于控制表面纹理测量装置的方法，包括选择任何一个显示范围作为参考范围， 每个显示范围的校准测量值; 将校准测量值代替测量值顺序地输入到与参考范围对应的范围放大器，以获得参考显示值rDATAi; 将校准测量值输入到与每个显示范围相对应的范围放大器，然后获得AD转换值ADi和显示值DATAi; 计算增益误差率ki = rDATAi / DATAi，显示分辨率DIVi = DATAi / ADi和校正显示分辨率cDIVi = DIVi×ki; 并显示校正的显示值cDIVi = DIVi×ki。

公开(公告)号：US20240328770A1

公开(公告)日：2024-10-03

申请号：US18613643

申请日：2024-03-22

Applicant: MITUTOYO CORPORATION

Inventor： Takayuki SHIMOJI ,  Hideaki FUJIHARA ,  Toshihiro KANEMATSU

IPC: G01B5/28 ,  G01R19/00

CPC classification number: G01B5/28 ,  G01R19/0038

Abstract: A detector detection device includes a detection circuit to which a detecting signal is input, via a connector of a measuring machine, from a detector connected to the connector, and a determination section that determines whether the detector is connected to the connector, in which the detection circuit includes a first ground having a first electric potential that is lower than a reference electric potential of the detector and a comparator that is electrically connected to the first ground, receives the detecting signal from the connector, and compares an input voltage and a predetermined threshold voltage, and the determination section determines based 10 on a binary signal output from the comparator whether the detector is connected to the connector.

公开(公告)号：US20180299247A1

公开(公告)日：2018-10-18

申请号：US15955078

申请日：2018-04-17

Applicant: MITUTOYO CORPORATION

Inventor： Hiroomi HONDA ,  Toshihiro KANEMATSU

IPC: G01B5/20 ,  G01B5/00 ,  G01B5/008 ,  G01B5/06 ,  G01G5/02

Abstract: In a control method of a drive stage device, a stage is floated on an air bearing, then a height of the stage while floating on the air bearing is measured as a first height. A work piece is placed on the stage and a height of the stage while holding the work piece is measured as a second height. A difference between the first height and the second height is calculated as a drop amount, and a weight of the work piece is calculated based on the drop amount. An upper limit speed of one of rotational drive and horizontal movement of the stage is determined based on the calculated work piece weight. A speed of the one of the rotational drive and the horizontal movement of the stage is controlled so as to not exceed the upper limit speed.

公开(公告)号：US20170089741A1

公开(公告)日：2017-03-30

申请号：US15270688

申请日：2016-09-20

Applicant: MITUTOYO CORPORATION

Inventor： Chihiro TAKAHASHI ,  Toshihiro KANEMATSU

IPC: G01D18/00

CPC classification number: G01D18/00 ,  G01D5/2225 ,  G01D5/2448

Abstract: There is provided a signal processing circuit, which improves a signal SN ratio, for a measuring machine. A sensor uses two or more reference signals processed so as to have a mutual predetermined phase difference. The signal processing circuit includes a phase correcting circuit which removes an offset due to a phase shift between the two or more reference signals. The phase correcting circuit includes an offset detecting unit which adds the two or more reference signals and extracts the offset, and a correction processing unit which removes the offset from a sensor signal.

公开(公告)号：US20200041246A1

公开(公告)日：2020-02-06

申请号：US16527438

申请日：2019-07-31

Applicant: MITUTOYO CORPORATION

Inventor： Toshihiro KANEMATSU

IPC: G01B5/00 ,  G01B5/20

Abstract: A form measuring apparatus that is provided with a form measuring device that includes a detection device detecting a position on a surface of an object, and a feeding mechanism that moves the form measuring device in an axis direction. The feeding mechanism includes a drive shaft provided so as to be rotatable around an axis; a traction nut that is provided so as to hold the drive shaft from a direction orthogonal to an axis line of the drive shaft, and that also can switch between a frictional contacting state frictionally contacting the drive shaft and a separation state separated from the drive shaft; and a bracket coupling the traction nut and the form measuring device. The bracket is provided with a motor that includes a rotation shaft that is inclined with respect to the axis line, and the motor rotates the drive shaft.