公开(公告)号：US20130174653A1

公开(公告)日：2013-07-11

申请号：US13705536

申请日：2012-12-05

Applicant: Mitutoyo Corporation

Inventor： Takeshi SAWA

IPC: G01N3/42

CPC classification number: G01N3/42 ,  G01N2203/0082 ,  G01N2203/0218

Abstract: The present invention provides a hardness tester capable of accurately detecting a point where an indenter contacts a sample in instrumented indentation testing. Prior to beginning measurement, the hardness tester defines an expected range for a value for a displacement, speed, or acceleration of an indenter during a process of approaching a sample. After measurement has begun, the hardness tester measures the value for the displacement, speed, or acceleration of the indenter during the process of approaching the sample. When the measured value is not within the expected range, the hardness tester determines that detection of a zero point has failed.

Abstract translation: 本发明提供了一种硬度计，能够精确地检测压痕在仪器压入试验中与样品接触的点。 在开始测量之前，硬度计定义了在接近样品的过程中压头的位移，速度或加速度值的预期范围。 测量开始后，硬度计测量在接近样品过程中压头的位移，速度或加速度的值。 当测量值不在预期范围内时，硬度计确定零点检测失败。

公开(公告)号：US20130105675A1

公开(公告)日：2013-05-02

申请号：US13660436

申请日：2012-10-25

Applicant: MITUTOYO CORPORATION

Inventor： Yoshiaki Kato

IPC: G01D5/347

CPC classification number: G01D5/38

Abstract: A photoelectric encoder includes a light-emitting element, a scale, a lens, a PDA, and a signal processing circuit. The signal processing circuit includes a distortion table, a distortion compensation circuit, and a position analyzing circuit. The distortion table is calculated in advance on the basis of pieces of distortion information that were obtained by a distortion simulation using design values of the optical system such as the lens. The distortion compensation circuit corrects a light/dark signal of the PDA by eliminating distortion caused by the optical system by changing the positions of the respective PDs of the PDA virtually on the basis of the distortion table and the pieces of position information of the respective PDs. The position analyzing circuit analyzes a position of the scale on the basis of the corrected light/dark signal.

Abstract translation: 光电编码器包括发光元件，刻度尺，透镜，PDA和信号处理电路。 信号处理电路包括失真表，失真补偿电路和位置分析电路。 基于通过使用诸如透镜的光学系统的设计值进行的失真模拟获得的失真信息，预先计算失真表。 失真补偿电路通过基于失真表和各个PD的位置信息来改变PDA的各个PD的位置，消除由光学系统引起的失真来校正PDA的亮/暗信号 。 位置分析电路基于校正的亮/暗信号分析刻度的位置。

公开(公告)号：US20040238728A1

公开(公告)日：2004-12-02

申请号：US10846437

申请日：2004-05-14

Applicant: MITUTOYO CORPORATION

Inventor： Kenji Kojima ,  Tomotaka Takahashi

IPC: G01D005/34

CPC classification number: G01D5/34715

Abstract: A plurality of photodiodes are disposed along a measurement axis on an optical receipt chip of a photoelectric encoder. Formed on each light acceptance surface of these photodiodes is a second optical grating which has more than one light shield portion extending in a nullynull direction. Each acceptance surface has a portion that is disposed obliquely relative to the extending direction of the light shield portion.

Abstract translation: 多个光电二极管沿着测量轴设置在光电编码器的光接收芯片上。 在这些光电二极管的每个光接受表面上形成的是具有沿“y”方向延伸的多于一个遮光部的第二光栅。 每个接受表面具有相对于遮光部的延伸方向倾斜地设置的部分。

公开(公告)号：US20040223148A1

公开(公告)日：2004-11-11

申请号：US10833007

申请日：2004-04-28

Applicant: MITUTOYO CORPORATION

Inventor： Isamu Takemura

IPC: G01J001/10

CPC classification number: G01B5/28 ,  G01B5/20

Abstract: In a calibration method for a surface texture measuring instrument which measures a surface of a workpiece and includes an arm that is supported to be swingable around a base point thereof and is provided with a contact point at an end for scanning the workpiece surface, the calibration method includes a measurement step for measuring a calibration gauge of which cross section contains a part of a substantially perfect circle, an assignment step for assigning the detection results, which are obtained in the measurement step, in an evaluation formula based on a circle equation in which the center coordinates of the calibration gauge are (xc, zc) and the radius is nullrnull, and a calibration step for calibrating each parameter based on the evaluation formula obtained in the assignment step.

Abstract translation: 在用于测量工件表面的表面纹理测量仪的校准方法中，包括支撑在其基点附近摆动的臂，并且在用于扫描工件表面的端部设置有接触点，校准 方法包括：测量步骤，用于测量横截面包含基本上完整圆的一部分的校准量规;分配步骤，用于将在测量步骤中获得的检测结果分配在基于圆形方程式的评估公式中 其中校准量规的中心坐标为（xc，zc）且半径为“r”，以及校准步骤，用于基于在分配步骤中获得的评估公式来校准每个参数。

公开(公告)号：US20040162708A1

公开(公告)日：2004-08-19

申请号：US10654431

申请日：2003-09-04

Applicant: MITUTOYO CORPORATION

Inventor： Soichi Kadowaki ,  Kozo Umeda ,  Jyota Miyakura ,  Tomonori Goto

IPC: H03F001/26

CPC classification number: G01B21/045 ,  G06T5/002

Abstract: A signal-processing method is disclosed, where, after inputting a measurement data, weighted spline formula is selected to calculate an initial value of a spline filter, weight is adjusted, a spline filter output is calculated, convergence is judged thereafter. When the weight is judged not converged, the weight is updated and the weight-adjustment and spline filter output calculation are repeated to conduct robust spline filtering on the measurement data.

Abstract translation: 公开了一种信号处理方法，其中在输入测量数据之后，选择加权样条公式来计算样条滤波器的初始值，调整权重，计算样条滤波器输出，此后判断收敛。 当重量判断不收敛时，更新重量，重复加权调整和样条滤波器输出计算，以对测量数据进行鲁棒样条滤波。

公开(公告)号：US20040136580A1

公开(公告)日：2004-07-15

申请号：US10744139

申请日：2003-12-22

Applicant: MITUTOYO CORPORATION

Inventor： Sadayuki Matsumiya ,  Masamichi Suzuki ,  Mamoru Kuwashima ,  Mamoru Yasuda

IPC: G06K009/00 ,  G06K009/36 ,  A61C005/00

CPC classification number: G01B11/24 ,  A61C9/0046 ,  G06T3/4038 ,  G06T7/30

Abstract: An image-reading apparatus has a digital camera (2) for sequentially taking image of each part of a lateral dentition surface as partial images, a distance sensor (21) for measuring a distance from the digital camera (2) to the lateral dentition surface as an imaging distance, a memory that stores the partial images and the imaging distance when the partial images are taken, an image magnification converter that converts the imaging magnification of the partial images so that the imaging magnification of all of the partial images becomes equal based on the imaging distance, and an image combiner for generating a combined image by combining more than one of the partial images.

Abstract translation: 图像读取装置具有数字照相机（2），用于顺序地将侧向齿列表面的每个部分的图像作为部分图像;距离传感器（21），用于测量从数字照相机（2）到侧面齿面的距离 作为成像距离，存储部分图像被摄取时的部分图像和成像距离的存储器，转换部分图像的成像倍率的图像放大转换器，使得所有部分图像的成像倍率基于相等 以及用于通过组合多于一个部分图像来生成组合图像的图像组合器。

公开(公告)号：US20040133300A1

公开(公告)日：2004-07-08

申请号：US10687836

申请日：2003-10-20

Applicant: MITUTOYO CORPORATION

Inventor： Masashi Tsuboi ,  Hiroshi Yamashiro

IPC: G06F019/00

CPC classification number: G01B7/012 ,  G01B7/003

Abstract: A probe driving mechanism for displacement measuring apparatuses, capable of carrying out a stable, constant speed probe feeding operation without additionally providing a motor rotation detecting rotary encoder and a tachometer generator. When an output from a scale varies in accordance with the power applied to a motor, the power applied to the motor is controlled in accordance with an output from the scale. When the variation of an output from the scale becomes small even though the same level of power continues to be applied to the motor, a judement that a probe contacts the workpiece is given, and the power applied to the motor is set smaller. When an output from the workpiece sensor varies, the power applied to the motor is controlled in accordance with one of an output from the scale and that from the workpiece sensor the speed variation of which is larger than that of the other.

Abstract translation: 一种用于位移测量装置的探针驱动机构，其能够进行稳定的恒定速度的探针馈送操作，而不另外提供电机旋转检测旋转编码器和转速计发生器。 当根据施加到电动机的功率的尺度的输出变化时，根据标尺的输出来控制施加到电动机的功率。 当即使将相同水平的功率继续施加到电动机上时，尺寸的输出的变化也变小，则给出了探头接触工件的判断，并且施加到电动机的功率被设定得较小。 当工件传感器的输出发生变化时，根据刻度尺的输出和工件传感器中的一个，其速度变化大于另一个的速度变化来控制施加到电动机的功率。

公开(公告)号：US20040107073A1

公开(公告)日：2004-06-03

申请号：US10698443

申请日：2003-11-03

Applicant: MITUTOYO CORPORATION

Inventor： Junji Sakurada ,  Tsukasa Kojima ,  Toshiyuki Tamai

IPC: G01B003/22 ,  G01B005/20 ,  G01B007/28 ,  G01B011/24 ,  G01B013/16 ,  G06F015/00 ,  G01B015/04 ,  G01B017/06 ,  G01B021/20

CPC classification number: G01B21/045 ,  G01B5/012 ,  G01B5/28

Abstract: The object of the invention is to provide a method, a program and a device that can set accurately and easily the origin of the coordinate system of a workpiece based on the result obtained by a surface texture measuring machine scanning over a feature area on the surface of the workpiece. The device comprises a data inputter for inputting data obtained by scanning a feature area including at least a feature point area and a non-feature point area of the surface of a workpiece, a feature point selector for extracting the feature points of the data by statistically processing the data inputted into the data inputter and an origin setter for setting the origin of a workpiece coordinate system relative to an origin setting target point of the workpiece based on the coordinate values of the feature point obtained by the feature point selector.

Abstract translation: 本发明的目的是提供一种方法，程序和装置，其可以基于通过表面纹理测量机在表面上的特征区域上扫描获得的结果来准确和容易地设置工件的坐标系的原点 的工件。 该装置包括数据输入器，用于输入通过扫描包括工件表面的至少特征点区域和非特征点区域的特征区域获得的数据，特征点选择器，用于通过统计学方式提取数据的特征点 处理输入到数据输入器的数据和原点设定器，用于基于由特征点选择器获得的特征点的坐标值，相对于工件的原点设定目标点设定工件坐标系的原点。

公开(公告)号：US20040094338A1

公开(公告)日：2004-05-20

申请号：US10298339

申请日：2002-11-15

Applicant: Mitutoyo Corporation

Inventor： David Skurnik

IPC: G06K011/06 ,  G08C021/00

CPC classification number: G06F3/041 ,  G01D5/24495

Abstract: A system and method for generating output signals for a position encoder is provided. The system produces an approximated position signal that is updated at a rate higher than a base rate of the measured transducer position signals. The approximated position signals may be utilized to produce quadrature outputs that are compatible with existing control systems. The measured transducer position signals are processed and/or stored by a signal processing circuit at discrete time intervals. The approximated position values are generated by a high frequency position estimation circuit. The approximated position signal is then compared by an error correction feedback loop to the measured transducer position signal and the resulting difference stored in an error register for use by the error correction feedback loop during the next discrete time interval. In one embodiment, the accuracy of the system may be further improved by utilizing a latch signal to ensure that the approximated position signal and the measured transducer position signal that are compared by the error feedback loop correspond to the same time.

Abstract translation: 提供了一种用于产生位置编码器的输出信号的系统和方法。 该系统产生以比所测量的换能器位置信号的基本速率更高的速率更新的近似位置信号。 近似位置信号可用于产生与现有控制系统兼容的正交输出。 测量的换能器位置信号由信号处理电路以离散的时间间隔进行处理和/或存储。 近似位置值由高频位置估计电路产生。 然后将近似位置信号通过误差校正反馈回路与测量的换能器位置信号进行比较，并将所得到的差值存储在错误寄存器中，以供下一个离散时间间隔期间纠错反馈回路使用。 在一个实施例中，可以通过利用锁存信号来进一步改善系统的精度，以确保通过误差反馈回路比较的近似位置信号和测量的换能器位置信号对应于同一时间。

公开(公告)号：US20040089796A1

公开(公告)日：2004-05-13

申请号：US10293784

申请日：2002-11-12

Applicant: Mitutoyo Corporation

Inventor： Andrew M. Patzwald ,  Kim W. Atherton

IPC: G01D005/34

CPC classification number: G01D5/2455 ,  G01D5/34792

Abstract: An absolute position-sensing device is usable to measure the relative position of two elements. An absolute scale includes an integrated track extending along a measuring axis of the scale. The integrated track includes a plurality of code portions interleaved with, or embedded in, a plurality of periodic portions. Each periodic portion includes a plurality of periodically-placed incremental scale elements. Each code portion includes a plurality of code elements indicative of an absolute measurement value. The code elements are arranged in code element zones along the direction perpendicular to the motion axis, and are detectable by associated variations along the direction perpendicular to the motion axis. The offset of the periodically placed elements relative to a readhead of the device is combined with the absolute measurement value to determine an absolute position.

Abstract translation: 绝对位置检测装置可用于测量两个元件的相对位置。 绝对刻度包括沿着刻度尺的测量轴延伸的集成轨道。 集成轨道包括与多个周期性部分交错或嵌入在多个周期部分中的多个代码部分。 每个周期部分包括多个周期性地放置的增量刻度元件。 每个代码部分包括指示绝对测量值的多个代码元素。 代码元素沿着垂直于运动轴线的方向被布置在代码元素区域中，并且可以沿着垂直于运动轴线的方向的相关变化来检测。 定期放置的元件相对于器件的读数头的偏移与绝对测量值相结合以确定绝对位置。