Mitutoyo Corporation

Junji Sakurada

Tsukasa Kojima

Toshiyuki Tamai

Sadayuki Matsumiya

Takafumi Kano

Kazushi Noguchi

When detecting a tolerance of a shape of a measured object having a complicated shape that makes it difficult to perform a continued measurement, a plurality of partial measurement data that are set are retrieved. Next, a reference position is set from first partial measurement data. Then, each of the partial measurement data is combined into one data using the reference position. Further, the tolerance is calculated using the combined data.

Tolerance detection method and tolerance detection device for shape measuring apparatus

A circular shape characteristic measuring device includes a shape measuring device that obtains measured data by measuring a profile shape of a circular cross-section of an object to be measured having the circular cross-section, and a computation device that calculates a circular shape characteristic of the circular cross-section. The computation device includes: an input device configured to input one of three parameters including a cutoff value of the filtering process, a minimum number of samples, and a ratio of a radius of the circular cross-section to a radius of a gauge head; a parameter table that stores a relationship between the three parameters, and based on the input parameter, determines the other two parameters; and a sampler configured to perform sampling of the measured data based on the minimum number of samples.

Method of measuring a circular shape characteristic and circular shape characteristic measuring device and program

A measurement support apparatus comprises a shape definition data input section, a contour shape generator, a measurement part program input section, an analyzer, a synthesizer, and a display unit. The shape definition data input section is used for entering shape definition data for an object to be measured. The contour shape generates a contour shape based on the shape definition data. The measurement part program input section is used for entering a measurement part program. The analyzer analyzes the measurement part program and outputs the analysis results. The synthesizer synthesizes the analysis results with the contour shape. The display unit displays the synthesis image.

Method and apparatus for supporting measurement of object to be measured

A surface texture measuring instrument has a rotary table on which a workpiece is rotatably mounted, a Z-axis slider capable of moving in a Z-axis direction parallel to a rotation axis of the rotary table, an X-axis slider that is held by the Z-axis slider and is advanceable and retractable in an X-axis direction orthogonal to the rotation axis, a first arm that is held by the X-axis slider and is rotatable around a center line parallel to the X-axis, a second arm that is held by the first arm and is advanceable and retractable in a direction orthogonal to the X-axis, and a detector held by the second arm to measure a surface texture of the workpiece.

Width-measuring method and surface texture measuring instrument

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.

Workpiece coordinate system origin setting method, workpiece coordinate system origin setting program and workpiece coordinate system origin setting device of a surface property measuring machine

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Sapporo, Japan

Junji Sakurada