Title:
STANDARDS FOR CALIBRATION AND METHOD FOR CALIBRATING SHAPE MEASURING INSTRUMENT
Document Type and Number:
Japanese Patent JP2023030916
Kind Code:
A
Abstract:
To provide: standards for calibration which allow calibration (magnification calibration) of a shape measuring instrument to be performed highly accurately; and a method for calibrating the shape measuring instrument.SOLUTION: Standards (M1-M3) for calibration are used for the calibration of a shape measuring instrument (10), and comprise, respectively: outer circumferential parts (S1-S3) each having a cylindrical outer circumferential surface; cut parts (D1-D3) which are notched by prescribed cut amounts each from the cylindrical outer circumferential surface; and mitigated curved surface parts (E1-E3) which are each installed so as to connect from the outer circumferential part to the cut part and constructed in a curved shape protruding to the outside of the standard for calibration.SELECTED DRAWING: Figure 3
Inventors:
MORII HIDEKI
Application Number:
JP2021136336A
Publication Date:
March 08, 2023
Filing Date:
August 24, 2021
Export Citation:
Assignee:
TOKYO SEIMITSU CO LTD
International Classes:
G01B11/24
Attorney, Agent or Firm:
Kenzo Matsuura
Kazuki Ohara
Kiyoshi Matsumura
Constitutional Matsuura
Kazuki Ohara
Kiyoshi Matsumura
Constitutional Matsuura
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