Title:
TEMPERATURE CORRECTION UNIT FOR COORDINATE MEASURING SYSTEM
Document Type and Number:
Japanese Patent JP2853500
Kind Code:
B
Abstract:
PURPOSE: To simplify the structure by providing a coordinate measuring system with a temperature correction unit and measuring the length thereof thereby determining a temperature correction coefficient.
CONSTITUTION: A temperature correction unit 24 is disposed within the measuring range of a three-dimensional measuring system 10 with the columnar body and tubular body of the unit 24 being positioned substantially in parallel with the axes of the coordinates of the system 10. A control section 36 is prestored with reference lengths of the columnar body and tubular body at a reference temperature and coefficient of thermal expansion of the tubular body. The control section 36 calculates a temperature correction coefficient at the time of measurement based on prestored data and the lengths of the columnar body and the tubular body measured by a probe while furthermore performs temperature correction of the system 10 and a work. This constitution realizes simplification of the structure while reducing the cost.
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Inventors:
Nakamata, Toru
Fukui, Toyoji
Fukui, Toyoji
Application Number:
JP1993000014653
Publication Date:
November 20, 1998
Filing Date:
February 01, 1993
Export Citation:
Assignee:
TOKYO SEIMITSU CO LTD
International Classes:
G01B5/20; G01B5/008; G01B5/207; G01B21/20; G01K5/56; G01B5/20; G01B5/008; G01B21/20; G01K5/00; (IPC1-7): G01B5/20; G01B21/20; G01K5/56
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