Development of an Optical Hole-Diameter Measuring Instrument: Optical Analysis, Fundamental Experiment, Trial Manufacture and Performance Test

Hiromichi Onikura, Yoshiharu Kuwabara, Taizo Nakamura, Takao Sajima, Yoshiro Imaseki, Akio Katsuki, Seiji Yamada

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

An optical hole-diameter measuring instrument has been developed. The instrument, which consists of two laser diodes, one photo sensitive detector, two condenser lenses and some mirrors, is intended to measure, based on trigonometry, the distances to the hole wall on two sides alternately. The optical, fundamental analysis and experiment showed that it was possible to measure the distances to the object having not only a mirror-like plane surface but also a rough, cylindrical surface such as a drilled one. Using the instrument, which was manufactured on trial, it was found that the width between block gages and the hole diameter of a ring gage could be measured within the accuracy of 10μm and that it was influenced by the position of the measuring probe and the inclination of the measured object. The deviation from the desired values may be attributed to the impropriety of calibration, the misalignment of irradiation of two laser beams and the nonlinearity of optical and electrical elements.

Original languageEnglish
Pages (from-to)248-252
Number of pages5
JournalSeimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering
Volume61
Issue number2
DOIs
Publication statusPublished - Jan 1 1995

Fingerprint

Optical instruments
Ring gages
Gage blocks
Experiments
Laser beams
Semiconductor lasers
Lenses
Mirrors
Irradiation
Calibration
Detectors

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

Development of an Optical Hole-Diameter Measuring Instrument : Optical Analysis, Fundamental Experiment, Trial Manufacture and Performance Test. / Onikura, Hiromichi; Kuwabara, Yoshiharu; Nakamura, Taizo; Sajima, Takao; Imaseki, Yoshiro; Katsuki, Akio; Yamada, Seiji.

In: Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering, Vol. 61, No. 2, 01.01.1995, p. 248-252.

Research output: Contribution to journalArticle

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