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15 December 1978 Optical Profile Transducer
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Abstract
A noncontacting optical transducer, which measures the profile of machined surfaces, was constructed and tested. The profile transducer consists of a microscope objective, a point-source illuminator and two photo-detectors. The dynamic range of the instrument is typically 500 microinches with an accuracy of better than 10 microinches. The output of this transducer is a profile signal along a line on the surface under examination. The profile of a machined surface obtained by the optical-transducer correlates very well with that obtained by a mechanical Proficorder® which uses a diamond stylus. Principles of operation, results of various performance tests and potential applications of the optical-transducer are discussed.
© (1978) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Takeo Sawatari and Richard B. Zipin "Optical Profile Transducer", Proc. SPIE 0153, Advances in Optical Metrology I, (15 December 1978); https://doi.org/10.1117/12.938208
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