MJ internal thread used for aerospace and its noncontact test method with a fiber optic sensor

Yong Zhao; Pengsheng Li; Zhaobang Pu

doi:10.1117/12.347727

7 May 1999 MJ internal thread used for aerospace and its noncontact test method with a fiber optic sensor

Yong Zhao, Pengsheng Li, Zhaobang Pu

Proceedings Volume 3740, Optical Engineering for Sensing and Nanotechnology (ICOSN '99); (1999) https://doi.org/10.1117/12.347727
Event: Optical Engineering for Sensing and Nanotechnology (ICOSN '99), 1999, Yokohama, Japan

Abstract

The characteristics of MJ internal threads used for aerospace products are introduced in this paper. The mathematical models and the design of a novel fiber-optic sensor for non-contact quantification test on MJ internal threads are presented. As to the feasibility of the sensor head, the theoretical analysis is given, and the experimental results agreed with them. The resolution the sensor developed can reach 0.1 micrometer when used to measure reference planes. And for the MJ internal thread measurement, the estimated uncertainty was around plus or minus 25 micrometer.

Citation Download Citation

Yong Zhao, Pengsheng Li, and Zhaobang Pu "MJ internal thread used for aerospace and its noncontact test method with a fiber optic sensor", Proc. SPIE 3740, Optical Engineering for Sensing and Nanotechnology (ICOSN '99), (7 May 1999); https://doi.org/10.1117/12.347727

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