Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/3184
Title: Development of a fiber optic high-precision position sensor
Authors: Ruan, Fang.
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Issue Date: 2000
Abstract: Fiber optic displacement sensors have been studied since 1970s. While progress has been made and many sensor types have been demonstrated, the technology is not yet fully developed nor exploited. Practical problems remain in the areas of improving the detection process, stability and resolution, optimising construction and packaging. In this project, two kinds of all fiber optic interferometric position sensors are proposed, constructed and characterised. One is a single arm Michelson interferometer, which produces a signal sensitive to displacement while insensitive to environmental perturbations; the other is based on Sagnac interferometer where the sensor output is not directly related to the displacement but to the velocity of a moving object, with the object position obtained by velocity integration. While the previous one uses a minimum of optical components and requires a minimum of optical adjustments, the latter one has potentially wider applications.
URI: http://hdl.handle.net/10356/3184
Rights: Nanyang Technological University
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:EEE Theses

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