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Proceedings Paper

Recent Developments Of Optical Fiber Sensors For Automotive Use
Author(s): Takao Sasayama; Shigeru Oho; Hiroshi Kuroiwa; Seikoo Suzuki
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Paper Abstract

Optical fiber sensing technologies are expected to apply for many future electronic control systems in automobiles, because of their original outstanding features, such as high noise immunity, high heat resistance, and flexible light propagation paths which can be applicable to measure the movements and directions of the mobiles. In this paper, two typical applications of fiber sensing technologies in automobiles have been described in detail. The combustion flame detector is one of the typical applications of a fiber spectroscopic technology which utilizes the feature of high noise and heat resistibility and remote sensibility. Measurements of engine combustion conditions, such as the detonation, the combustion initiation, and the air-fuel ratio, have been demonstrated in an experimental fiber sensing method. Fiber interferometers, such as a fiber gyroscope, have a lot of possibilities in future mobile applications because they are expandable to many kinds of measurements for movements and physical variables. An optical fiber gyroscope utilizing the single polarized optical fiber and optical devices has been developed. Quite an accurate measurement of vehicle position was displayed on a prototype navigation system which installed the fiber gyroscope as a rotational speed sensor.

Paper Details

Date Published: 3 December 1987
PDF: 11 pages
Proc. SPIE 0840, Fiber Optic Systems for Mobile Platforms, (3 December 1987); doi: 10.1117/12.942590
Show Author Affiliations
Takao Sasayama, Hitachi, Ltd. (Japan)
Shigeru Oho, Hitachi, Ltd. (Japan)
Hiroshi Kuroiwa, Hitachi, Ltd. (Japan)
Seikoo Suzuki, Hitachi, Ltd. (Japan)

Published in SPIE Proceedings Vol. 0840:
Fiber Optic Systems for Mobile Platforms
Norris E. Lewis; Emery L. Moore, Editor(s)

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