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18 October 2004 Optical fiber sensors for spacecraft: applications and challenges
Edward Joseph Friebele, Charles G. Askins, Gary A. Miller, John R. Peele, Lucienne R. Wasserman
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Proceedings Volume 5554, Photonics for Space Environments IX; (2004) https://doi.org/10.1117/12.562393
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States
Abstract
Optical fiber sensors offer a number of advantages for spacecraft applications, including freedom from electromagnetic interference, light weight, and low power consumption. One application is strain sensing, where high sensitivity and bandwidth and the ability to individually interrogate tens of multiplexed sensors via a single fiber lead has been demonstrated. This paper will describe 2 recent NRL uses of distributed strain sensing using arrays of fiber Bragg gratings (FBGs) on spacecraft parts, structures, and ground test hardware: distributed dynamic strain monitoring of a lightweight reflector during acoustic qualification tests and high-frequency, high-sensitivity strain measurements of a latch fixture. A second fiber sensor being seriously considered for spacecraft is the interferometric fiber optic gyroscope (IFOG). Although its performance in a benign environment is quite attractive, deployment of this and other optical fiber sensors requires addressing issues such as the deleterious effects of the space radiation environment. These challenges, unique to this application, will be discussed.
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Edward Joseph Friebele, Charles G. Askins, Gary A. Miller, John R. Peele, and Lucienne R. Wasserman "Optical fiber sensors for spacecraft: applications and challenges", Proc. SPIE 5554, Photonics for Space Environments IX, (18 October 2004); https://doi.org/10.1117/12.562393
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KEYWORDS
Fiber Bragg gratings
Sensors
Space operations
Fiber optics sensors
Fiber optic gyroscopes
Silica
Gyroscopes
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