An optical displacement monitor
β Scribed by A.J. Pugh; E.A.W. Maunder; M.R. Belmont
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 581 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0263-2241
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π SIMILAR VOLUMES
A modified technique for optical monitoring of the quarter-wave stacks of dielectric materials, utilising the principle of wavelength modulation and phase sensitive detection, is suggested. The accuracy and the sensitivity of the method is very high and can be used for making the coating process sel
## Abstract This work presents a study of displacement sensing based on a fiber eight geometry shape monitored by an optical time domain reflectometer. The displacement sensor is referenced by Fresnel reflection or by a fiber Bragg grating structure located after the sensor. One of the advantages o