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15 January 2008 Multi-path optical fiber sensor for atmospheric pressure
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Micrometric displacement sensor with optical fiber was employed to inspect deformation of membrane box with air pressure changing, in order to avoid the defects in inspecting deformation, or improve and optimize performances of the sensors. A multi-path optical fiber sensor was utilized to measure the displacement, so that sensitivity is increased, and a little changing in air pressure may be measured. The relation between optical fiber sensor output changes and atmospheric pressure changes was standardized with a standard air pressure gauge. A setup for measuring atmospheric pressure was formed, the experiment results indicate that measurement range is 500-1060hpa, resolution is 0.2hpa, and accuracy is ±0.2hPa.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shaorong Xiao, Jianhua Chang, and Fulai Ben "Multi-path optical fiber sensor for atmospheric pressure", Proc. SPIE 6836, MEMS/MOEMS Technologies and Applications III, 68361G (15 January 2008);

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