Title :
Theoretical and experimental study of fiber-optic lever sensors
Author :
Linero, A. ; Jalali, H. ; Joshi, Ravindra P. ; Zuckerwar, A.J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Old Dominion Univ., Norfolk, VA, USA
Abstract :
Reports on the design, performance study and theoretical analysis of a fiber-optic lever sensor capable or operating at temperatures up to 1000 F. Such a device is important for detection and measurements of acoustic pressure fluctuations in hypersonic flow fields under hostile environments. The fiber optic lever sensor exhibited a good stable linear response, when subjected to sound pressure levels in the range of 130-160 dB at temperatures from ambient to 1000 F. The frequency response is in excess of 100 kHz and unaffected by temperature cycling. Calculations of the optical transfer function were also performed and found to be in good agreement with the experimental values
Keywords :
acoustic intensity measurement; acoustic variables measurement; aeroacoustics; fibre optic sensors; flow measurement; frequency response; high-temperature techniques; hypersonic flow; optical transfer function; pressure sensors; 100 kHz; 1000 F; 130 to 160 dB; acoustic pressure fluctuations; design; fiber-optic lever sensors; frequency response; high temperature; hostile environments; hypersonic flow fields; optical transfer function; performance study; sound pressure levels; stable linear response; temperature cycling; theoretical analysis; Acoustic measurements; Acoustic sensors; Acoustic signal detection; Fluid flow measurement; Optical fiber devices; Optical fiber sensors; Performance analysis; Pressure measurement; Temperature distribution; Temperature sensors;
Conference_Titel :
Southeastcon '95. Visualize the Future., Proceedings., IEEE
Conference_Location :
Raleigh, NC
Print_ISBN :
0-7803-2642-3
DOI :
10.1109/SECON.1995.513097
