Title :
Compact optical sensors for mechanical measurements in industry
Author_Institution :
Dept. of Opt. & Fluid Dynamics, Riso Nat. Lab., Roskilde, Denmark
Abstract :
Summary form only given. A suite of optical sensors based on diffractive optical components are shown. Specifically, sensors for the determination of angular and linear displacement and velocities based on common-path interferometry and speckle motions are described. Analytical expressions for the governing parameters such as speckle size, speckle decorrelation and time-lagged crosscovariances have been obtained using the method of complex ABCD-matrices.
Keywords :
angular measurement; diffractive optical elements; light interferometry; optical sensors; position measurement; speckle; velocity measurement; angular displacement measurement; common-path interferometry; compact optical sensors; complex ABCD-matrices; diffractive optical components; governing parameters; industry; light interferometry; linear displacement measurement; mechanical measurements; speckle decorrelation; speckle motions; speckle size; time-lagged crosscovariances; Adaptive optics; Laser feedback; Laser modes; Mechanical variables measurement; Optical feedback; Optical interferometry; Optical receivers; Optical scattering; Optical sensors; Optical transmitters;
Conference_Titel :
Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-339-0
DOI :
10.1109/CLEO.1998.676236
