Title :
Vibrations measurements with a self-mixing type laser displacement sensor for modal analysis
Author :
Bosch, Thierry ; Servagent, Noël ; Boyer, Frédéric
Author_Institution :
Dept. d´´Autom. et Productique, Ecole des Mines, Nantes, France
Abstract :
A low-cost non-contact displacement sensor using the self-mixing effect inside a cw single-mode laser diode has been developed to measure displacements of a metallic target for modal analysis. The resonance frequencies of a thin clamped plate have been detected with an accuracy of 0.2 Hz
Keywords :
displacement measurement; measurement by laser beam; optical sensors; vibration measurement; cw single-mode laser diode; metallic target; modal analysis; noncontact displacement sensor; resonance frequencies; self-mixing laser displacement sensor; thin clamped plate; vibrations measurements; Diode lasers; Displacement measurement; Eigenvalues and eigenfunctions; Laser theory; Modal analysis; Resonance; Resonant frequency; Strain measurement; Tensile stress; Vibration measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1996. IMTC-96. Conference Proceedings. Quality Measurements: The Indispensable Bridge between Theory and Reality., IEEE
Conference_Location :
Brussels
Print_ISBN :
0-7803-3312-8
DOI :
10.1109/IMTC.1996.507462
