Title :
Measurement of small vibrational displacement by SM-LD vibrometer with resonance element
Author :
Kakiuchi, Yoshihiro ; Shinohara, Shigenobu ; Ikeda, Hiroaki ; Yoshida, Hirofumi ; Sumi, Masao
Author_Institution :
Shizuoka Univ., Hamamatsu, Japan
Abstract :
We proposed to enhance a small vibrational displacement of a half light wavelength or less by attaching a thin phosphor bronze plate as a resonance element onto a vibrating body under test. After attaching a 30-Hz or a 90-Hz resonance plate to an air compressor under test, we employed a self-mixing laser diode vibrometer developed by us, and we could confirm the effect of the resonance element
Keywords :
compressors; electric sensing devices; measurement by laser beam; resonance; semiconductor lasers; vibration measurement; 30 Hz; 90 Hz; SM-LD vibrometer; air compressor; half-light-wavelength displacement; resonance element; self-mixing laser diode vibrometer; small vibrational displacement measurement; thin phosphor bronze plate; Diode lasers; Displacement measurement; Frequency measurement; Joining processes; Magnetic resonance; Phosphors; Surface emitting lasers; Vibration measurement; Vibrometers; Wavelength measurement;
Conference_Titel :
SICE '98. Proceedings of the 37th SICE Annual Conference. International Session Papers
Conference_Location :
Chiba
DOI :
10.1109/SICE.1998.742940
