Title :
Optical measurement of micrometer displacements of floating particles
Author_Institution :
Yamagata Univ., Yonezawa, Japan
Abstract :
Optical sing-around method with an adaptive compensation for signal losses is proposed for precision measurement of time of flight (TOF) required for visualization of a sound field. A 50 ps pulse laser and special voltage controlled oscillator (VCO) circuitry are employed
Keywords :
acoustic variables measurement; compensation; displacement measurement; optical losses; suspensions; 50 ps; adaptive compensation; floating particles; micrometer displacement measurement; optical measurement; precision measurement; ps pulse laser; signal losses; sound field visualization; special voltage controlled oscillator circuitry; time of flight; Displacement measurement; Laser feedback; Laser noise; Laser radar; Optical feedback; Optical pulses; Particle measurements; Signal resolution; Time measurement; Voltage-controlled oscillators;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1998. LEOS '98. IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-4947-4
DOI :
10.1109/LEOS.1998.739567
