Title :
Real-time computation of distance and displacement by software instruments using optical frequency modulation
Author :
Shinoda, Yukitaka ; Itoh, Manabu ; Higo, Takashi
Author_Institution :
Coll. of Sci. & Technol., Nihon Univ., Tokyo, Japan
Abstract :
We have proposed a system for real-time measurement of distance, vibration velocity and displacement by means of optical frequency modulation in the time domain that employs digital signal processing. This paper describes the results of experiments that compare that system to a Zeeman laser system in measurements of vibration displacement at commercial frequency.
Keywords :
displacement measurement; distance measurement; frequency modulation; optical modulation; real-time systems; sensor fusion; velocity measurement; vibration measurement; Zeeman laser system; digital signal processing; displacement measurement; distance measurement; optical frequency modulation; real-time displacement computation; real-time distance computation; real-time measurement; software instruments; time domain; velocity measurement; vibration displacement measurements; vibration measurement; Displacement measurement; Frequency measurement; Frequency modulation; Instruments; Optical computing; Optical modulation; Optical signal processing; Real time systems; Velocity measurement; Vibration measurement;
Conference_Titel :
SICE 2002. Proceedings of the 41st SICE Annual Conference
Print_ISBN :
0-7803-7631-5
DOI :
10.1109/SICE.2002.1195187
