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Proceedings Paper

Double frequency of difference frequency signals for optical Doppler effect measuring velocity
Author(s): Xiufang Yang; Renkui Zhou; W. L. Wei; Xiaoming Wang
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Paper Abstract

The mathematical model for measuring moving objects (including fluid body, rolled steel materials in the steel works, turbulent flow, vibration body, etc.) velocity or speed by non-contact method is established using light-wave Doppler effect in this paper. In terms of concrete conditions of different optical circuits, and with the correlated conditions substituted, it is easy to obtain the measurement velocity formulas related to optical circuits. An optical circuit layout of difference Doppler effect measuring velocity is suggested in this paper. The fine beam of light emitted by laser is divided into parallel two beam by spectroscope and mirror They are focused on the object point p by a condenser lens respectively. The object point p become a diffuse source. It scatter rays to every aspect. Some rays scattered by the diffuse source p are collected by a lens. Photoelectric detecter receive the lights collected by the lens. This optical circuit layout can realize the double frequency of difference frequency signals in a novel way.

Paper Details

Date Published: 9 December 2005
PDF: 5 pages
Proc. SPIE 6024, ICO20: Optical Devices and Instruments, 60240G (9 December 2005); doi: 10.1117/12.666820
Show Author Affiliations
Xiufang Yang, Xi'an Univ. of Technology (China)
Renkui Zhou, Xi'an Institute of Optics and Precision Mechanics (China)
W. L. Wei, Xi'an Univ. of Technology (China)
Xiaoming Wang, Xi'an Municipal Government Administration Committee (China)

Published in SPIE Proceedings Vol. 6024:
ICO20: Optical Devices and Instruments
James C. Wyant; X. J. Zhang, Editor(s)

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