Speckle velocimeter with a self-mixing laser diode: Optimization of measurement system, reproducibility and accuracy of measurements

Sahin Ozdemir, S. Takamiya, S. Shinohara, H. Yoshida, M. Sumi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A self-mixing laser diode speckle velocimeter based on autocorrelation of speckle signals is analyzed in details. In this velocimeter scheme, semiconductor laser is used both as the source and the detector enabling a self-detecting, self-aligning system with a single optical axis. Effects of different parameters (beam spot size, measurement time, etc) of the measurement system are analyzed, and the system was optimized for the best accuracy and reproducibility of the measurements. The optimized system has a measurement error less than 1.5% within the range of calibration velocities and less than 3% out of this range.

Original languageEnglish (US)
Title of host publicationConference Record - IEEE Instrumentation and Measurement Technology Conference
PublisherIEEE
Pages717-722
Number of pages6
Volume2
StatePublished - Jan 1 2000
EventIMTC/2000 - 17th IEEE Instrumentation and Measurement Technology Conference 'Smart Connectivity: Integrating Measurement and Control' - Baltimore, MD, USA
Duration: May 1 2000May 4 2000

Other

OtherIMTC/2000 - 17th IEEE Instrumentation and Measurement Technology Conference 'Smart Connectivity: Integrating Measurement and Control'
CityBaltimore, MD, USA
Period5/1/005/4/00

All Science Journal Classification (ASJC) codes

  • Instrumentation

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