Digital speckle pattern interferometry (DSPI) using optical polarization phase shift for measurement of temperature field in thermal flow

Yaozu Song; Ying Wu; Rudi Kulenovic; Zengyuan Guo; Manfred Groll

doi:10.1117/12.293405

21 November 1997 Digital speckle pattern interferometry (DSPI) using optical polarization phase shift for measurement of temperature field in thermal flow

Yaozu Song, Ying Wu, Rudi Kulenovic, Zengyuan Guo, Manfred Groll

Author Affiliations +

Proceedings Volume 3172, Optical Technology in Fluid, Thermal, and Combustion Flow III; (1997) https://doi.org/10.1117/12.293405
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

In this paper a digital speckle pattern interferometry (DSPI) based on an optical polarization phase shift for measurement of temperature fields in thermal flow is presented. First, the principle and physical-mathematical models of the phase shift digital speckle pattern interferometry (PSDSPI) are proposed. Second, the experimental arrangement of PSDSPI is described. Third,the effects of experimental parameters on PSDSPI, e.g. spatial location of speckle source, intensity ratio of objective to reference beam, F-number of image lens and angle between objective and reference beam are analyzed in detail. Finally, some experimental results are presented. The PSDSPI is based on optical polarization phase shift technique, which uses a quarter-wave plate and a plane polarizer. When the relative position between the quarter-wave plate and the polarizer is rotated, a phase shift can be introduced. Comparing to piezoelectric transducer phase shift device, the optical polarization phase shift is more convenient, because no complex calibration is needed. As an application example PSDSPI is used for temperature field measurements in a natural convection flow generated by a heated vertical plate. The investigations show that the PSDSPI is a fast and real-time measurement method for optical diagnostic of thermal flow.

Citation Download Citation

Yaozu Song, Ying Wu, Rudi Kulenovic, Zengyuan Guo, and Manfred Groll "Digital speckle pattern interferometry (DSPI) using optical polarization phase shift for measurement of temperature field in thermal flow", Proc. SPIE 3172, Optical Technology in Fluid, Thermal, and Combustion Flow III, (21 November 1997); https://doi.org/10.1117/12.293405

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available