Performance comparison of background-oriented schlieren and fringe deflection in temperature measurement, part 2: experimental evaluation

Alan Blanco; Bernardino Barrientos; Carlos Mares

doi:10.1117/1.OE.55.6.064104

8 June 2016 Performance comparison of background-oriented schlieren and fringe deflection in temperature measurement, part 2: experimental evaluation

Alan Blanco, Bernardino Barrientos, Carlos Mares

Author Affiliations +

Optical Engineering, Vol. 55, Issue 6, 064104 (June 2016). https://doi.org/10.1117/1.OE.55.6.064104

Abstract

In part 1 of the study, background-oriented schlieren (BOS) and fringe deflection (FD) were numerically compared when used for the measurement of temperature. The aim of this part is to experimentally corroborate the obtained numerical results. In this regard, we analyze an axisymmetric flame issued by a gas nozzle. Fringe deflection and BOS images are recorded at two different points in time and the corresponding displacement results are compared. Furthermore, we implement a variation of the techniques that allows us to carry out simultaneous displacement measurements by them. In this case, the signals of the techniques are encoded on the RGB channels of a color background image. The results confirm that FD slightly outperforms BOS, in particular for images that contain relatively high temperature gradients or regions with low contrast.

Citation Download Citation

Alan Blanco, Bernardino Barrientos, and Carlos Mares "Performance comparison of background-oriented schlieren and fringe deflection in temperature measurement, part 2: experimental evaluation," Optical Engineering 55(6), 064104 (8 June 2016). https://doi.org/10.1117/1.OE.55.6.064104

Published: 8 June 2016

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