Beam arrangement on two-dimensional temperature reconstruction based on laser absorption spectroscopy

Junling Song; Yanji Hong; Hu Pan; Guangyu Wang

doi:10.1117/12.2031034

11 September 2013 Beam arrangement on two-dimensional temperature reconstruction based on laser absorption spectroscopy

Junling Song, Yanji Hong, Hu Pan, Guangyu Wang

Proceedings Volume 8907, International Symposium on Photoelectronic Detection and Imaging 2013: Infrared Imaging and Applications; 89070K (2013) https://doi.org/10.1117/12.2031034
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

Using the laser absorption spectroscopy and algebraic iterative reconstruction methods, two-dimensional (2D) temperature distribution has been reconstructed with irregular beam distribution. The reconstruction accuracy strongly depends on the beam distribution. Therefore, an optimal design of the beam arrays can reduce the experimental cost and maximize the beam potentiality. This paper introduces the grid weight factor (GridWF) to evaluate the beam distribution relating to the discrete region. The error of the reconstruction is less than 15% using optimal beam distribution, which is lower than the results of non-optimization. As an increase in the number of emitters, the error can be obviously reduced. Two H₂O absorption transitions (7205.25 cm⁻¹ and 7416.05 cm⁻¹) are adopted in the simulation. The 2D temperature reconstruction with optimal beam distribution and different number of emitters are demonstrated, showing the optimal design of the beam array having excellent reconstructed performance.

Citation Download Citation

Junling Song, Yanji Hong, Hu Pan, and Guangyu Wang "Beam arrangement on two-dimensional temperature reconstruction based on laser absorption spectroscopy", Proc. SPIE 8907, International Symposium on Photoelectronic Detection and Imaging 2013: Infrared Imaging and Applications, 89070K (11 September 2013); https://doi.org/10.1117/12.2031034

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