Measurement of high-dynamic temperature field using high-speed quadriwave lateral shearing interferometer

An approach to measure a high-dynamic two-dimensional（2 D） temperature field using a high-speed quadriwave lateral shearing interferometer（QWLSI） is proposed. The detailed theoretical derivation to express the wavefront reconstruct principle of the proposed method is presented. The comparison experi...

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Bibliographic Details
Published in:Optoelectronics letters 2018-03, Vol.14 (2), p.124-128
Main Authors: 崔博川, 王建立, 姚凯男, 陈涛
Format: Article
Language:English
Subjects:
High speed
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Shear interferometers
Shearing
Temperature distribution
Thermocouples
测量系统
高速度
干涉仪
温度
侧面
比较实验
高分辨率
热电偶
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Summary:An approach to measure a high-dynamic two-dimensional（2 D） temperature field using a high-speed quadriwave lateral shearing interferometer（QWLSI） is proposed. The detailed theoretical derivation to express the wavefront reconstruct principle of the proposed method is presented. The comparison experiment with thermocouples shows that the temperature field measurement using QWLSI has a precision of ±0.5 °C. An experiment for measuring the highdynamic temperature field generated by an electrical heater is carried out. A 200 frame rate temperature field video with 512 × 512 resolution is obtained finally. Experimental results show that the temperature field measurement system using a QWLSI has the advantage of high sensitivity and high resolution.
ISSN:1673-1905
1993-5013
DOI:10.1007/s11801-018-7218-7