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

• 作者: 姚凯男 崔博川 王建立 陈涛
• 来源期刊: 光电子快报（英文版）
• 年，卷（期）: 2018,（2）
• 页码范围: 124-128
• 页数: 5页
• 语种: 英文
• DOI: 10.1007/s11801-018-7218-7

摘要

An approach to measure a high-dynamic two-dimensional (2D) 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.