Two-dimensional thermographic phosphor thermometry in a cryogenic environment

被引：16

作者：

Cai, Tao ^{[1
,2
]}

Kim, Dong ^{[3
]}

Kim, Mirae ^{[3
]}

Liu, Ying Zheng ^{[1
,2
]}

Kim, Kyung Chun ^{[3
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mech Engn, Key Lab, Educ Minist Power Machinery & Engn, 800 Dongchuan Rd, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, Gas Turbine Res Inst, 800 Dongchuan Rd, Shanghai 200240, Peoples R China

[3] Pusan Natl Univ, Sch Mech Engn, Busan 609735, South Korea

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2017年 / 28卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

thermometry; thermographic phosphor; cryogenic temperature; two-dimensional; lifetime; TEMPERATURE MEASUREMENTS; FLUORESCENT PAINTS; LUMINESCENCE; APPLICABILITY; VISUALIZATION; LIFETIME;

D O I：

10.1088/1361-6501/28/1/015201

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, lifetime-based thermographic phosphor thermometry was developed for 2D temperature measurements in a cryogenic temperature environment. A chamber was set up to provide such an environment with temperatures of 300-110 K and accuracy of +/- 3.5 K. Mg4FGeO6:Mn was used as a sensor material, which was excited by a pulsed UV LED. A high-speed camera with a frequency of 8000 Hz was used for the phosphor thermometry. Calibration was performed at temperatures ranging from 110 to 290 K. The calibration results clearly show variation in the lifetime at different temperatures, and the calibration error is within 1.7%. This measurement is demonstrated in a 2D temperature measurement of an aluminum plate with a heater for both steady and unsteady heat transfer conditions. The measurement results were compared with thermocouple measurements to validate the method.

引用

页数：8

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