Study on the Infrared Lens-Free Irradiation Thermometer Based on InGaAs Detector at NIM

被引：4

作者：

Hao, X. P. ^{[1
]}

Yuan, Z. D. ^{[1
]}

Huang, S. Y. ^{[1
,2
]}

Song, J. ^{[1
]}

Xu, K. ^{[1
,2
]}

机构：

[1] Natl Inst Metrol, Div Thermophys & Proc Measurements, Beijing 100013, Peoples R China

[2] Chengdu Univ Technol, Coll Appl Nucl Technol & Automat Engn, Chengdu 610059, Peoples R China

来源：

INTERNATIONAL JOURNAL OF THERMOPHYSICS | 2015年 / 36卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Heat-pipe blackbody; Lens-free irradiation thermometer; Multipoint calibration method; Radiation thermometry;

D O I：

10.1007/s10765-015-1955-7

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A lens-free irradiation thermometer (LF-IRRT) designed for laboratory applications, with center wavelength based on the InGaAs detector, and a temperature range from to , has been developed at NIM of China. The thermometer has no imaging optics for collecting the radiation, for which a major benefit is improved stability compared to other radiation thermometers. This paper introduces the measurement principle, the structure of the LF-IRRT, the multiple-point calibration method, and the stability and expanded uncertainty of the thermometer. The stability of the LF-IRRT is better than at temperatures from to over a period of 1 month. The expanded uncertainty is less than for temperatures between and . The size-of-source effect of the LF-IRRT is 0.6 % from the source diameter range from 10 mm to 65 mm.

引用

页码：3320 / 3329

页数：10

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