Automation of reading liquid-in-glass thermometers

被引：6

作者：

Batagelj, V ^{[1
]}

Bojkovski, J ^{[1
]}

Drnovek, J ^{[1
]}

Pusnik, I ^{[1
]}

机构：

[1] Univ Ljubljana, Fac Elect Engn, Lab Metrol & Qual, Ljubljana, Slovenia

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2001年 / 50卷 / 06期

关键词：

automation; calibration; image processing; liquid in glass thermometer; reading of analog instruments;

D O I：

10.1109/19.982951

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In the proposed paper, automation of calibration of liquid-in-glass thermometers (LiGTs) is discussed. Temperature readings are taken automatically with the use of a measuring system that consists of a standard calibration setup, the video camera and illumination, the image acquisition module and the computer that executes the algorithm for image processing and analysis. Once the reading of the temperature is extracted from the acquired image, this value can be passed to any other data processing program, which includes the comparison with the values from the reference thermometer and determination of correction and combined uncertainty. Data achieved in this way can be directly used to prepare the calibration certificate.

引用

页码：1594 / 1598

页数：5