A Precision Resistance Generator for the Calibration of RTD-Based Temperature Instruments-Reference-Cited by-同舟云学术

A Precision Resistance Generator for the Calibration of RTD-Based Temperature Instruments

Published:2014-12 Issue: Volume:721 Page:513-516
ISSN:1662-7482
Container-title:Applied Mechanics and Materials
language:
Short-container-title:AMM

Author:

Chen Pan Hui¹,Guo Li Feng¹,Lu Gu Bing¹,Jin Chuan Xi¹

Affiliation:

1. Naval University of Engineering

Abstract

A new calibration method for RTD-based temperature instrument is introduced. The precision resistance is generated using digital-controlled relays to switch a precision resistance network which is similar to the resistance box. We also present a new switch algorithm to reduce the influence of initial error of the precision resistors. The resistance of the precision resistance generator varies from 80.00ohms to 260.00ohms with a 4-wire output interface. It is convenient that using this precision resistance generator to test the nonlinear of temperature transmitters based on Pt100. Our test shows that the generator can provide a precision resistance with an uncertainty of less than ±0.02ohms.

Publisher

Trans Tech Publications, Ltd.

Link

https://www.scientific.net/AMM.721.513.pdf

Reference6 articles.

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2. Jiguang Liu, Yukun Li, Hongyan Zhao, A temperature Measurement System Based on PT100, Proc. International Conference on Electrical and Control Engineering, (Wuhan, China, June, 2010). p.296.

3. K.V. Santhosh and B.K. Roy, An Adaptive Calibration Circuit for RTD Using Optimized ANN, Proc. 7th International Conference on Intelligent Systems and Control, 2013. p.49.

4. Najidah Hambali , Shahrizal Saat , Mohd Ashraf Ahmad , Mohd Syakirin Ramli, Muhamad Akmal Ishak , Computer based System for Calibration of Temperature Transmitter using RTD, Proc. 3rd International Conference on information Management, innovation Management and industrial Engineering, (Kunming, China, November, 2010).

5. H. Preston-Tomas, The International Temperature Scale of 1990, (ITS-90), Metrologia 27, 1 (1990).

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