Miniature resistance temperature detector signal processing circuit with dual redundant design

Ming Zhang; Shihong Yan; Likun Xu; Xiaoming Ruan; Xin Xu

doi:10.1117/12.3015045

4 March 2024 Miniature resistance temperature detector signal processing circuit with dual redundant design

Ming Zhang, Shihong Yan, Likun Xu, Xiaoming Ruan, Xin Xu

Proceedings Volume 12981, Ninth International Symposium on Sensors, Mechatronics, and Automation System (ISSMAS 2023); 129812F (2024) https://doi.org/10.1117/12.3015045
Event: 9th International Symposium on Sensors, Mechatronics, and Automation (ISSMAS 2023), 2023, Nanjing, China

Abstract

The Resistance Temperature Detector (RTD) signal processing circuit is an important part of the RTD temperature measurement module. In this paper, the RTD processing signal circuit with a dual redundant design is developed, which realizes the high-precision by the symmetrical design of the circuit layout and the precision control of components to ensure the consistency of the two outputs, and the error of the two output voltages is less than 0.36%. Meanwhile, the circuit adopts high-density thick film hybrid integration technology to realize circuit miniaturization. It is verified that the output voltages accuracy of the circuits for mass production is less than 0.19% at room temperature of 25°C, less than 0.39% at high temperature of 125°C, and less than 0.27% at low temperature of -55°C. The size of the circuit is only 14.40mm×14.40mm×3.55mm. This circuit can be widely used in the field of miniaturized and high-precision temperature measurement as a key device of high-reliability and general-purpose RTD temperature measurement module.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Ming Zhang, Shihong Yan, Likun Xu, Xiaoming Ruan, and Xin Xu "Miniature resistance temperature detector signal processing circuit with dual redundant design", Proc. SPIE 12981, Ninth International Symposium on Sensors, Mechatronics, and Automation System (ISSMAS 2023), 129812F (4 March 2024); https://doi.org/10.1117/12.3015045

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available