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Sensors 2016, 16(7), 977; doi:10.3390/s16070977

Real-Time Two-Dimensional Mapping of Relative Local Surface Temperatures with a Thin-Film Sensor Array

Key Laboratory for the Physics & Chemistry of Nanodevices, and Department of Electronics, Peking University, Beijing 100871, China
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Academic Editor: Vittorio M. N. Passaro
Received: 14 March 2016 / Revised: 8 June 2016 / Accepted: 9 June 2016 / Published: 25 June 2016
(This article belongs to the Section Physical Sensors)
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Abstract

Dynamic mapping of an object’s local temperature distribution may offer valuable information for failure analysis, system control and improvement. In this letter we present a computerized measurement system which is equipped with a hybrid, low-noise mechanical-electrical multiplexer for real-time two-dimensional (2D) mapping of surface temperatures. We demonstrate the performance of the system on a device embedded with 32 pieces of built-in Cr-Pt thin-film thermocouples arranged in a 4 × 8 matrix. The system can display a continuous 2D mapping movie of relative temperatures with a time interval around 1 s. This technique may find applications in a variety of practical devices and systems. View Full-Text
Keywords: temperature measurement; multiplexer; real-time; two-dimensional mapping; temperature sensor array temperature measurement; multiplexer; real-time; two-dimensional mapping; temperature sensor array
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Li, G.; Wang, Z.; Mao, X.; Zhang, Y.; Huo, X.; Liu, H.; Xu, S. Real-Time Two-Dimensional Mapping of Relative Local Surface Temperatures with a Thin-Film Sensor Array. Sensors 2016, 16, 977.

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