title: Real-Time Two-Dimensional Mapping of Relative Local Surface Temperatures with a Thin-Film Sensor Array.
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.
authors.affiliation: Key Laboratory for the Physics &amp; Chemistry of Nanodevices, and Department of Electronics, Peking University, Beijing 100871, China. pkloylee@pku.edu.cn.
authors.forename: Gang
authors.initials: G
authors.lastname: Li
authors.affiliation: Key Laboratory for the Physics &amp; Chemistry of Nanodevices, and Department of Electronics, Peking University, Beijing 100871, China. wzh632@163.com.
authors.forename: Zhenhai
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Key Laboratory for the Physics &amp; Chemistry of Nanodevices, and Department of Electronics, Peking University, Beijing 100871, China. xymao@pku.edu.cn.
authors.forename: Xinyu
authors.initials: X
authors.lastname: Mao
authors.affiliation: Key Laboratory for the Physics &amp; Chemistry of Nanodevices, and Department of Electronics, Peking University, Beijing 100871, China. 15210624787@163.com.
authors.forename: Yinghuang
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Key Laboratory for the Physics &amp; Chemistry of Nanodevices, and Department of Electronics, Peking University, Beijing 100871, China. huo_xiao_ye@163.com.
authors.forename: Xiaoye
authors.initials: X
authors.lastname: Huo
authors.affiliation: Key Laboratory for the Physics &amp; Chemistry of Nanodevices, and Department of Electronics, Peking University, Beijing 100871, China. liutsunami@gmail.com.
authors.forename: Haixiao
authors.initials: H
authors.lastname: Liu
authors.affiliation: Key Laboratory for the Physics &amp; Chemistry of Nanodevices, and Department of Electronics, Peking University, Beijing 100871, China. xusy@pku.edu.cn.
authors.forename: Shengyong
authors.initials: S
authors.lastname: Xu
keywords: multiplexer; real-time; temperature measurement; temperature sensor array; two-dimensional mapping