Temperature Grid Sensor for the Measurement of Spatial Temperature Distributions at Object Surfaces

Sensors

Thomas Schr¹  Markus Schubert¹ 

[1] Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, P.O. Box 510119, 01314 Dresden, Germany; E-Mails:

关键词: temperature grid sensor;    temperature measurement;    wire-mesh sensor;    thermal surface monitoring;   

DOI  :  10.3390/s130201593

来源: mdpi

【 摘 要 】

This paper presents results of the development and application of a new temperature grid sensor based on the wire-mesh sensor principle. The grid sensor consists of a matrix of 256 Pt1000 platinum chip resistors and an associated electronics that measures the grid resistances with a multiplexing scheme at high speed. The individual sensor elements can be spatially distributed on an object surface and measure transient temperature distributions in real time. The advantage compared with other temperature field measurement approaches such as infrared cameras is that the object under investigation can be thermally insulated and the radiation properties of the surface do not affect the measurement accuracy. The sensor principle is therefore suited for various industrial monitoring applications. Its applicability for surface temperature monitoring has been demonstrated through heating and mixing experiments in a vessel.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.