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Sensors 2013, 13(2), 1593-1602; doi:10.3390/s130201593

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

1
Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, P.O. Box 510119,01314 Dresden, Germany
2
Technical University Dresden, AREVA Endowed Chair of Imaging Techniques in Energy and Process Engineering, 01062 Dresden, Germany
*
Author to whom correspondence should be addressed.
Received: 9 November 2012 / Revised: 4 January 2013 / Accepted: 6 January 2013 / Published: 25 January 2013
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Germany 2012)
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Abstract

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.
Keywords: temperature grid sensor; temperature measurement; wire-mesh sensor; thermal surface monitoring temperature grid sensor; temperature measurement; wire-mesh sensor; thermal surface monitoring
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Schäfer, T.; Schubert, M.; Hampel, U. Temperature Grid Sensor for the Measurement of Spatial Temperature Distributions at Object Surfaces. Sensors 2013, 13, 1593-1602.

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