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Proceedings Paper

New temperature measuring methods for improving accuracy and dynamic behavior of sensors
Author(s): Hans Volker
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Paper Abstract

High accuracy measuring technique presupposes a high standard of quality of all components of a system. The first and most significant component in a measuring system is the sensor. Longtime experiences have shown that thermistors are well suited resistance sensors for high precision ternperature measurements. The first essential is that the characteristic of the sensor must be known of course. The method of the determination of this characteristic will be described. As the signal processing requires a high resolution and high rejection of parameter influences multislope analog to digital converters are used in connection with compensation methods. The paper describes the measuring method for accuracies of absolute temperatures of some Milli-Kelvin. The second part deals with the improvement of the dynamic behaviour of slow temperature sensors. The acceleration bases upon the self-heating process of the sensor by a feeding current which is controlled by fuzzy control technique.

Paper Details

Date Published: 22 September 1993
PDF: 6 pages
Proc. SPIE 2101, Measurement Technology and Intelligent Instruments, (22 September 1993); doi: 10.1117/12.156325
Show Author Affiliations
Hans Volker, Univ. of Essen (Germany)

Published in SPIE Proceedings Vol. 2101:
Measurement Technology and Intelligent Instruments
Li Zhu, Editor(s)

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