APPLICATION OF FEEDBACK LINEARIZATION IN THERMORESISTIVE SENSORS CHARACTERIZATION AND FEEDBACK MEASUREMENT SYSTEMS

Joalbo Borges Santos, Amauri Oliveira, Carlos Eduardo Trabuco Dórea, Daniel Gonçalves de Souza Neto,Tanguy Phulpin
Abstract:
This paper presents the application of feedback linearization for the characterization of thermoresistive sensors and for feedback measurement systems using these sensors kept at constant temperature. This technique allows the generation of an input signal which is proportional to the electric power of the sensor, simplifies the characterization with the possibility of determining thermal conductance and intrinsic time constant of the sensor in a single test. Concerning the feedback measurement system, this technique improves features of the measurement system with the possibility of use a simple linear controller with good performance in the operation point. Experimental results of characterization and measurement are presented.
Keywords:
thermoresistive sensor, closed loop system, characterization of sensor, feedback linearization, virtual instruments
Download:
IMEKO-TC4-2011-033.pdf
DOI:
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Event details
IMEKO TC:
TC4
Event name:
TC4 Symposium 2011
Title:

XVIIIth IMEKO TC4 International Symposium on Measurement of Electrical Quantities (part of Metrologia2011, together with IX International Congress on Electrical Metrology - IX SEMETRO)

Place:
Natal, BRAZIL
Time:
27 September 2011 - 30 September 2011