Applications of Thermoresistive Sensors Using the Electric Equivalence Principle

Author

Freire, Raimundo Carlos Silvério ; Catunda, Sebastian Yuri Cavalcanti ; Luciano, Benedito Antonio

Author_Institution

Dept. of Electr. Eng., Fed. Univ. of Campina Grande, Campina Grande

Volume

58

Issue

6

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

1823

Lastpage

1830

Abstract

In this paper, a survey on the characteristics of thermoresistive sensors [positive temperature coefficient (PTC) and negative temperature coefficient (NTC)] and their applications to measurement structures that use the electric equivalence principle, in special radiometers and anemometers, is presented. The dynamic responses of the architectures and the influence of the operational amplifier offset voltage on the instrument performance are discussed. Alternative architectures employing pulsewidth modulation (PWM) and sigma-delta analog-to-digital (A/D) converters are also shown.

Keywords

anemometers; electric sensing devices; operational amplifiers; radiometers; sigma-delta modulation; temperature measurement; temperature sensors; PWM; anemometer; electric equivalence principle; operational amplifier offset voltage; pulsewidth modulation; radiometer; sigma-delta analog-to-digital converter; thermoresistive sensor; Anemometer; electric equivalence principle; offset voltage; radiometer; thermoresistive sensors;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2009.2013659

Filename

4783058