Sensitivity evaluation of thermoresistive sensor constant temperature anemometers

Author

Catunda, Sebastian Y C ; Gabriel, Michel V. ; Sousa, Fernando R. ; Freire, Raimundo C S ; FonsecaNeto, João V.

Author_Institution

DEE, Univ. Fed. do Maranhao, Sao Luis, Brazil

Volume

2

fYear

2004

fDate

18-20 May 2004

Firstpage

1048

Abstract

Constant temperature anemometers (CTA) have been extensively studied in the literature, normally using NTC or PTC thermoresistive sensors. A comparative analysis of the sensitivity of CTA configurations using PTC and NTC is carried out in this work. A methodology for the design of the CTA that yields maximum sensitivity for this configuration is proposed. Furthermore, simulations using typical sensors are presented for supporting the theoretical analysis. The results show that the system performance using both types of thermoresistive sensors is practically the same.

Keywords

anemometers; flow measurement; sensitivity analysis; temperature sensors; thermistors; NTC; PTC; anemometer sensitivity evaluation; constant temperature anemometers; fluid flow velocity measurement; negative temperature coefficient; positive temperature coefficient; sensitivity maximization; thermoresistive sensors; Bridge circuits; Fluid flow measurement; Operational amplifiers; Sensor phenomena and characterization; Surface resistance; Temperature sensors; Thermal sensors; Thermoresistivity; Thin film sensors; Velocity measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2004. IMTC 04. Proceedings of the 21st IEEE

ISSN

1091-5281

Print_ISBN

0-7803-8248-X

Type

conf

DOI

10.1109/IMTC.2004.1351243

Filename

1351243