Analysis of a NIC as a temperature compensator for bridge sensors

Author

López-Martin, Antonio J. ; Osa, Juan I. ; Zuza, Mikel ; Carlosena, Alfonso

Author_Institution

Dept. Electr. & Electron. Eng., Univ. Publica de Navarra, Spain

Volume

2

fYear

2002

fDate

6/24/1905 12:00:00 AM

Firstpage

931

Abstract

In this communication we will show an in depth analysis of a Negative Impedance Converter (NIC) as temperature compensation device for bridge sensors. Even though its use has been proposed in some application notes, no theoretical justification has been reported so far, at least to the best of our knowledge. This paper attempts to fill this gap, giving closed form expressions for a correct use of the NIC in any application.

Keywords

bridge circuits; compensation; electric sensing devices; negative impedance convertors; angular displacements measurement; bridge sensitivity; bridge sensors; current biasing; differential voltage; discrete bipolar implementations; four impedance bridge; integrated CMOS implementations; magnetoresistive sensor; negative impedance converter; net temperature dependence; output voltage; precise design; residual temperature dependence; resistive bridge; second-order effects; strain gauge; temperature compensator; Bridge circuits; Capacitive sensors; Displacement measurement; Electrical resistance measurement; Impedance measurement; Magnetic sensors; Pressure measurement; Temperature dependence; Temperature sensors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2002. IMTC/2002. Proceedings of the 19th IEEE

ISSN

1091-5281

Print_ISBN

0-7803-7218-2

Type

conf

DOI

10.1109/IMTC.2002.1007078

Filename

1007078