Title :
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
fDate :
6/24/1905 12:00:00 AM
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;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2002. IMTC/2002. Proceedings of the 19th IEEE
Print_ISBN :
0-7803-7218-2
DOI :
10.1109/IMTC.2002.1007078
