THERMISTOR MULTIVIBRATOR AS THE TEMPERATURE-TO-FREQUENCY CONVERTER AND AS A BRIDGE FOR TEMPERATURE MEASUREMENT.

Dragan Stankovic, Jovan Elazar

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

A symmetrical multivibrator with one timing resistor replaced by a network consisting of a thermistor and passive resistors, is analyzed. The circuit represents at the same time a linear temperature-to-frequency converter and a multivibrator bridge (MB), both having the same linearity range with any thermistor network configuration. When the balance state is reached at an inflection point, the sensitivities of the converter and the bridge are the same. The MB has higher sensitivity than the Wheatstone bridge and can be balanced independently of the inflection point over a wide range. The converter and bridge performances with practical thermistor transducers are analyzed theoretically and numerically.

Original languageEnglish
Pages (from-to)41-46
Number of pages6
JournalIEEE Transactions on Instrumentation and Measurement
VolumeIM-26
Issue number1
DOIs
StatePublished - 1 Jan 1977

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