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Comparison of Two Buffers for Impedance Metrology

Kampik M., Tokarski J., Musioł M., Barwinek W., Rybski R., Kaczmarek J., Kozioł M., Nissila J.

Measurement Automation Monitoring

2015

Vol. 61, No. 5

127--131

The paper presents results of investigations of the two precise voltage followers (buffers) intended for the use in precision impedance metrology. The main application of these buffers are buffering the outputs of multi-phase digital sources of sinusoidal voltage used in precise impedance measurements.

Temperature measuring device based on thin film thermoresistors

Hotra O., Boyko O.

Prace Instytutu Elektrotechniki

2012

Z. 260

207-217

Bridge resistive transducers based on thin film thermoresistors were investigated. The temperature dependencies of resistance errors introduced by the method of two-layer structure are obtained. The microprocessor temperature device is elaborated on the base of shifted two-layer resistive structures.

W artykule opisano przetworniki mostkowo-rezystancyjne zbudowane na bazie cienkowarstwowych termorezystorów. Otrzymano temperaturowe zależności opisujące niedokładności przetwarzania spowodowane przez dwuwarstwową strukturę termorezystancyjną. W oparciu o dwuwarstwową strukturę przetwornika opracowano mikroprocesorowy przyrząd pomiaru temperatury.

Experimental Verification of Double Current Strain Gauge Meter

Walendziuk W., Idzikowski A.

Electronics and Telecommunications Quarterly

2008

Vol. 54, No 3

397-404

A four-terminal (4T) bridge-circuit with a current source connected in parallel to opposite arms, is presented. This two-output circuit is named a double current bridge. The example of its application is presented. Signal conditioning formulas of two-parameter measurement of strain and temperature are discussed in detail. An advantage of this solution is that temperature compensation is done without any additional temperature sensor. Some results achieved with the use of this bridge-circuit are briefly described. The standard uncertainties of strain measurement and temperature measurement have been calculated.