Temperature control system for inductance standard

Author

Gulmez, Yakup ; Gulmez, C. ; Turhan, E. ; Ozkan, T.

Author_Institution

Tubitak Ulusal Metrol. Enstitusu, Kocaeli, Turkey

fYear

2000

fDate

14-19 May 2000

Firstpage

143

Lastpage

144

Abstract

The construction of the temperature controlled inductor at UME, based on the electronic principle of the PI (proportional-integral) method which gives 1 mK stability at the set point is reported. The aim of this work is to reduce the uncertainty component which mostly originated from the temperature dependence of the inductance standard for primary level measurements. Some experimental results are presented and discussed.

Keywords

Bridge circuits; Error compensation; Feedback; Inductance measurement; Inductors; Measurement uncertainty; Temperature control; Transfer standards; Two-term control; Maxwell-Wien bridge; NTC resistive sensors; PI compensation; Wheatstone bridge; feedback loop; inductance standard; instrumentation amplifier; offset errors elimination; primary level measurements; proportional-integral method; set point; temperature control system; temperature controlled inductor; temperature stability; thermostatic portable standard; uncertainty component; Bridge circuits; Control systems; Inductance; Inductors; Instruments; Land surface temperature; Resistors; Temperature control; Temperature sensors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements Digest, 2000 Conference on

Conference_Location

Sydney, NSW, Australia

Print_ISBN

0-7803-5744-2

Type

conf

DOI

10.1109/CPEM.2000.850918

Filename

850918