Investigating linearity of a high voltage capacitance bridge

E. P. Suomalainen; J. Hällström

doi:10.1109/CPEM.2014.6898538

Investigating linearity of a high voltage capacitance bridge

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

High voltage capacitance bridge can be calibrated at fixed ratios using traceable standard capacitors. Typical ratios to be calibrated are 10 to 1 and 100 to 1. Substitution method can be used to reduce bridge related errors and uncertainties. When a capacitor under calibration deviates significantly from the reference capacitor, substitution method is not any more applicable and linearity of a capacitance bridge has to be considered. This paper describes a method to investigate linearity of a high voltage capacitance bridge. The method is based on two reference capacitors and two simultaneously sampling voltmeters. Results of the linearity test of four largest decades of a current comparator capacitance bridge are presented.

Original language	English
Title of host publication	29th Conference on Precision Electromagnetic Measurements (CPEM 2014)
Publisher	IEEE Institute of Electrical and Electronic Engineers
Pages	620-621
Number of pages	2
ISBN (Electronic)	978-1-4799-2479-0, 978-1-4799-2478-3
ISBN (Print)	978-1-4799-5205-2
DOIs	https://doi.org/10.1109/CPEM.2014.6898538
Publication status	Published - 12 Sep 2014
MoE publication type	A4 Article in a conference publication
Event	29th Conference on Precision Electromagnetic Measurements, CPEM 2014 - Rio de Janeiro, Brazil Duration: 24 Aug 2014 → 29 Aug 2014

Conference

Conference	29th Conference on Precision Electromagnetic Measurements, CPEM 2014
Abbreviated title	CPEM 2014
Country	Brazil
City	Rio de Janeiro
Period	24/08/14 → 29/08/14

Keywords

capacitance
Capacitance bridge
high voltage
high-voltage techniques
sampling techniques

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10.1109/CPEM.2014.6898538

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Suomalainen, EP & Hällström, J 2014, Investigating linearity of a high voltage capacitance bridge. in 29th Conference on Precision Electromagnetic Measurements (CPEM 2014)., 6898538, IEEE Institute of Electrical and Electronic Engineers, pp. 620-621, 29th Conference on Precision Electromagnetic Measurements, CPEM 2014, Rio de Janeiro, Brazil, 24/08/14. https://doi.org/10.1109/CPEM.2014.6898538

Investigating linearity of a high voltage capacitance bridge. / Suomalainen, E. P.; Hällström, J.

29th Conference on Precision Electromagnetic Measurements (CPEM 2014). IEEE Institute of Electrical and Electronic Engineers, 2014. p. 620-621 6898538.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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AB - High voltage capacitance bridge can be calibrated at fixed ratios using traceable standard capacitors. Typical ratios to be calibrated are 10 to 1 and 100 to 1. Substitution method can be used to reduce bridge related errors and uncertainties. When a capacitor under calibration deviates significantly from the reference capacitor, substitution method is not any more applicable and linearity of a capacitance bridge has to be considered. This paper describes a method to investigate linearity of a high voltage capacitance bridge. The method is based on two reference capacitors and two simultaneously sampling voltmeters. Results of the linearity test of four largest decades of a current comparator capacitance bridge are presented.

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Investigating linearity of a high voltage capacitance bridge

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