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Progress on an automated co-axial bridge for capacitance comparison.

Giblin, S P; Awan, S A (2001) Progress on an automated co-axial bridge for capacitance comparison. In: BEMC 2001- 10th British Electromagnetic Measurement Conference, 6-8 November 2001, Harrogate, UK.

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Abstract

The 10:1 four terminal-pair (4TP) co-axial capacitance bridge at NPL is to be converted to automatic operation using automated inductive voltage dividers (autoIVD's). A 6-decoder autoIVD was developed recently at NPL as part of EU Framework IV project AcQHR. A computer algorithm for balancing a single autoIVD has been developed, and a simple 2 terminal pair (2TP) bridge has been constructed to test the algorithm. The algorithm balances the bridge in ˜12 s, the bulk of the time being due to transient voltages caused by the IVD switching.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Keywords: AC bridge, automated bridges, capacitance standards
Subjects: Electromagnetics
Electromagnetics > Electrical Measurement
Last Modified: 02 Feb 2018 13:17
URI: http://eprintspublications.npl.co.uk/id/eprint/2161

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