A new four terminal-pair bridge for traceable impedance measurements at frequencies up to 1 MHz

A new four terminal-pair bridge has been developed and used for traceable measurement of capacitance and resistance at frequencies up to 1 MHz. The apparent capacitance of a gas-filled 100-pF standard agrees with calculated values to better than 200 /spl mu/F/F at 1 MHz. This is an order of magnitud...

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Bibliographic Details
Published in:IEEE transactions on instrumentation and measurement 2001-04, Vol.50 (2), p.282-285
Main Authors: Awan, S.A., Kibble, B.P., Robinson, I.A., Giblin, S.P.
Format: Article
Language:English
Subjects:
Bridge circuits
Cables
Capacitance
Capacitance bridges
Capacitors
Ceramics
Dissipation factor
Electrical resistance measurement
Frequency dependence
Frequency measurement
Impedance measurement
Instrumentation
Mathematical analysis
Measurement standards
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Summary:A new four terminal-pair bridge has been developed and used for traceable measurement of capacitance and resistance at frequencies up to 1 MHz. The apparent capacitance of a gas-filled 100-pF standard agrees with calculated values to better than 200 /spl mu/F/F at 1 MHz. This is an order of magnitude improvement on existing capabilities at NPL. The frequency dependence of the dissipation factor of capacitance standards is discussed, and the capacitance and dissipation factor of ceramic NPO-dielectric standards has also been measured. The frequency dependence measurements of the calculable coaxial 100-/spl Omega/ and 1-k/spl Omega/ resistance standards are also presented.
ISSN:0018-9456
1557-9662
DOI:10.1109/19.918122