An Automated-Switching Precision Decade Capacitor

Jimmy C. Hsu; Jeng Gong; Chih Fang Huang

doi:10.4028/www.scientific.net/AMM.548-549.719

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 548-549An Automated-Switching Precision Decade Capacitor

An Automated-Switching Precision Decade Capacitor

Abstract:

A new automated-switching precision decade capacitor for applications in industries was designed and tested. By using coaxial microwave switches, the automated-switching precision decade capacitor can be automatically set by electrical TTL signals controlled by a computer. To prevent capacitance from drifting caused by variations of ambient temperature, the internal temperature of the automated-switching precision decade capacitor was effectively kept constant using a temperature-controlled oven with sufficiently thermal isolation. Furthermore, to fulfil the compact-size requirement for using at a high frequency, SMD capacitors with NP0 dielectric were used. The temperature stabilities and linearity of the automated-switching precision decade capacitor are presented in this paper.

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Periodical:

Applied Mechanics and Materials (Volumes 548-549)

Pages:

719-724

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.548-549.719

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Online since:

April 2014

Authors:

Jimmy C. Hsu*, Jeng Gong, Chih Fang Huang

Keywords:

Automatic Switching, Capacitance, Coaxial Switch, Decade Capacitor

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* - Corresponding Author

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