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Measurement Automation to Implement Evaluation Procedure of Four-Terminal-Pair Capacitance Standards Using S-Parameters

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Abstract

The evaluation procedure of four-terminal-pair capacitance standards using S-parameters is very complex as it involves the measurement of different parameters by multiple instruments. It also involves complex computation of effective capacitance as a function of frequency and its associated uncertainty in measurement. The reported paper presents the development of measurement automation program to implement evaluation procedure of four-terminal-pair capacitance standards of values varying between 1 and 1000 pF up to 30 MHz. The measurement automation increases the functionality with a comprehensive and flexible tool set for data acquisition, analysis, reporting and representation of results. The sequence of operations performed by the developed measurement automation program is described in detail. The program configures and measures S-parameters, converts S-parameters into corresponding impedance and admittance parameters, determines series and parallel resonance frequencies. Thereafter, it determines residual capacitive and residual inductive parameters and finally computes the effective value of each capacitance standard as a function of frequency along with the associated uncertainty in measurement. Measurement automation has provided precise and efficient way for the implementation of evaluation procedure of capacitance standards.

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Acknowledgements

The authors would like to thank Dr. D. K. Aswal, Director CSIR-NPL and Dr. V. N. Ojha, Head of Time & Frequency and Electrical & Electronic Metrology division for constant encouragement. The authors would also like to thank CSIR, India for funding PSC0111 project under which the reported work has been carried out.

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Satish, Babita, Khurana, B. et al. Measurement Automation to Implement Evaluation Procedure of Four-Terminal-Pair Capacitance Standards Using S-Parameters. MAPAN 32, 175–181 (2017). https://doi.org/10.1007/s12647-017-0211-y

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  • DOI: https://doi.org/10.1007/s12647-017-0211-y

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