Metrology & Hallmark

https://www.gum.gov.pl/wye/content/current-volume/5965,Linearity-measurement-of-digitizers-used-in-sampling-based-digital-impedance-bri.html
18.01.2025, 16:21

Linearity measurement of digitizers used in sampling-based digital impedance bridges by the method of permuting capacitors

Metrology & Hallmark

Authors Marian Kampik, Krzysztof Kubiczek, Krzysztof Musioł - Department of Measurement Science, Electronics and Control (KMEiA), Faculty of Electrical Engineering, Silesian University of Technology; Paweł Zawadzki, Adam Ziółek, Jolanta Jursza, Maciej Koszarny - Central Office of Measures (GUM), Department of Electricity and Radiation

Abstract

Experimental studies of commercial PXI digitizers in terms of their use in primary impedance metrology are presented in the paper. The scope of the work includes the presentation of the permutation method and presentation of new physical model of permuting capacitor device developed at Silesian University of Technology (SUT). The spread of the parameters of the capacitors used proves that the developed device can be used as a reference standard for measuring the voltage ratio. The developed permuting device was used by the authors to measure nonlinearity errors of digitizers on boards NI PXI-4462 which is commonly used in National Metrology Institutes for impedance measurement purposes. The obtained results showed the nonlinearity errors at the level 10−6 and proved possibility of comparing standards with modulus ratios of 5:1 with an uncertainty of 5∙10-6 without the need to correct digitizer nonlinearity. Moreover, the results allowed the authors to select a digitizer with the lowest nonlinearity errors that is used in digital sampling impedance bridge being currently developed at SUT.

Bibliography

[1] F. Overney et al, Dual Josephson impedance bridge: towards a universal bridge for impedance metrology, Metrologia 57 065014, 2020.
[2] F. Overney, N.E. Flowers-Jacobs, B. Jeanneret, A.Rufenacht, A.E Fox, J.M. Underwood, A.D. Koffman and S.P. Benz, Josephson-based full digital bridge for high-accuracy impedance comparisons, Metrologia 53, 2016, 1045–1053.
[3] M. Ortolano, L. Palafox, J. Kucera, L. Callegaro, V. D’Elia, M. Marzano, F. Overney, G. Gulmez “An international comparison of phase angle standards between the novel impedance bridges of CMI, INRIM and METAS” Metrologia 55, 2018, pp. 499–512.
[4] L. Callegaro, V. D'Elia, M. Kampik, Dan Bee Kim, M. Ortolano, F. Pourdanesh, Ngoc Thanh Mai Tran, Experiences with a two terminal-pair digital impedance bridge, IEEE Trans. Instrum. Meas. 64, (6), 2015, 1460–1465.
[5] F. Overney, B. Jeanneret, RLC Bridge based on an Automated Synchronous Sampling System, IEEE Trans. Instrum. Meas. 60 (7), 2011, pp. 2393–2398.
[6] S. Mašláň, M. Šíra, T. Skalická and T. Bergsten, "Four-Terminal Pair Digital Sampling Impedance Bridge up to 1MHz," in IEEE Transactions on Instrumentation and Measurement, vol. 68, no. 6, June 2019, pp. 1860-1869.
[7] R. Rybski, J. Kaczmarek and M. Koziol, "Characterization of a digitizer for a low value resistor calibration system in the audio-frequency band," 2012 Conference on Precision electromagnetic Measurements, Washington, DC, USA, 2012, pp. 580-581.
[8] S. Awan, B. Kibble, and J. Schurr, Coaxial Electrical Circuits for Interference-Free measurements (Electrical Measurement). Edison, NJ, USA: IET, 2010.
[9] Kampik M., Musioł K.: Investigations of the high-performance source of digitally synthesized sinusoidal voltage for primary impedance metrology, Measurement, 2021 vol. 168 pp. 1-9
[10] K. Musioł, M. Kampik A. Ziółek J. Jursza: “Experiences with a new sampling-based four-terminal-pair digital impedance bridge”, Measurement, Volume 205, December 2022, 112159
[11] K. Musioł, M. Kampik, M. Koszarny, A new sampling based four-terminal-pair digital impedance bridge, Measurement: Sensors, Volume 18,2021.
[12] K. Musioł, M. Kampik, Calibration of PXI data acquisition cards used for primary impedance metrology, Systemy pomiarowe w teorii i w praktyce. Measurement systems in theory and practice. Pod red. Ryszarda Rybskiego. Instytut Metrologii, Elektroniki i Informatyki. Uniwersytet Zielonogórski, Zielona Góra, 2020, str. 159-171.
[13] K. Musioł, M. Koszarny, M. Kampik [i in.], “A new impedance metrology infrastructure at GUM”, 25th IMEKO TC-4 International Symposium on Measurement of Electrical Quantities, September 12-14, 2022, Brescia, Italy. Proceedings, 2022, IMEKO, s.243-247.
[14] M. Ortolano et al., "A Comprehensive Analysis of Error Sources in Electronic Fully Digital Impedance Bridges," in IEEE Transactions on Instrumentation and Measurement, vol. 70, 2021. pp. 1-14.
[15] L. Callegaro, V. D’Elia, F. Manta: “A setup for linearity measurement of precision AC voltmeters in the audio frequency range”, 16th IMEKO TC4 Symposium, Florence, 2008.
[16] R. D. Cutkosky and J. Q. Shields, “The precision measurement of transformer ratios,” IRE Trans. Instrum., vol. 9, no. 2, pp. 243–250, Sep. 1960.
[17] N. T. M. Tran, V. D’Elia, L. Callegaro and M. Ortolano, "A Capacitance Build-Up Method to Determine LCR Meter Errors and Capacitance Transfer," in IEEE Transactions on Instrumentation and Measurement, vol. 69, no. 8, pp. 5727-5735, Aug. 2020.
[18] K. Musioł: “Experimental Study of Digitizers Used in High-Precision Impedance Measurements”, Energies, 2022, 15(11), 4051.
[19] J. C. Hsu, J. Gong and C. -F. Huang, "An Automated Permuting Capacitor Device for Calibration of IVDs," in IEEE Transactions on Instrumentation and Measurement, vol. 63, no. 9, pp. 2271-2278, Sept. 2014, doi: 10.1109/TIM.2014.2308035.
[20] L. Callegaro, "On strategies for automatic bridge balancing," in IEEE Transactions on Instrumentation and Measurement, vol. 54, no. 2, pp. 529-532, April 2005, doi: 10.1109/TIM.2004.843126.

capacitors permutation, digitizer, impedance bridge, impedance standard, nonlinearity error

Options