Direct Comparison of Analogue and Digital FGPA-Based Approaches to Synchronous Detection

• Autorzy: Teren O. , Tomlain J. , Sedlacek R.

Identyfikatory

DOI

10.24425/118162

• Języki publikacji: EN

Abstrakty

EN

This paper deals with a comparison between digital and analogue implementation of a synchronous detection algorithm. The commonly used implementation methods of synchronous detection are presented in the paper. The paper describes FPGA-based digital and analogue hardware approaches, focusing on the digital design. The characteristics of used analogue-to-digital converters are measured. Both proposed approaches are directly compared in terms of sensitivity and long-term stability. The achieved results, along with identified limitations and proposed improvements are widely discussed.

Słowa kluczowe

EN

synchronous detection; lock-in amplifier; digital signal processing; FPGA; measurement of impedance

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2018
• Tom: Vol. 25, nr 1
• Strony: 57--69
• Opis fizyczny: Bibliogr. 21 poz., rys., tab., wykr., wzory

Twórcy

autor

Teren O.

• Czech Technical University in Prague, Faculty of Electrical Engineering, Technicka 2, 166 27 Prague 6, Czech Republic

autor

Tomlain J.

• Czech Technical University in Prague, Faculty of Electrical Engineering, Technicka 2, 166 27 Prague 6, Czech Republic

autor

Sedlacek R.

• Czech Technical University in Prague, Faculty of Electrical Engineering, Technicka 2, 166 27 Prague 6, Czech Republic

Bibliografia

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• [4] Koukourlis, C.S., Trigonidis, V.K., Sahalos, J.N. (1993). Differential synchronous demodulation for small signal amplitude estimation. IEEE Transactions on Instrumentation and Measurement, 42(5), 926-931.
• [5] Alonso, R., Villuendas, F., Borja, J., Barragn, L.A., Salinas, I. (2003). Low-cost, digital lock-in module with external reference for coating glass transmission/reflection spectrophotometer. Measurement Science and Technology, 14(5), 551.
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• [16] Kejun, J., Yangang, Z., Ying, L., Huiqin, W. (2010). Design and implementation dds based on fpga. Circuits. Communications and System (PACCS), 2010 Second Pacific-Asia Conference on, 2, 121-123.
• [17] Yue, R., Ying, T., Wen-ji, Y., Zhang-quan, W., Sen, X. (2012). A single chip multi-functional dds waveform generator based on fpga with sopc design flow. Intelligent Control and Automation (WCICA), 2012 10th World Congress on, 4206-4210.
• [18] Tomlain, J., Sedlacek, R., Vedral, J. (2015). Partial discharge diagnostic system for nondestructive testing of high-voltage machines. XXI IMEKO World Congress ”Measurement in Research and Industry”.
• [19] Teren, O., Sedlacek, R., Vedral, J. (2015 Capacitance and dissipation factor meter for highvoltage electrical machines. XXI IMEKO World Congress ”Measurement in Research and Industry”.
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Uwagi

EN

This work was financially supported by the Czech Technical University within the framework of project No. SGS15/213/OHK3/3T/13 “Non-destructive diagnostic methods of HV power transformers”.

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).