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A high-speed data acquisition system for ECT based on the differential sampling method

Baoliang Wang, Haifeng Ji, Zhiyao Huang, Haiqing Li

Open publisher page 54 citations

Abstract

A new capacitance measuring circuit based on differential sampling methods for electrical capacitance tomography has been developed. The measured capacitance is only charged and discharged once and no noise is created by the measurement principle. A capacitance measurement system for 12 electrodes is constructed based on the new measurement circuit. Test results show the data acquisition time for 66 capacitances (for reconstructing one image) is less than 1.25 ms.

About this research paper

What this paper is about

A new capacitance measuring circuit based on differential sampling methods for electrical capacitance tomography has been developed. The measured capacitance is only charged and discharged once and no noise is created by the measurement principle. A capacitance measurement system for 12 electrodes is constructed based on the new measurement circuit. Test results show the data acquisition time for 66 capacitances (for reconstructing one image) is less than 1.25 ms.

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OpenAlex reports 54 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

A new capacitance measuring circuit based on differential sampling methods for electrical capacitance tomography has been developed. The measured capacitance is only charged and discharged once and no noise is created by the measurement principle. A capacitance measurement system for 12 electrodes is constructed based on the new measurement circuit. Test results show the data acquisition time for 66 capacitances (for reconstructing one image) is less than 1.25 ms.

Key concepts: Capacitance, Electrical capacitance tomography, Differential capacitance, Correlated double sampling, Sampling (signal processing), Noise (video), Data acquisition, Parasitic capacitance

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