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A High-Speed Data Acquisition System for ECT Based on the Differential Sampling Method

机译:基于差分采样方法的ECT高速数据采集系统

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摘要

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.
机译:已经开发了一种基于差分采样方法的电容层析成像的新型电容测量电路。被测电容仅充电和放电一次,并且测量原理不会产生噪声。基于新的测量电路,构建了一个用于12个电极的电容测量系统。测试结果表明,用于66个电容的数据采集时间(用于重建一幅图像)少于1.25 ms。

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