Portable capacitance tomography measuring device
A technology of electrical capacitance tomography and measuring equipment, which is applied in the direction of material capacitance, etc., can solve the problems of ECT system not having portability, linear power supply volume, and heavy weight, etc., and achieves the advantages of easy function expansion, low power consumption, and improved stability Effect
Active Publication Date: 2019-06-18
BEIHANG UNIV
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Abstract
The invention relates to a portable capacitance tomography measuring device. The device is characterized by mainly comprising five parts, including a power module (1), a clock and control module (2),a signal generation module (3), a capacitance measurement module (4) and a data acquisition and transmission module (5), wherein the modules of the circuit are uniformly connected with a standard businterface and are powered and communicated through an industry standard bus, each module includes a corresponding simulation circuit and a digital logic circuit, the power module (1) is composed of alithium battery and a power management circuit, the clock and control module (2) is composed of a crystal oscillator circuit, a control clock and a switch circuit, the signal generation module (3) iscomposed of a lookup table register and a digital-to-analog conversion circuit, the capacitance measurement module (4) is composed of a current-voltage conversion circuit and a digital demodulator, and the data acquisition and transmission module (5) is composed of an on-chip storage circuit and a universal serial bus communication circuit.
Application Domain
Material capacitance
Technology Topic
TomographyDigital logic circuits +13
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- Experimental program(1)
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