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ECVT for Aerospace Applications

Electrical Capacitive Volume tomography is an imaging technique is used for monitoring and control of scientific experiments in space and flow measurement of multiphase flow processes in combustion at zero gravity.

Electrical Capacitive tomography is used to find the permittivity distribution of the material within an area; it is successfully employed to image the flow in pipes. An ECT sensor consists of pair of Electrodes surrounding the region where permittivity distribution needs to be found. A Schematic diagram of the capacitances measurement system is given below:

Figure 1 Complete ECT System

The ECT system consists of system of measurement Electrodes that are known as sensors, these electrodes are excited by applying a potential on one electrode, whereas the rest of the electrode are grounded.

In this paper the technical background, foundations and principles and a few applications will be discussed of ECVT.