Signal Measurement Consistency of ECVT Data Acquisition System Using Capacitor Array

This research relates to tomography based on capacitance measurement namely Electrical Capacitance Volume Tomography (ECVT). The paper discusses the design of ECVT data acquisition system that has frequent problems in measurement, such as error in signal measurement and fabrication errors. Based on those issue, development of an equipment that can help check the data acquisition system by using dummy capacitor array is proposed. In signal measurement, there are two modes: first without using array capacitor and second using capacitor array. By using a simple algorithm that refers to the measurement strategy, it is possible to immediately know which channel pair is experiencing problem. Measurement consistency on each channel is analyzed using the correlation coefficient (R) resulting an average value of 0.9387.