Linearization Point and Frequency Selection for Complex-Valued Electrical Capacitance Tomography

Benefiting from the ability to image permittivity distribution of dielectric materials, electrical capacitance tomography (ECT) has been applied for multiphase flow metering decades as a contactless method. However, water-continuous brings challenges ECT since conductivity in water makes fail reconstruct distribution. Therefore, complex-valued (CV-ECT) is introduced both and based on measurements using same sensor head ECT. Different conventional ECT, investigation excitation frequency linearization point selection vital CV-ECT, information coupled with frequency. An eight-electrode CV-ECT system was set up obtain simulations experiments. The different phantoms over frequencies were conducted, images reconstructed elaborate range.