Study on Dual-Frequency Imaging of Capacitively Coupled Electrical Impedance Tomography: Frequency Optimization

In this work, a new dual-frequency imaging framework of capacitively coupled electrical impedance tomography (CCEIT) is presented. Unlike conventional single-frequency and recently emerged multi-frequency imaging, the adopts two different working frequencies to obtain real part imaginary impedance, respectively. With image reconstructed at frequencies, further introduces fusion fused image. To achieve optimal selection data collection in wide frequency range carried out with 12-electrode CCEIT sensor, an analyzer, computer measurements. The then analyzed depth other aspects, including sensitivity distribution quality are also investigated. Research results show that low recommended for part, while relatively high part. Within investigated 200 kHz - 20 MHz, optimized respectively under setups. Results verification experiment proposed effective. Compared CCEIT, has much better performance.