Withdrawal This article has been withdrawn by IOP Publishing due to the work containing
multiple figures that were reproduced from other sources without any evidence of permission …

Parasitic capacitance represents the main error source in measurement systems based on
electrical impedance spectroscopy. The capacitive nature of electrodes' impedance in …

In this article, we present a high-precision multifrequency electrical impedance tomography
(EIT) system for wide areas of medical applications. The system has 32 channels with full …

An impedance spectrum is calculated by the ratio between an injecting current and a
resulting measured voltage, which allows the extraction of electrical properties from the …

Bioimpedance measurement systems often use the Howland current sources to excite the
biological material under study. Usually, difference or instrumentation amplifiers are used to …

In this paper a number of LT Spice simulations have been carried out on an Electrical
Impedance Tomography (EIT) system, which includes the whole analog and digital circuitry …

Electrical Resistance Tomography (ERT) is a technique employed in the industrial
environment that reconstructs images formed by the impedance distributions inside a vessel …

In the recent decades the bioimpedance has been used in many areas of medicine. The
technological advance of electronics has enabled the increase of bioimpedance applica …

Wideband current sources that can work stable over a wide frequency range with large load
variations are critical for the performance of electrical impedance spectrum (EIS) …

This work presents the theoretical and error analysis, implementation, and validation
measurements of a high-power grounded-load voltage-controlled-current-source (VCCS) …