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Domestic sewage treatment is a hot research topic in recent years. The testing methods for the quality of treated water are usually based on chemical techniques, which are more accurate, but are time-consuming, complex operation, and may lead to secondary pollution. In this paper, we propose an electrical method to detect domestic sewage on different stages of water treatment. A portable inspection...
this paper presented the design of a data acquisition system for Cellular Impedance Measurement (CIM) application. The hardware architecture of the system mainly consists of a micro electrode array, a stimulation circuit, a sensing circuit, a multi-function card and a PXI-E based Chassis. The test results prove that the proposed system has excellent phase accuracy (error <0.05%) and magnitude accuracy...
This paper proposes a portable electrical impedance tomography telemedicine system which supports field diagnosis and electronic medical record building. The system includes portable client endpoint, cloud-based database and central server. In order to monitor and record user's long-term state of health, it establishes personal on-line medical record database by cloud storage technique. The communication...
This paper presented the design method of a novel digital phantom for electrical impedance tomography system calibration. By current sensing, voltage generating circuitry and digital processing algorithms implemented in FPGA, the digital phantom can simulate different impedances of tissues. The hardware of the digital phantom mainly consists of current sensing section, voltage generating section,...
The ECT sensor based on electrical permittivity measurements is presented which may be applied to security application for contactless detection of flammable and explosive liquid. The structure, geometry and size of ECT sensor are discussed in this paper; two types of capacitance sensor are designed and compared. COMSOL simulation software is used to evaluate the performance of designed sensor. An...
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