Dielectric Dispersion Modulated Sensing of Yeast Suspension Electroporation.

A specific pulsed electric field protocol can be used to induce electroporation. This is used in the food industry for yeast pasteurization, in laboratories for generic transfer and the medical field for cancer treatment. The sensing of electroporation can be done with simple 'instantaneous' voltage-current analysis.

Investigation of Multi-Plane Scheme for Compensation of Fringe Effect of Electrical Resistance Tomography Sensor.

Conventional electrical resistance tomography (ERT) sensors suffer from the fringe effect, i.e., severe distortion of the electric field on both ends of the measurement electrodes, leading to a 3D sensing region for a 2D sensor.

Performance analysis of a digital capacitance measuring circuit.

This paper presents the design and study of a digital capacitance measuring circuit with theoretical analysis, numerical simulation, and experimental evaluation. The static and dynamic performances of the capacitance measuring circuit are first defined, including signal-to-noise ratio (SNR), standard deviation, accuracy, linearity, sensitivity, and response time, within a given measurement range. Then numerical simulation is carried out to analyze the SNR and standard deviation of the circuit, followed by experiments to validate the overall performance of the circuit.

Concentration depth distribution of grain boundary segregation measured by wavelength dispersive X-ray spectroscopy.

A method using wavelength dispersive X-ray spectroscopy (WDS) is applied to the measurement of grain boundary segregation of Sn in silicon steel. The quantification of monolayer concentration of Sn is acquired, which demonstrates an obvious segregation of Sn at grain boundaries. In consideration of the fact that segregated impurities (Sn or other species) distribute in multilayer and not just monolayer segregation can be characterized by WDS, the Gaussian distribution is applied to formulate the multilayer concentration depth distribution according to the measured total concentration.

Study on electrodynamic sensor of multi-modality system for multiphase flow measurement.

Accurate measurement of multiphase flows, including gas/solids, gas/liquid, and liquid/liquid flows, is still challenging. In principle, electrical capacitance tomography (ECT) can be used to measure the concentration of solids in a gas/solids flow and the liquid (e.g.