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This study presents a high performance ion-selective field-effect-transistor (ISFET) based pH sensor utilizing commercial touch panel film (TPF) as the sensing material. The coated ITO/SiO2/Nb2O5 multilayer on the TPF is ideal for measuring dissociated hydrogen ions. A high transconductance MOSFET chip composed of 10 parallel FETs is used to convert the effective pH value into the equivalent gate...
A process, voltage and temperature (PVT) sensors with dynamic voltage selection are proposed for environmental management in the ultra-low voltage dynamic voltage and frequency scaling (DVFS) system. The process and voltage (PV) sensors initially monitor the process variation. With known process information, PV sensors can real-time provide voltage variation status. The temperature sensor has six...
A catalyst-free synthesis of ZnO nanostructures using platinum microheaters under ambient environmental conditions has been developed. Different types of ZnO nanostructures are synthesized from the oxidization of Zn thin film by local heating. The characterization of two shapes of Pt microheaters is investigated and the relationship between the applied power for heat generation and ZnO nanostructure...
The failure probability of sensitive equipment due to voltage sag usually depends on the characteristics of voltage sags and the voltage tolerance of equipment, they are both uncertainty. It is difficult to assess and predict equipment failure probability well and truly in practical engineering. The uncertain properties both of voltage sag and equipment tolerance are considered in this paper in order...
The extinction coil of automatic tuning is important in reducing grounding current, depressing flash and grounding surge. Before bringing into the electric grid, the equipment must be tested for the safe and equilibrium operating. In the article, through the simulation experiment on the magnetic biasing extinction coil, verified the validity of high/low voltage regulating characteristic for the all-digital...
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