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On the basis of thick-film technology, a novel gap- variation-type thick-film capacitive micro-displacement sensor have been developed to detect nanometer-scaled displacement, using 96% A12O3 ceramic plates and Pd-Ag conducting paste via a print-fire process. This paper describes the principle, structural design and theoretic computation of the capacitive sensor. Factors affecting the sensors' resolution...
This paper describes a new technique based on sensor networks for detecting mine methane. By contrast to the traditional methane detection, it has advantages of avoiding unnecessary missed alarm, which might lead to a serious consequence. In order to reduce the complexity of numeric calculation and improve the real-time performance of detection, a radial basis function network is applied for estimating...
The aim of thermostatic detection is to control the current injected to Pt resistor to obtain the required operating temperature. Detecting current fluctuates with temperature, and general thermostatic detecting circuit needs a long time to achieve stability and can't remove the potential safety danger with close loop control. In order to solve this problem, we established a thermostatic detecting...
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