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A novel, highly sensitive dual-parameter sensor based on a composite interference structure has been designed and implemented in this paper. The sensor was composed of a Fabry–Pérot interferometer, where the microcavity was filled by magnetic fluid (MF) and a Mach–Zehnder interferometer, where the photonic crystal fiber was filled with ethanol. The refractive index of the MF and ethanol would be changed...
High reliability is required for mini-type electromagnetic relays, which is achieved by optimized cooperation of suction force provided by magnetic system and reaction loads providing by springs. Consequently, precise measuring on the suction force and the reaction force plays a key role in affairs with reliability involving in for the relay because 1) it provides a method to evaluate cooperation...
Moisture content of oil and paper is one of the most important factors influencing the dielectric behavior of insulation systems. Moisture estimation in insulating paper can provide a way to understand the real condition of insulation and helps to assess its remaining useful life. In recent years, Frequency Domain Spectroscopy (FDS) is widely used by power utilities for moisture estimation and condition...
[Objective] This paper focuses on analyzing the energy resources and precipitation trends to the context of global warming in the western Liaoning Province in recent 60 years, where located in the northern hemisphere. Provide the basis study for the adjustment of agricultural structure and full use of energy resources. [Method] Use meteorological data of three cities in western Liaoning Province during...
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