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In this paper, a suitable mathematical model of piezoresistive accelerometer is developed and validated by simulation tests. A new relationship is found between the movement relative frequency and piezoresistive accelerometer natural frequency. This relationship is represented by a new formula that selects for each frequency range a suitable piezoresistive accelerometer and thus, resonance effect...
Bayesian model is developed for transformer faults diagnosis using dissolved gas in oil analysis. DGA (Dissolved Gas Analysis) is the traditional and conventional transformer fault diagnosis method, which mainly depends on the experience of operators and of the percentages of dissolved gases. In addition, the only measurement of the gases percentage is not sufficient to evaluate the equipment health...
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