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- W2392308274 abstract "The hydropower generating units' vibration parameter is an important index to monitor its operating stability.To measure the low-frequency vibration of the large and middle scale of hydropower generating units,according to frequency characteristic compensation principle of the vibration sensor,a low-frequency compensating circuit is designed to extend the frequency characteristics to the low frequency region.To make the design of compensating circuit convenient,the equivalent quality factor Q is brought in.The mathematical model of the magnetoelectric vibration sensor and the design of the compensation circuit are described in detail.The amplitude-frequency characteristics of the sensor and its mathematical model are comparatively analyzed before and after compensation respectively.The experimental result shows that the design could extend the amplitude-frequency characteristics to the low frequency region,and have good stability and linearity." @default.
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- W2392308274 date "2011-01-01" @default.
- W2392308274 modified "2023-09-27" @default.
- W2392308274 title "Research on the measurement of low-frequency vibration of water turbine generators" @default.
- W2392308274 hasPublicationYear "2011" @default.
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