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Piezoelectric composite standard reference hydrophone for the frequency rang 100～500kHz

Zhuo Xu

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Abstract

This paper describes a new standard reference hydrophone we fabricate for use in the frequency range 100～500kHz.For the sensor material is use the 1-3 piezoelectric composite.Experimental result show that the hydrophone receiving sensitivity of-194dB is high and has a flat frequency response in the range 100～500kHz,temperature and time test shows receiving sensitivity is stable with temperature and time change.It is a ideal hydrophone applied in middle frequency acoustic measurement.

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What this paper is about

This paper describes a new standard reference hydrophone we fabricate for use in the frequency range 100～500kHz.For the sensor material is use the 1-3 piezoelectric composite.Experimental result show that the hydrophone receiving sensitivity of-194dB is high and has a flat frequency response in the range 100～500kHz,temperature and time test shows receiving sensitivity is stable with temperature and time change.It is a ideal hydrophone applied in middle frequency acoustic measurement.

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Available abstract

This paper describes a new standard reference hydrophone we fabricate for use in the frequency range 100～500kHz.For the sensor material is use the 1-3 piezoelectric composite.Experimental result show that the hydrophone receiving sensitivity of-194dB is high and has a flat frequency response in the range 100～500kHz,temperature and time test shows receiving sensitivity is stable with temperature and time change.It is a ideal hydrophone applied in middle frequency acoustic measurement.

Key concepts: Hydrophone, Sensitivity (control systems), Acoustics, Piezoelectricity, Materials science, Engineering, Electronic engineering, Physics

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