High hydrostatic pressure-resistant small piezoelectric hydrophone and manufacturing method thereof
A hydrophone and hydrostatic pressure technology, which is applied in the direction of instruments, seismic signal receivers, and seismology in areas covered by water, can solve the problems that cannot meet the needs of large-depth and high-water-pressure environments and hydrophone structures. And complex manufacturing process, can not withstand high hydrostatic pressure and other problems, to achieve the effect of simple and reliable structure, small size, high sound pressure sensitivity
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[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. While the invention will be described in conjunction with the preferred embodiments, it will be understood that it is not intended to limit the invention to the described embodiments. On the contrary, the invention is to cover alternatives, modifications and equivalents, which may be included within the scope of the invention as defined by the appended claims.
[0026] see Figure 1 to Figure 3 As shown, the small piezoelectric hydrophone resistant to high hydrostatic pressure includes high-strength polyurethane coating layer 5, piezoelectric ceramic round tube 1, flexible rubber plug 2, positioning ring 4, two thin wires with PVC sheath 3, etc. . The shape of the hydrophone is a cylinder, the outer surface is completely covered by high-strength polyurethane elastomer, and the coating layer 5 has a certain thickness; the electrodes on the outer surface ...
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