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High-frequency composite material speed measurement transducer

A technology of composite materials and piezoelectric composite materials, which is applied in the field of new high-frequency composite material speed measuring transducers, can solve the problems of poor comprehensive performance, low use value, and low reliability, and improve the safety and resonance of the device. Single mode, satisfying the effect of broadband coding speed measurement

Inactive Publication Date: 2020-02-04
中国船舶重工集团公司第七0七研究所九江分部
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AI Technical Summary

Problems solved by technology

[0003] However, the transducers in the prior art pay more attention to the design concept, the actual use value is low, and only one or some performance indicators can be improved, and the comprehensive performance is poor; or the process is complicated and the reliability is low, so it is difficult to be practically used in engineering. practice

Method used

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  • High-frequency composite material speed measurement transducer
  • High-frequency composite material speed measurement transducer
  • High-frequency composite material speed measurement transducer

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Embodiment 1

[0036] A high-frequency composite material velocity measuring transducer, comprising a piezoelectric composite material layer 8, a foam body 10, a housing 11, a high-temperature wire and a cable 16; the piezoelectric composite material layer 8 is fixed in the housing 11 through the foam body 10, The piezoelectric composite material layer 8 is electrically connected to the cable 16 through a high-temperature wire, and the cable 16 is connected to the external structure.

[0037] In order to further optimize the technical solution, the piezoelectric composite material layer 8, the foam body 10 and the shell 11 are bonded by silica gel, and epoxy resin glue is used to fill the gaps.

[0038] In order to further optimize the technical solution, the piezoelectric composite material layer 8 is sequentially connected by the silver layer 1, the piezoelectric ceramic layer 2 and the polymer layer 3; the silver layer 1 and the polymer layer 3 are respectively connected with high-temperat...

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Abstract

The invention discloses a high-frequency composite material speed measurement transducer. The high-frequency composite material speed measurement transducer comprises a piezoelectric composite material layer, a foam body, a housing, a high-temperature wire and a cable, wherein the piezoelectric composite material layer is fixed in the housing through the foam body, the piezoelectric composite material layer is electrically connected with the cable through the high-temperature wire, and the cable is connected with an external structure. The high-frequency composite material speed measurement transducer can meet the bandwidth requirement of broadband coding speed measurement equipment, is single in mode, high in voltage sending sensitivity and voltage receiving sensitivity, stable in performance and high in reliability, and has the characteristic that the hydrostatic pressure bearing capacity exceeds 1 MPa.

Description

technical field [0001] The invention relates to the technical field of underwater acoustic speed measurement, and more specifically relates to a novel high-frequency composite material speed measurement transducer. Background technique [0002] The speed measurement transducer can realize the mutual conversion between electric energy and sound energy, and is an important part of speed measurement, depth sounding and flow measurement equipment. In the process of engineering practice, multiple performance indicators of the speed measuring transducer directly affect the overall performance of the acoustic equipment, for example: the hydrostatic pressure resistance of the transducer directly determines the hydrostatic pressure resistance of the acoustic equipment; the transducer The bandwidth determines whether more complex modulation signals can be used; the sending voltage response and receiving voltage / current sensitivity determine the operating distance of the acoustic devic...

Claims

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Application Information

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IPC IPC(8): B06B1/06G01P1/00
CPCB06B1/06G01P1/00
Inventor 夏雨何春海芮成江谢华伟殷宗亮董可杰
Owner 中国船舶重工集团公司第七0七研究所九江分部
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