Device for testing acoustic pressure sensitivity of hydrophone

A sensitivity test, hydrophone technology, applied in the field of sensors, can solve the problems of high cost, large volume, high power of the shaking table, etc., and achieve the effect of preventing rollover

Inactive Publication Date: 2010-08-25
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In view of this, the main purpose of the present invention is to provide a hydrophone sound pressure sensitiv...

Method used

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  • Device for testing acoustic pressure sensitivity of hydrophone
  • Device for testing acoustic pressure sensitivity of hydrophone
  • Device for testing acoustic pressure sensitivity of hydrophone

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0030] Please refer to Fig. 1 to Fig. 2, this hydrophone sound pressure sensitivity testing device comprises: be installed on the vibrating table 20 on the foundation 10, be used to generate vibration signal; And be installed on the liquid column cylinder 30 above vibrating table 20, as test container; the hydrophone fixture 40 installed on the foundation 10 is used to clamp the hydrophone to be tested; the standard hydrophone 61 installed on the hydrophone fixture is used to measure the sound pressure; the liquid column cylinder 30 is connected And the spring 50 of the foundation 10 is used to adjust the working state of the liquid column cylinder and prevent rollover.

[0031] The movable part 21 of the vibration table ...

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Abstract

The invention discloses a device for testing acoustic pressure sensitivity of a hydrophone, which comprises a base (10), a vibration table (20), a liquid column cylinder (30), a hydrophone clamp (40), a standard hydrophone (61), and a spring (50), wherein the vibration table (20) is arranged on the base (10) and is used for generating vibration signals; the liquid column cylinder (30) is arranged above the vibration table (20) and is used as a testing container; the hydrophone clamp (40) is arranged on the base (10) and is used for clamping a hydrophone to be tested; the standard hydrophone (61) is arranged on the hydrophone clamp and is used for measuring the acoustic pressure; and the spring (50) is used for connecting the liquid column cylinder (30) and the base (10), adjusting the working state of the liquid column cylinder and preventing the liquid column cylinder from being turned over sideways. The device solves the problems of high power, large volume and high cost of the vibration table in the hydrophone.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a hydrophone sound pressure sensitivity testing device. Background technique [0002] A hydrophone is an instrument that detects signals such as pressure and sound in a liquid by using the characteristics of the material and various modulation effects generated by its interaction with the surrounding environment. In the civilian field, hydrophones can be used for oil exploration, marine biological monitoring, and seabed inspections by detecting underwater acoustic signals. In the military field, as the front end of the sonar system, the hydrophone is responsible for detecting enemy target signals. [0003] As an important piece of equipment, hydrophones must ensure good performance. Therefore, its performance must be tested during the production and use of hydrophones. The sound pressure sensitivity of the hydrophone is an important measured index. [0004] Among the traditio...

Claims

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Application Information

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IPC IPC(8): G01H3/00
Inventor 张文涛李学成李芳刘育梁
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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