Fixing device for optical fiber hydrophone

A fiber optic hydrophone and fixing device technology, which is applied in the direction of measuring devices, instruments, measuring vibration, etc., can solve the problem that the axial acceleration cannot be offset, and achieve the effect of improving the acoustic sensitivity

Inactive Publication Date: 2013-12-11
武汉普惠海洋光电技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its axisymmetric structure, the mandrel-type fiber optic hydrophone itself has the effect of offsetting the lateral acceleration, but its axial acceleration cannot offset

Method used

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  • Fixing device for optical fiber hydrophone

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Embodiment Construction

[0014] The present invention will be further described in conjunction with the accompanying drawings.

[0015] Such as figure 1 As shown, the present invention is made up of optical fiber hydrophone protective casing 3, front packaging part 1, rear packaging part 4, and front packaging part 1, rear packaging part 4 are respectively fixed behind the two ends of optical fiber hydrophone 2 , the front packaging part and the rear packaging part are respectively fixed on the pressure-resistant shell of the optical fiber hydrophone. The front packaging part 1 and the rear packaging part 4 are all cylindrical structural parts, which are composed of a rigid outer ring and an elastic inner ring. Both ends of the pressure-resistant housing 3 are fixed, and the elastic inner rings of the front packaging part 1 and the rear packaging part 4 are respectively fixed with the optical fiber hydrophone 2. The elastic inner ring in the front packaging part 1 and the rear packaging part 4 can m...

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Abstract

The invention relates to a fixing device for an optical fiber hydrophone. The fixing device for the optical fiber hydrophone is composed of an optical fiber hydrophone protection outer shell, a front portion encapsulating component and a rear portion encapsulating component. The fixing device for the optical fiber hydrophone is characterized in that the front portion encapsulating component and the rear portion encapsulating component are fixed at the two ends of the optical fiber hydrophone respectively, and then the front portion encapsulating component and the rear portion encapsulating component are further fixed on the optical fiber hydrophone protection outer shell respectively. According to the fixing device for the optical fiber hydrophone, the optical fiber hydrophone is made not to make direct contact with the optical fiber hydrophone protection outer shell through the elastic vibration reducing front portion encapsulating component and the elastic vibration reducing rear portion encapsulating component, therefore, when the optical fiber hydrophone works, axial vibration and axial acceleration which are transmitted when the optical fiber hydrophone drag linear array is in a moving state can be reduced through the elastic vibration reducing front portion encapsulating component and the elastic vibration reducing rear portion encapsulating component, and thus the sound sensitivity of the optical hydrophone can be improved.

Description

technical field [0001] The invention relates to the technical field of underwater acoustic detection, in particular to an optical fiber hydrophone fixing device. Background technique [0002] Optical fiber hydrophone is a device used to detect acoustic signals in oceans and vast waters. It has important applications in civil fields such as military and oil exploration. In the military field, it is the core component of anti-submarine sonar. In the civilian field, it can be used for seismic wave detection, oil seismic exploration, marine fishery detection, etc. There are many structural forms of fiber optic hydrophones, including mandrel type, F-P type, Sag nac type, etc., among which the fiber optic hydrophone with air cavity mandrel has the advantages of high sensitivity and large frequency width. And is widely used. [0003] The optical fiber hydrophone towed linear array is a passive sonar whose acoustic vibration section is far away from the carrier, the depth of the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H3/00
Inventor 张海兵申和平
Owner 武汉普惠海洋光电技术有限公司
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