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Two-dimensional optical fibre beam microvibration sensor and use thereof

A technology of optical fiber sensor and two-dimensional optical fiber, which is applied in the directions of using optical devices to transmit sensing components, measuring vibration, and vibration measurement in solids. The effect of simple structure

Inactive Publication Date: 2003-06-18
JIABEI PHOTOELECTRIC IND RES SHANGHAI
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

In addition, environmental noise, sensor installation method and wire laying method all have a great influence on the detection results
[0004] The sensing detectors of foreign test instruments mainly have optical vibration sensing, and the sensing is composed of spring plates loaded with gratings; there are many occasions that require micro-vibration sensing probes not to be charged, and need to work in an environment of electromagnetic interference, and some The requirement must be detected online, so it cannot meet the requirement

Method used

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  • Two-dimensional optical fibre beam microvibration sensor and use thereof
  • Two-dimensional optical fibre beam microvibration sensor and use thereof

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Embodiment Construction

[0011] According to the accompanying drawings, take a single quartz fiber 3 with a large core diameter of 0.2 mm to 0.7 mm, fix it with an optical fiber fulcrum frame 4 at an appropriate position of the optical fiber 3, and then cure the optical fiber fulcrum frame 4 on the cylindrical outer shell 2 with glue one end of the fiber optic connector 5, and the other end of the outer casing 2 is equipped with the fiber optic bundle 1 through the first adapter 11, the light source is input from the fiber optic connector 5 end, and the light passes through the fiber optic connector 5→optical fiber 3→the second An adapter 11 output; the image conversion device is composed of a second adapter 11', an image converter 9, a power interface 6 and an electrical signal output port 7, the optical image is input from the second adapter 11', and the optical fiber bundle is passed through the image converter 9 1 The input light image is converted into an electrical signal output. The light sourc...

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Abstract

The present invention relates to micro-vibration optic fiber sensor of 2-D optic fiber cluster and its operating method. Micro-vibration optic fiber sensor of 2-D optic fiber cluster comprises housing, supporting point member for optic fiber, coupler for optic fiber, optic fiber cluster, first accommodator, image converting device for processing of optic signals, coupler for optic fiber cluster coupling the first accommodator to the image converting device. The image converting device comprises image converter, second accommodator coupled to the image converter, output port for electric signals and power connectors. The operating method of the micro-vibration optic fiber sensor of 2-D optic fiber cluster is that adjusting the length of the coupler of the optic fiber cluster, installing the housing of the micro-vibration optic fiber sensor of 2-D optic fiber cluster on the sensed object, and placing the image converter at another location.

Description

1. Technical field: [0001] The invention relates to a vibration sensor, in particular to a two-dimensional optical fiber bundle micro-vibration optical fiber sensor and a usage method. 2. Background technology: [0002] When large-scale instruments and equipment are working, there will be a certain range of small vibrations. Under normal circumstances, the amplitude of this vibration will not exceed a certain range. When equipment such as equipment and operation work abnormally, the vibration will also appear abnormal. In many cases, we hope to know the specific size and direction of this vibration, so as to obtain the critical value of abnormal vibration immediately, and take measures to rule out major accidents in equipment, flight and operation. [0003] In the early days of measuring vibration displacement, levers or gears / racks were used to amplify. This type of meter has disadvantages such as wear, inconvenient reading, and inability to transmit vibration signals. Ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/26G01H1/00
Inventor 殷宗敏陈世祥
Owner JIABEI PHOTOELECTRIC IND RES SHANGHAI
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