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Intensity modulation-type optical fiber vibration sensor

An optical fiber vibration and intensity modulation technology, applied in instruments, measuring devices, measuring ultrasonic/sonic/infrasonic waves, etc., can solve problems such as waste of cost, and achieve the effects of simple and reasonable structure design, cost saving, and convenient operation

Inactive Publication Date: 2018-09-14
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem in the prior art that one type of optical fiber can only match one type of sensor, which is a waste of cost, and proposes an intensity-modulated optical fiber vibration sensor

Method used

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  • Intensity modulation-type optical fiber vibration sensor
  • Intensity modulation-type optical fiber vibration sensor
  • Intensity modulation-type optical fiber vibration sensor

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0024] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.

[0025] refer to Figure ...

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Abstract

The invention discloses an intensity modulation-type optical fiber vibration sensor, which comprises two semi-circular fixed frames and a display. The two semi-circular fixed frames are connected witheach other through a hinge, and the parts, far from the hinge joint, of the two semi-circular fixed frames are symmetrically provided with fixed plates in a fixed manner. The surfaces of the two fixed plates are in threaded connection with fastening bolts through screw holess. The surfaces of the two semi-circular fixed frames are in threaded connection with positioning bolts through four screw holes. The ends, stretching into the semi-circular fixed frames, of the positioning bolts are rotatingly connected with an arc-shaped placement plate. One side, far from the positioning bolts, of the arc-shaped placement plate is fixedly provided with a pressure sensor, and the surface of the arc-shaped placement plate is fixedly connected with the inner walls of the two semi-circular fixed framesthrough two symmetric telescoping rods. The sensor is simple and reasonable in structural design, is convenient to operate, can suitable for oil pipes with different diameters, and saves the cost.

Description

technical field [0001] The invention relates to the technical field of optical fiber sensors, in particular to an intensity modulation optical fiber vibration sensor. Background technique [0002] Optical fiber, short for optical fiber, is a fiber made of glass or plastic that acts as a means of light transmission. The transmission principle is 'total reflection of light'. Kao Kung, former president of the Chinese University of Hong Kong, and George A. Hockham first proposed the idea that optical fibers could be used for communication transmission, for which Kao Kung won the 2009 Nobel Prize in Physics. [0003] A sensor (English name: transducer / sensor) is a detection device that can sense the measured information and convert the sensed information into an electrical signal or other required form of information output according to a certain rule to meet the information requirements. transmission, processing, storage, display, recording and control requirements. [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H9/00
CPCG01H9/004
Inventor 董波
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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