Title:
CONICAL OPTICAL FIBER ACCELERATION SENSOR SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/206836
Kind Code:
A1
Abstract:
Disclosed is a conical optical fiber acceleration sensor system. The system comprises: a protective housing (10), an elastic base layer (50), a light source (80), a circulator (70), a coupler (30), an optical fiber phase modulator/demodulator (20), an isolator (90) and a photoelectric detector (100), wherein the elastic base layer (50) is arranged inside the protective housing (10) to divide a cavity in the protective housing (10) into an upper sub-cavity and a lower sub-cavity; an upper surface and a lower surface of the elastic base layer (50) are respectively provided with sensing optical fiber assemblies (40) for detecting deformation of the elastic base layer; the sensing optical fiber assemblies (40) are respectively connected to the optical fiber phase modulator/demodulator (20); the light source (80) is in coupled connection with the circulator (70); the circulator (70) is respectively in coupled connection with the coupler (30) and the photoelectric detector (100); the coupler (30) is respectively connected to the isolator (90) and the optical fiber phase modulator/demodulator (20); the isolator (90) is in coupled connection with the photoelectric detector (100); tail ends of the sensing optical fiber assemblies (40) are provided with reflecting layers; and monochromatic light generated by the light source (80) is divided, by means of the coupler (30), into two beams of light with equal intensities, and the two beams of light pass through the coupler (30) again after being reflected by the reflecting layers.
Inventors:
LIU QI (CN)
CHEN SHAOJIE (CN)
CHAI JING (CN)
CHEN SHAOJIE (CN)
CHAI JING (CN)
Application Number:
PCT/CN2019/091701
Publication Date:
October 15, 2020
Filing Date:
June 18, 2019
Export Citation:
Assignee:
UNIV SHANDONG SCIENCE & TECH (CN)
International Classes:
G01P15/03
Foreign References:
| CN108205070A | 2018-06-26 | |||
| CN201247049Y | 2009-05-27 | |||
| CN106053882A | 2016-10-26 | |||
| CN101788569A | 2010-07-28 | |||
| CN102411065A | 2012-04-11 | |||
| CN101639485A | 2010-02-03 | |||
| CN102495235A | 2012-06-13 | |||
| JP2014032054A | 2014-02-20 | |||
| US20060236762A1 | 2006-10-26 |
Other References:
XUE, YAN: "Non-official translation: Fabrication and Parameter Test of Optical Fiber Interferometric Acceleration Sensor", INFORMATION & TECHNOLOGY, CHINA MASTER’S THESES FULL-TEXT DATABASE, no. 2, 15 February 2017 (2017-02-15), ISSN: 1674-0246, DOI: 20191217152455Y
Attorney, Agent or Firm:
SHENZHEN GHZF INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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