Title:
MULTI-FUNCTIONAL DISTRIBUTED OPTICAL FIBRE SENSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/015426
Kind Code:
A1
Abstract:
Disclosed is a multi-functional distributed optical fibre sensing device, comprising a laser (1), a first optical fibre coupler (201), a second optical fibre coupler (202), a third optical fibre coupler (211), a fourth optical fibre coupler (212), an acoustic-optical modulator (3), an optical fibre annular device (4), an optical interface (5), a first photoelectric detector (601), a second photoelectric detector (602), a first bandpass filter (701), a second bandpass filter (702), a third bandpass filter (711), a fourth bandpass filter (712), a first low noise amplifier (801), a second low noise amplifier (802), an optical switch (9), a frequency synthesiser (10), a frequency mixer (11), a low pass filter (12), a dual-channel data collection and processing module (13), and a computer (14).
Inventors:
LV LIDONG (CN)
SUN XIAOYAN (CN)
TAO JING (CN)
YAO JIMING (CN)
LI BINGLIN (CN)
ZHONG CHENG (CN)
GUO JINGHONG (CN)
SUN XIAOYAN (CN)
TAO JING (CN)
YAO JIMING (CN)
LI BINGLIN (CN)
ZHONG CHENG (CN)
GUO JINGHONG (CN)
Application Number:
PCT/CN2018/091659
Publication Date:
January 24, 2019
Filing Date:
June 15, 2018
Export Citation:
Assignee:
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD (CN)
STATE GRID HEBEI ELECTRIC POWER CO LTD (CN)
STATE GRID CORP CHINA (CN)
STATE GRID HEBEI ELECTRIC POWER CO LTD (CN)
STATE GRID CORP CHINA (CN)
International Classes:
G01D5/36; G01K11/322; G01L1/24
Foreign References:
| CN107421570A | 2017-12-01 | |||
| CN106289337A | 2017-01-04 | |||
| CN103900623A | 2014-07-02 | |||
| CN105716638A | 2016-06-29 | |||
| CN204330014U | 2015-05-13 | |||
| CN105721048A | 2016-06-29 | |||
| KR101334364B1 | 2013-12-05 |
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
Download PDF: