SERIES-CONNECTED INTEGRATED TEMPERATURE AND VIBRATION SENSOR EMPLOYING BLAZED GRATING AND FIBER BRAGG GRATING OPTICAL FIBER

WIPO Patent Application WO/2020/125305

A1

A series-connected integrated temperature and vibration sensor employing a blazed grating and a fiber Bragg grating optical fiber, for resolving the problem in the prior art in which integrated temperature and vibration sensors have a large zero drift, require regular maintenance and calibration, and do not provide sufficient sampling precision. The sensor comprises: a housing (200) provided with a fiber Bragg grating (500) and a blazed grating vibration measurement structure (600) therein; and an optical cable (100) having one end extending into an interior of the housing (200), and an optical fiber (110) leading out therefrom, the fiber Bragg grating (500) being inscribed at an upper portion of the optical fiber (110), and the blazed grating vibration measurement structure (600) being connected to a terminal end of the optical fiber (110). The sensor has a small volume, a simple and easy-to-assemble structure, small zero drift, and high resistance to electromagnetic interference, is free of electrical noise, and achieves high measurement precision and connection reliability.

ZHENG LIANGGUANG (CN)
ZHAO CHENGRUI (CN)
YANG DA (CN)
JIN BO (CN)
WU MINGMING (CN)

PCT/CN2019/119337

June 25, 2020

November 19, 2019

Click for automatic bibliography generation  

NINGBO CRRC TIMES TRANSDUCER TECH CO LTD (CN)

G01H9/00; G01K11/3206

CN109506765A	2019-03-22
CN109506766A	2019-03-22
US20160242653A1	2016-08-25
CN102062730A	2011-05-18
CN105353326A	2016-02-24
CN107917680A	2018-04-17
CN106443065A	2017-02-22
CN102183488A	2011-09-14
CN102175274A	2011-09-07

NINGBO YINZHOU SHENGFEI PATENT ATTORNEY (SPECIAL GENERAL PARTNERSHIP) (CN)

View/Download PDF      PDF Help

Previous Patent: IMAGING METHOD, IMAGING DEVICE, ELECTRONIC DEVICE, AND MEDIUM

Next Patent: INFORMATION INPUT METHOD AND DEVICE