METHOD AND STRUCTURE FOR DIMINISHING SIGNAL INTERFERENCE OF TRANSMISSION PATH OF OPTICAL FIBRE INTERFERENCE SYSTEM

WIPO Patent Application WO/2015/051759

A1

A method for diminishing the signal interference of a transmission path of an optical fibre interference system, belonging to the technical field of optical fibre sensing. A wavelength division multiplexer (19) is connected in series to the end of an induced optical fibre, a wavelength component (λ2) is separated from an operating path by means of the wavelength division multiplexer (19) so as to measure a signal picked up by a transmission path, and the signal is removed from overall interference sensing signals by taking same as a reference, thereby obtaining a target measurement signal. Also provided is a structure for diminishing the signal interference of a transmission path of an optical fibre interference system. The method and the structure are simple; moreover, the device connected to the end of an induced optical fibre is passive, so that power supply is not required, and it is easy to implement. The present invention can be used for a sensing structure with a single measurement point and can be used in a sensing structure with a plurality of discontinuous measurement points as well.

JPS54130149	PHOTOELECTRIC CELL TYPE PATTERN DETECTOR
JP2003028671	OPTICAL ENCODER

JIA BO (CN)
XIAO QIAN (CN)
WU YUAN (CN)

PCT/CN2014/088327

April 16, 2015

October 10, 2014

Click for automatic bibliography generation  

UNIV FUDAN (CN)

G01D5/34

CN103499356A	2014-01-08
CN102064884A	2011-05-18
CN101561536A	2009-10-21
CN102117525A	2011-07-06
CN103323040A	2013-09-25
CN101013025A	2007-08-08
US5068528A	1991-11-26
DE2903821A1	1980-08-07

XU&PARTNERS,LLC. (CN)
上海一平知识产权代理有限公司 (CN)

View/Download PDF      PDF Help

Previous Patent: METHOD AND SYSTEM USING WAVELENGTH DIVISION MULTIPLEXING FOR ELIMINATING AND REDUCING LIGHT DIFFUSIO...

Next Patent: GABAB RECEPTOR NEGATIVE ALLOSTERIC MODULATOR AND MEDICAL USE THEREOF