Title: Pipe displace ment sensor of optical fibre grating marmen
Application Number: 200610134266 Application Date: 2006.11.10
Publication Number: 1948897 Publication Date: 2007.04.18
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01B11/02;G01D5/353;C22C1/00;G02B6/46
Applicant(s) Name: Dalian Univ. of Tech. Address:
Inventor(s) Name: Ren Liang;Li Hongnan
Attorney & Agent: houmeng yuan libao yuan
Abstract:
    The invention relates to contacting type optical fiber raster shape memory alloy pipe displacement transducer. Its features are that it is made up of bearing, protecting steel tube, spring, and optical fiber raster strain gage with double layer steel tube composite structure; it uses epoxy resin to seal the optical fiber taster in to the 0.5mm steel tube which assembles with two 1.2mm steel tubes to form optical fiber raster strain gage of which one end is connected with 1.2mm hollow steel tube; another end is connected with the spring and set in the bearing. The advantages of the invention are that little volume and high measuring precision, setting many sensors at one optical fiber to do multipoint distributivity measuring, connecting with various sensors based on optical fiber raster technique in series.
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