The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 2018
Filed:
Sep. 05, 2016
Yizheng Chen, Jilin, CN;
Other;
Abstract
The present invention provides the sensor for measuring the relative sliding between two interfaces based on the principle of EFPI. The sensor comprises two optical fibers and two slopes arranged on the reflective slope. Each surface of the slope is disposed with reflecting surface; and the bottom of each optical fiber is arranged with reflecting end surface. The reflecting surfaces are perpendicular to each of an optical axis of the fiber, thus the Fabry-Perot cavity is formed between reflective end surface and emitting surface to measure the sliding of object B relative to object A in a plane. A fiber and a slope can also be further added to measure the sliding of object B relative to object A in a three dimensional space. The sensor does not affected by the temperature and electromagnetic interference; and has the advantages of high accuracy, strong resisting interference capability and durability. The present sensor has wide application, especially suitable for precisely measuring the sliding and the temperature of the structure under static and dynamic or long-term loading and thus can evaluate the safety of the structures.