公开(公告)号：US20190078948A1

公开(公告)日：2019-03-14

申请号：US15985064

申请日：2018-05-21

Applicant: National Applied Research Laboratories

Inventor： Zheng-Kuan LEE

IPC: G01L1/24 ,  G02B6/02 ,  G01L5/10

Abstract: The optical fiber sensing method of the present invention includes steps of: joining heat shrinkable tubes to two ends of a sensing segment of an optical fiber; coupling a fixing element on the heat shrinkable tube below the sensing segment; detachably connecting at least one floating element to the fixing element; placing the floating element into a fluid; and providing an input signal to the sensing segment and generating an output signal after the input signal is processed by the sensing segment, wherein the tensile force applied to the sensing segment would change with variation of the buoyant force upon the floating element, resulting in change of the output signal. Accordingly, the optical fiber sensing method has numerous advantages, including rapid on-site construction, recyclability of components and changeability of design parameters.

公开(公告)号：US20230184583A1

公开(公告)日：2023-06-15

申请号：US17709375

申请日：2022-03-30

Applicant: National Applied Research Laboratories

Inventor： Zheng-Kuan LEE ,  Shyh-Bin CHIOU

IPC: G01H9/00 ,  G01H3/00

CPC classification number: G01H9/004 ,  G01H3/00

Abstract: The optical fiber sensing system is provided. The optical fiber sensing system comprises an optical fiber measuring module, a floating module, and a containing structure. The floating module disposed in the containing structure has a plurality of floating units. Each floating unit has a mass element and a vibration absorbing structure. It is adapted to apply appropriate tensile force to the optical fiber measuring module by adjusting counterweight of the quality bodies. The vibrating influence to the optical fiber measuring system would be reduced through the vibration absorbing structure.