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dc.contributorDepartment of Electrical Engineering-
dc.creatorJin, W-
dc.creatorMa, J-
dc.creatorHe, H-
dc.rightsAssignee: Shenzhen Res Inst The Hong Kong Polytechnic Universityen_US
dc.titleResonant type Fabry-Perot optical fiber sensor, manufacturing method and air pressure detecting methoden_US
dc.description.otherinformationInventor name used in this publication: 靳伟en_US
dc.description.otherinformationInventor name used in this publication: 马军en_US
dc.description.otherinformationInventor name used in this publication: 何海律en_US
dc.description.otherinformationTitle in Traditional Chinese: 諧振式法布裡‑珀羅光纖傳感器及製造和氣壓檢測方法en_US
dcterms.abstractThe invention provides a resonant type Fabry-Perot optical fiber sensor which comprises a sensor body and a through hole penetrating through the sensor body. One end of the through hole is provided with a graphene thin film for sensing the to-be-detected air pressure in an attached mode, and the other end of the through hole is provided with transmission optical fibers which penetrate through the through hole and are matched with the through hole. According to the resonant type Fabry-Perot optical fiber sensor, the air pressure of gas is calculated in the mode that graphene thin film resonant frequency changes are caused by damp of the gas to the graphene thin film, so that a closed Fabry-Perot cavity is not needed, and the manufacturing difficulty is reduced; the the original measurement thin film deformation quantity is replaced by resonance to further conduct air pressure measurement, and thin film material creeping caused by repeated film deformation is effectively reduced; digital frequency signals after probe laser detection are output after the sensor conducts detection, and result analysis can be conveniently carried out compared with light wave signals of an interferometric sensor. Stimulation and detection are carried out through the single transmission optical fibers, and long-distance air pressure measurement can be achieved, and the applicability of the sensor is greatly improved.-
dcterms.bibliographicCitation中国专利 ZL 201410206090.X-
dc.description.ros2016-2017 > Other Outputs > Patents granted-
dc.description.validate201806 bcrc-
dc.description.oaVersion of Recorden_US
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