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公开(公告)号：EP3187833A4
公开(公告)日：2018-03-28
申请号：EP15834980
申请日：2015-08-19
申请人： NUCTECH CO LTD
发明人： YAO KAI , MAO XIANHUI , ZHAO ZONGLEI , JIANG TING , XIAO HANG
CPC分类号： G01D5/35306 , G01D3/0365 , G05D23/19 , G05D23/1928
摘要： An optical fiber grating demodulator and temperature control method thereof, the optical fiber grating demodulator comprises: an optical device; a temperature control system; a working cavity (107) for accommodating the optical device; an insulating layer (110) enclosing the working cavity (107) for isolating a heat exchange between the optical device and the exterior of the working cavity (107). The temperature control system is coupled to the working cavity (107) so as to adjust the temperature in the working cavity (107), thus greatly expanding the working temperature range of the optical fiber grating demodulator. [ Fig. 1 ]
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公开(公告)号：EP3187841A4
公开(公告)日：2018-04-25
申请号：EP15837059
申请日：2015-08-19
申请人： NUCTECH CO LTD
发明人： MAO XIANHUI , JIANG TING , ZHAI JIANGLAN , CONG YUSHU
摘要： A fibre bragg grating vibration sensor (100), comprising a base (120), vibration measurement elements (141, 142, 143) and fibre bragg gratings (171, 172, 173), wherein the vibration measurement element comprises a cantilever beam (200), and a first lug boss (211) and a second lug boss (212) which are axially arranged along the cantilever beam (200), one end of the vibration measurement elements (141, 142, 143) at the side of the first lug boss (211) is fixedly mounted on the base (120), one end of the vibration measurement elements at the side of the second lug boss (212) hangs in the air, and the fibre bragg gratings (171, 172, 173) are axially encapsulated on the vibration measurement elements (141, 142, 143) to sense the vibration of the vibration measurement elements (141, 142, 143).
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