发明授权
- 专利标题： Sensor for measuring flow speed of a fluid
- 专利标题（中）： 用于测量流体流速的传感器
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申请号： US13181502申请日： 2011-07-12
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公开(公告)号： US09557344B2公开(公告)日： 2017-01-31
- 发明人: Hwayaw Tam , Aping Zhang , Shaorui Gao , Lok Hin Cho
- 申请人： Hwayaw Tam , Aping Zhang , Shaorui Gao , Lok Hin Cho
- 申请人地址： HK Hong Kong
- 专利权人： The Hong Kong Polytechnic University
- 当前专利权人： The Hong Kong Polytechnic University
- 当前专利权人地址： HK Hong Kong
- 代理机构： KPPB LLP
- 主分类号： G02B6/00
- IPC分类号： G02B6/00 ; G01P5/10 ; G01F1/688 ; G02B6/02 ; G02B6/12
摘要：
A sensor for measuring flow speed of a fluid, comprising: a light-absorbing optical fiber having a fiber Bragg grating inscribed in the fiber; wherein light is emitted into the light-absorbing optical fiber to heat the optical fiber and the fiber Bragg grating, and when the fluid passes over the sensor, the flow speed of the fluid is determined by the rate of heat loss from the sensor, and the temperature of the sensor is determined from the wavelength shift of the central wavelength of the fiber Bragg grating.
公开/授权文献
- US20130014577A1 Sensor for measuring flow speed of a fluid 公开/授权日：2013-01-17
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