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    • 9. 发明授权
    • Distributed optical fiber temperature sensor based on optical fiber delay
    • 基于光纤延迟的分布式光纤温度传感器
    • US08734011B2
    • 2014-05-27
    • US13464991
    • 2012-05-06
    • Qi QiuJun SuShuangjin ShiYun LiaoCaidong Xiong
    • Qi QiuJun SuShuangjin ShiYun LiaoCaidong Xiong
    • G01K11/00G02B6/00
    • G01K11/32
    • The present invention discloses distributed optical fiber temperature sensor based on optical fiber delay technology, including a tunable optical transmitter module, an optical receiver module, a signal processing and controlling module and multiple distributed sensing modules connected in series via transmission fibers. The multiple wavelengths optical signals transmitted from the tunable optical transmitter module respectively are transmitted into the first sensing module, and then transmitted out from the last sensing module. The output multiple wavelengths optical signals arrive at the optical receiver module. The optical receiver module converts optical signals of all wavelengths into electrical signals and transmits them into the signal processing and controlling module. The signal processing and controlling module measures transmission delay time of optical signal of each wavelength respectively, and calculates and obtains the temperature parameters of corresponding distributed testing positions based on the relative delay time.
    • 本发明公开了一种基于光纤延迟技术的分布式光纤温度传感器,包括可调谐光发射机模块,光接收模块,信号处理和控制模块以及通过传输光纤串联连接的多个分布式感测模块。 从可调谐光发射机模块发送的多波长光信号分别传送到第一感测模块,然后从最后一个感测模块传出。 输出多波长光信号到达光接收模块。 光接收模块将所有波长的光信号转换为电信号,并将其传输到信号处理和控制模块。 信号处理和控制模块分别测量每个波长的光信号的传输延迟时间,并根据相对延迟时间计算并获得相应的分布测试位置的温度参数。
    • 10. 发明申请
    • Distributed optical fiber temperature sensor based on optical fiber delay
    • 基于光纤延迟的分布式光纤温度传感器
    • US20130148691A1
    • 2013-06-13
    • US13464991
    • 2012-05-06
    • Qi QiuJun SuShuangjin ShiYun LiaoCaidong Xiong
    • Qi QiuJun SuShuangjin ShiYun LiaoCaidong Xiong
    • G01K11/32
    • G01K11/32
    • The present invention discloses distributed optical fiber temperature sensor based on optical fiber delay technology, including a tunable optical transmitter module, an optical receiver module, a signal processing and controlling module and multiple distributed sensing modules connected in series via transmission fibers. The multiple wavelengths optical signals transmitted from the tunable optical transmitter module respectively are transmitted into the first sensing module, and then transmitted out from the last sensing module. The output multiple wavelengths optical signals arrive at the optical receiver module. The optical receiver module converts optical signals of all wavelengths into electrical signals and transmits them into the signal processing and controlling module. The signal processing and controlling module measures transmission delay time of optical signal of each wavelength respectively, and calculates and obtains the temperature parameters of corresponding distributed testing positions based on the relative delay time.
    • 本发明公开了一种基于光纤延迟技术的分布式光纤温度传感器,包括可调谐光发射机模块,光接收模块,信号处理和控制模块以及通过传输光纤串联连接的多个分布式感测模块。 从可调谐光发射机模块发送的多波长光信号分别传送到第一感测模块,然后从最后一个感测模块传出。 输出多波长光信号到达光接收模块。 光接收模块将所有波长的光信号转换为电信号,并将其传输到信号处理和控制模块。 信号处理和控制模块分别测量每个波长的光信号的传输延迟时间,并根据相对延迟时间计算并获得相应的分布测试位置的温度参数。