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1. 发明授权

US5194847A Apparatus and method for fiber optic intrusion sensing 失效
标题翻译：光纤入侵检测装置及方法
公开(公告)号：US5194847A
公开(公告)日：1993-03-16
申请号：US737449
申请日：1991-07-29
申请人： Henry F. Taylor , Chung E. Lee
发明人： Henry F. Taylor , Chung E. Lee
IPC分类号： G01H9/00 , G01L1/24 , G01L11/02 , G08B13/12 , G08B13/186
CPC分类号： G08B13/122 , G01H9/004 , G01L1/242 , G01L11/025 , G08B13/186
摘要： Apparatus for sensing intrusion into a predefined perimeter comprises means for producing a coherent pulsed light, which is injected into an optical sensing fiber having a first predetermined length and positioned along the predefined perimeter. A backscattered light in response to receiving the coherent light pulses is produced and coupled into an optical receiving fiber. The backscattered light is detected by a photodetector and a signal indicative of the backscattered light is produced. An intrusion is detectable from the produced signal as indicated by a change in the backscattered light. To increase the sensitivity of the apparatus, a reference fiber and an interferometer may also be employed.
摘要翻译：用于感测侵入预定周界的设备包括用于产生相干脉冲光的装置，其被注入到具有第一预定长度并且沿预定周界定位的光学感测光纤中。响应于接收到相干光脉冲的反向散射光产生并耦合到光接收光纤中。后向散射光由光电检测器检测，产生指示背散射光的信号。可以从所产生的信号中检测入侵，如反向散射光的变化所示。为了提高装置的灵敏度，还可以使用参考光纤和干涉仪。

2. 发明授权

US06281976B1 Fiber optic fiber Fabry-Perot interferometer diaphragm sensor and method of measurement 失效
标题翻译：光纤法布里 - 珀罗干涉仪膜片传感器及测量方法
公开(公告)号：US06281976B1
公开(公告)日：2001-08-28
申请号：US09057410
申请日：1998-04-08
申请人： Henry F. Taylor , Ta-Wei Kao , James Gardner , William N. Gibler , Robert A. Atkins , Chung E. Lee , Victor P. Swenson , Matthew Spears , Robert X. Perez
发明人： Henry F. Taylor , Ta-Wei Kao , James Gardner , William N. Gibler , Robert A. Atkins , Chung E. Lee , Victor P. Swenson , Matthew Spears , Robert X. Perez
IPC分类号： G01B902
CPC分类号： G01P15/093 , G01L9/0079
摘要： A fiber optic fiber Fabry-Perot interferometer diaphragm sensor and method of measurement is provided. A fiber Fabry-Perot interferometer diaphragm sensor (12a, 12b, 12c) includes a base (54a, 54b, 54c) and a diaphragm (52a, 52b, 52c) with an optic fiber (30) coupled under tension between the base (54a, 54b, 54c) and the diaphragm (52a, 52b, 52c). A fiber Fabry-Perot interferometer element (40) is contained within the optic fiber (30) and operates to sense movement of the diaphragm (52a, 52b, 52c). In a particular embodiment, the diaphragm (52a) moves in response to a pressure (P) applied to the diaphragm (52a). In another embodiment, a proof mass (72) is coupled to the diaphragm (52b) such that the diaphragm (52b) moves in response to an acceleration (A). In yet another embodiment, a magnetic body (80) is coupled to the diaphragm (52c) such that the diaphragm (52c) moves in response to a magnetic field (M).
摘要翻译：提供了一种光纤法布里 - 珀罗干涉仪膜片传感器和测量方法。光纤法布里 - 珀罗干涉仪光阑传感器（12a，12b，12c）包括基部（54a，54b，54c）和隔膜（52a，52b，52c），光阑（52a，52b，52c），54b，54c）和隔膜（52a，52b，52c）。纤维法布里 - 珀罗干涉仪元件（40）被包含在光纤（30）内并用于感测隔膜（52a，52b，52c）的运动。在特定实施例中，隔膜（52a）响应于施加到隔膜（52a）的压力（P）而移动。在另一个实施例中，检测质量块（72）耦合到隔膜（52b），使得隔膜（52b）响应于加速度（A）移动。在另一个实施例中，磁体（80）耦合到隔膜（52c），使得隔膜（52c）响应于磁场（M）移动。

3. 发明授权

US5557406A Signal conditioning unit for fiber optic sensors 失效
标题翻译：光纤传感器信号调理单元
公开(公告)号：US5557406A
公开(公告)日：1996-09-17
申请号：US395448
申请日：1995-02-28
申请人： Henry F. Taylor , Roberto Sadkowski , Chung E. Lee
发明人： Henry F. Taylor , Roberto Sadkowski , Chung E. Lee
IPC分类号： G01D5/353 , G01B9/02
CPC分类号： G01D5/35303
摘要： Apparatus and method (10, 50) for determining the value of a measurand measured by a fiber optic interferometer sensor (24, 72, 110) is provided. The apparatus includes a light source (16, 58, 102) emitting a light having a periodically modulated frequency which is injected into the interferometric sensor. A modulation cycle is initiated by the microcontroller's (12, 56, 116) generation of a trigger signal. A counter (42, 86) begins counting in response to the trigger signal. A first photodetector (20, 66) is coupled to the light source (16, 58, 102) and produces a first electrical signal proportional to the light. A second photodetector (36, 76, 114) is coupled to the fiber optic interferometer sensor (24, 72, 110) and produces a second electrical signal proportional to the light reflected by the sensor or passed through the sensor and affected by the measurand. A comparator (40, 82, 116) compares the second electrical signal with the first electrical signal and detects a crossing of the first and second electrical signals. The counter (42, 86) stops counting in response to a detected signal crossing. The microcontroller (12, 56, 116) then computes a measurand value from the count value for each modulation cycle.
摘要翻译：提供了用于确定由光纤干涉仪传感器（24,72,110）测量的被测量的值的装置和方法（10,50）。该装置包括发射具有周期性调制频率的光的光源（16,58,102），其被注入到干涉测量传感器中。调制周期由微控制器（12,56,116）产生触发信号启动。计数器（42,86）响应于触发信号开始计数。第一光电检测器（20,66）耦合到光源（16,58,102），并产生与光成比例的第一电信号。第二光电检测器（36,76,114）耦合到光纤干涉仪传感器（24,72,110），并产生与由传感器反射的光成比例的或通过传感器并受被测量影响的第二电信号。比较器（40,82,116）将第二电信号与第一电信号进行比较，并检测第一和第二电信号的交叉。计数器（42,48）响应于检测到的信号交叉而停止计数。微控制器（12,56,116）然后从每个调制周期的计数值计算被测量值。

4. 发明授权

US07628531B2 Methods and apparatus for dual source calibration for distributed temperature systems 有权
标题翻译：分布式温度系统双源校准的方法和装置
公开(公告)号：US07628531B2
公开(公告)日：2009-12-08
申请号：US11685637
申请日：2007-03-13
申请人： Chung E. Lee , Kent Kalar , Michael E. Sanders
发明人： Chung E. Lee , Kent Kalar , Michael E. Sanders
IPC分类号： G01K15/00 , G01K3/00 , G01K11/00 , G01J5/00
CPC分类号： G01N17/00 , G01K11/32 , G01K15/00 , G01N21/7703
摘要： Systems and methods for calibrating a temperature sensing system are disclosed. In one respect, a dual light source configuration may be provided. A first light source may illuminate a sensing fiber and an anti-Stokes band may be detected. A second light source may illuminate a sensing fiber and a Stokes band may be detected, where the Stokes band is substantially similar to the anti-Stokes band of the first light source. A ratio between the anti-Stokes and Stokes band may be used to calibrate a temperature sensing system.
摘要翻译：公开了用于校准温度感测系统的系统和方法。在一个方面，可以提供双光源配置。第一光源可以照亮感测光纤并且可以检测到反斯托克斯带。第二光源可以照亮感测光纤，并且可以检测斯托克斯带，其中斯托克斯带基本上类似于第一光源的反斯托克斯带。反斯托克斯和斯托克斯带之间的比率可用于校准温度感测系统。

5. 发明授权

US07628533B2 Systems and methods for detecting corrosion 有权
标题翻译：用于检测腐蚀的系统和方法
公开(公告)号：US07628533B2
公开(公告)日：2009-12-08
申请号：US11876511
申请日：2007-10-22
申请人： Chung E. Lee , William Hallidy
发明人： Chung E. Lee , William Hallidy
IPC分类号： G01N25/00 , G01J5/00 , G01K11/00
CPC分类号： G01N21/7703 , G01N2021/7716 , G01N2021/7786
摘要： Systems and methods for detecting corrosion are provided. In one embodiment, a luminescent material coupled to a cladding of an optical fiber may be altered when exposed to corrosion. The backscatter emission of the luminescent material, which includes the altered optical properties, may be used to determine properties of the corrosion including, for example, thickness, or location of the corrosion.
摘要翻译：提供了检测腐蚀的系统和方法。在一个实施例中，当暴露于腐蚀时，耦合到光纤的包层的发光材料可以改变。包括改变的光学性质的发光材料的反向散射可以用于确定腐蚀的性质，包括例如腐蚀的厚度或位置。

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