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公开(公告)号：US07502531B2
公开(公告)日：2009-03-10
申请号：US11314729
申请日：2005-12-21
摘要： A method and apparatus for monitoring one or more environmental parameters using interferometric sensor(s), a cross-correlator, a two-dimensional photosensitive array and optical focusing means are described. The method and apparatus allows for near simultaneous monitoring of the parameter(s) of interest.
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2.发明授权Method and apparatus for continuous readout of Fabry-Perot fiber optic sensor 有权连续读出法布里 - 珀罗光纤传感器的方法和装置公开(公告)号：US07492463B2
公开(公告)日：2009-02-17
申请号：US11105651
申请日：2005-04-14
CPC分类号： G01B9/02023 , G01B9/02004 , G01B2290/25 , G01D5/268 , G01D5/35303 , G01L9/0079
摘要： A pressure measurement system and method are described. The system uses a tunable laser and a Fabry-Perot sensor with integrated transducer. A detector senses the light modulated by the Fabry-Perot sensor. A signal conditioner, which can be located up to 15 km away, then uses the detector signal to determine the displacement of the diaphragm, which is indicative of pressure exerted against the diaphragm. Use of a temperature sensor to generate a signal, fed to the signal conditioner, to compensate for temperature is also contemplated.
摘要翻译： 描述了压力测量系统和方法。 该系统使用可调谐激光器和带有集成传感器的法布里 - 珀罗传感器。 检测器感测法布里 - 珀罗传感器调制的光。 可以位于距离15公里的信号调节器，然后使用检测器信号来确定隔膜的位移，其指示施加在隔膜上的压力。 还考虑使用温度传感器来产生馈送到信号调节器以补偿温度的信号。
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3.发明授权Interferometric signal conditioner for measurement of absolute static displacements and dynamic displacements of a Fabry-Perot interferometer 有权用于测量法布里 - 珀罗干涉仪的绝对静态位移和动态位移的干涉信号调理器公开(公告)号：US07305158B2
公开(公告)日：2007-12-04
申请号：US11048521
申请日：2005-02-01
CPC分类号： G01B9/02007 , G01B9/02027 , G01B9/02057 , G01B9/0209 , G01B2290/25 , G01B2290/45
摘要： A signal conditioner to measure the length of an interferometric gap in a Fabry-Perot sensor (interferometer). The invention includes a light source, a Fabry-Perot interferometer capable of spanning a range of gaps in response to physical changes in the environment, a second interferometer that is placed in series with the Fabry-Perot interferometer which does not filter any particular wavelengths of light but acts as an optical cross-correlator, a detector for converting the correlated light signal into electronic signals, and an electronic processor which controls system elements and generates a signal indicative of the length of the gap spanned by the Fabry-Perot sensor.
摘要翻译： 用于测量法布里 - 珀罗传感器（干涉仪）中干涉间隙长度的信号调节器。 本发明包括光源，法布里 - 珀罗干涉仪，其能够响应于环境中的物理变化而跨越一定范围的间隙;第二干涉仪与法布里 - 珀罗干涉仪串联放置，该干涉仪不过滤任何特定波长的 光，但用作光学互相关器，用于将相关光信号转换为电子信号的检测器，以及控制系统元件并产生指示由法布里 - 珀罗传感器跨越的间隙的长度的信号的电子处理器。
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4.发明申请METHOD AND APPARATUS FOR CONTINUOUS READOUT OF FABRY-PEROT FIBER OPTIC SENSOR 有权用于连续读取FABRY-PEROT光纤传感器的方法和装置公开(公告)号：US20090225325A1
公开(公告)日：2009-09-10
申请号：US12371817
申请日：2009-02-16
IPC分类号： G01B9/02
CPC分类号： G01B9/02023 , G01B9/02004 , G01B2290/25 , G01D5/268 , G01D5/35303 , G01L9/0079
摘要： A pressure measurement system and method are described. The system uses a tunable laser and a Fabry-Perot sensor with integrated transducer. A detector senses the light modulated by the Fabry-Perot sensor. A signal conditioner, which can be located up to 15 km away, then uses the detector signal to determine the displacement of the diaphragm, which is indicative of pressure exerted against the diaphragm. Use of a temperature sensor to generate a signal, fed to the signal conditioner, to compensate for temperature is also contemplated.
摘要翻译： 描述了压力测量系统和方法。 该系统使用可调谐激光器和带有集成传感器的法布里 - 珀罗传感器。 检测器感测法布里 - 珀罗传感器调制的光。 可以位于距离15公里的信号调节器，然后使用检测器信号来确定隔膜的位移，其指示施加在隔膜上的压力。 还考虑使用温度传感器来产生馈送到信号调节器以补偿温度的信号。
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公开(公告)号：US07443510B2
公开(公告)日：2008-10-28
申请号：US11314952
申请日：2005-12-21
IPC分类号： G01B9/02
CPC分类号： G01B11/14 , G01B9/02004 , G01B2290/25 , G01D5/268
摘要： A method for monitoring changes in a gap which corresponds to changes in a particular environmental parameter using a tunable laser and interferometer at high frequency is disclosed. The laser light provided to the interferometer is swept through a small range of wavelengths. Light modulated by the interferometer is detected and a non-sinusoidal light intensity output curve is created, a reference point on the curve identified and subsequent sweep of the laser performed. The difference in time, wavelength, or frequency at the occurrence of the reference point between the two sweeps allows for measuring the relative changes in the gap and, as a result, the change in the environmental parameter.
摘要翻译： 公开了一种利用高频率的可调谐激光器和干涉仪来监测与特定环境参数变化相对应的间隙变化的方法。 提供给干涉仪的激光扫过一小段波长。 检测由干涉仪调制的光，并产生非正弦光强度输出曲线，确定曲线上的参考点和随后的激光扫描。 两次扫描之间的参考点出现时间，波长或频率的差异允许测量间隙的相对变化，并因此测量环境参数的变化。
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6.发明授权公开(公告)号：US07434472B2
公开(公告)日：2008-10-14
申请号：US11709669
申请日：2007-02-22
IPC分类号： G01L13/02
CPC分类号： G01L9/0079 , G01L13/025
摘要： The present invention pertains to differential pressure transducers. In an embodiment of the invention, a differential pressure transducer includes a transducer housing, a diaphragm, a bellows, and a sensing assembly. The transducer housing, diaphragm, and bellows are coupled to form a pressure chamber. The pressure chamber is separated into two portions by the diaphragm, with each portion arranged to be filled with a process fluid. A pressure differential across the diaphragm causes displacement of the diaphragm. Such displacement is measured by the sensing assembly and used to calculate the pressure differential between the two process fluids.
摘要翻译： 本发明涉及差压传感器。 在本发明的一个实施例中，差压换能器包括换能器壳体，隔膜，波纹管和感测组件。 传感器外壳，隔膜和波纹管联接以形成压力室。 压力室通过隔膜分成两部分，每个部分布置成填充有工艺流体。 隔膜上的压差导致隔膜的位移。 这种位移由感测组件测量并用于计算两种工艺流体之间的压力差。
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公开(公告)号：US07191660B2
公开(公告)日：2007-03-20
申请号：US11105877
申请日：2005-04-14
IPC分类号： G01L7/08
CPC分类号： G01L19/0663 , G01L19/0681
摘要： Pressure transducers are used to measure pressure under high temperature, hostile environments, including in gas turbine combustors and internal combustion engines. The present a pressure transducer comprises a member having a first end and a second end, a diaphragm sealed within the member at the first end, a sensor sealed within the member at the first end and in operable communication with the diaphragm, a first plate having a plurality of apertures, the first plate being attached to the member at the second end, a second plate having a plurality of apertures, the second plate being attached to the tubular member at the second end and being spaced from the first plate, and wherein the apertures of the first plate are not aligned with the apertures of the second plate.
摘要翻译： 压力传感器用于测量高温恶劣环境下的压力，包括在燃气轮机燃烧器和内燃机中。 本发明的压力传感器包括具有第一端和第二端的构件，在第一端处密封在构件内的隔膜，在第一端处密封在构件内并且与隔膜可操作地连通的传感器，具有 多个孔，所述第一板在所述第二端处附接到所述构件，具有多个孔的第二板，所述第二板在所述第二端处附接到所述管状构件并且与所述第一板间隔开，并且其中 第一板的孔不与第二板的孔对齐。
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公开(公告)号：US07835598B2
公开(公告)日：2010-11-16
申请号：US11314729
申请日：2005-12-21
CPC分类号： G01D5/266 , G01D5/35383
摘要： A method and apparatus for monitoring one or more environmental parameters using interferometric sensor(s), a cross-correlator, a two-dimensional photosensitive array and optical focusing means are described. The method and apparatus allows for near simultaneous monitoring of the parameter(s) of interest.
摘要翻译： 描述了使用干涉测量传感器监测一个或多个环境参数的方法和装置，交叉相关器，二维光敏阵列和光学聚焦装置。 该方法和装置允许近似同时监测感兴趣的参数。
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9.发明申请Apparatus and methods for monitoring combustion dynamics in a gas turbine engine 有权用于监测燃气涡轮发动机中的燃烧动力学的装置和方法公开(公告)号：US20080226443A1
公开(公告)日：2008-09-18
申请号：US12075278
申请日：2008-03-10
CPC分类号： G01L9/0079
摘要： Apparatus, methods, and other embodiments associated with monitoring combustion dynamics in a gas turbine engine environment are described herein. In one embodiment of a system for monitoring combustion dynamics in a gas turbine engine environment, the system includes a transducer and an optical fiber. The transducer is positioned within the gas turbine engine environment, and the transducer includes a diaphragm, a window, and a Fabry-Perot gap. The diaphragm has a reflective surface, and the window has a partially reflective surface. The Fabry-Perot gap is formed between the reflective surface of the diaphragm and the partially reflective surface of the window. The optical fiber is positioned proximate to the window and directs light into the Fabry-Perot gap and receiving light reflected from the Fabry-Perot gap.
摘要翻译： 本文描述了与燃气涡轮发动机环境中的燃烧动态监测相关联的装置，方法和其它实施例。 在用于监测燃气涡轮发动机环境中的燃烧动力学的系统的一个实施例中，该系统包括换能器和光纤。 传感器位于燃气涡轮发动机环境内，并且换能器包括隔膜，窗口和法布里 - 珀罗（Fabry-Perot）间隙。 隔膜具有反射表面，并且窗口具有部分反射表面。 法布里 - 珀罗间隙形成在隔膜的反射表面和窗的部分反射表面之间。 光纤靠近窗口定位，并将光引导到法布里 - 珀罗（Fabry-Perot）间隙并接收从法布里 - 珀罗（Fabry-Perot）间隙反射的光。
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10.发明授权Method and apparatus for continuous readout of fabry-perot fiber optic sensor 有权用于连续读取fabry-perot光纤传感器的方法和装置公开(公告)号：US07940400B2
公开(公告)日：2011-05-10
申请号：US12371817
申请日：2009-02-16
IPC分类号： G01B9/02
CPC分类号： G01B9/02023 , G01B9/02004 , G01B2290/25 , G01D5/268 , G01D5/35303 , G01L9/0079
摘要： A pressure measurement system and method are described. The system uses a tunable laser and a Fabry-Perot sensor with integrated transducer. A detector senses the light modulated by the Fabry-Perot sensor. A signal conditioner, which can be located up to 15 km away, then uses the detector signal to determine the displacement of the diaphragm, which is indicative of pressure exerted against the diaphragm. Use of a temperature sensor to generate a signal, fed to the signal conditioner, to compensate for temperature is also contemplated.
摘要翻译： 描述了压力测量系统和方法。 该系统使用可调谐激光器和带有集成传感器的法布里 - 珀罗传感器。 检测器感测法布里 - 珀罗传感器调制的光。 可以位于距离15公里的信号调节器，然后使用检测器信号来确定隔膜的位移，其指示施加在隔膜上的压力。 还考虑使用温度传感器来产生馈送到信号调节器以补偿温度的信号。
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