公开(公告)号：US20100135608A1

公开(公告)日：2010-06-03

申请号：US12699178

申请日：2010-02-03

Applicant: Yuehua Chen

Inventor： Yuehua Chen

IPC: G02B6/00

CPC classification number: G01L19/0092 ,  G01D5/35303 ,  G01K11/3206 ,  G01L9/0039 ,  G01L11/025 ,  G02B6/0218 ,  G02B6/022 ,  G02B6/276 ,  G02B6/29317

Abstract: A sensing system including a sensor having an enclosure that defines a chamber, a fiber optic segment extending from outside the enclosure into the chamber, and a sequence of optical processing elements within the chamber. The elements include a fiber Bragg grating, a polarizer, a side hole fiber, and a mirror. A light source is arranged to direct light to the sensor(s). A spectral analyzer is arranged to detect light reflected back from the sensor(s). The fiber Bragg grating substantially reflects a first spectral envelope while transmitting the remainder of the optical spectrum to the polarizer and side hole fiber. The polarizer, side hole fiber, and mirror cooperate to return an optical signal within a second spectral envelope. The characteristic wavelength of a peak in the first spectral envelope is highly sensitive to temperature and relatively weakly sensitive to pressure. The period of the optical signal within the second spectral envelope is highly sensitive to pressure and relatively weakly sensitive to temperature. The spectral analyzer measures these spectral components to simultaneously derive a measure of temperature and pressure that effectively compensates for temperature-pressure cross-sensitivity of the sensor(s).

Abstract translation: 一种感测系统，包括具有限定腔室的外壳的传感器，从外壳外部延伸到腔室中的光纤段以及腔室内的一系列光学处理元件。 这些元件包括光纤布拉格光栅，偏振器，侧孔光纤和反射镜。 光源被布置成将光引导到传感器。 光谱分析仪布置成检测从传感器反射回来的光。 光纤布拉格光栅基本上反射第一光谱包围，同时将光谱的其余部分传输到偏振器和侧孔光纤。 偏振器，侧孔光纤和镜子协作以在第二光谱包络内返回光信号。 第一光谱包络中的峰的特征波长对温度高度敏感，对压力相对较弱。 第二个光谱包络内的光信号的周期对压力高度敏感，对温度相对较弱。 光谱分析仪测量这些光谱分量，以同时导出有效补偿传感器的温度 - 压力交叉敏感性的温度和压力测量。

公开(公告)号：US07412117B2

公开(公告)日：2008-08-12

申请号：US10580642

申请日：2004-10-18

Applicant: Yuehua Chen ,  Arthur H. Hartog

Inventor： Yuehua Chen ,  Arthur H. Hartog

IPC: G02B6/00 ,  G01K11/32

CPC classification number: G01K11/32

Abstract: A sensing fibre for use in a distributed temperature sensing system comprises an optical fibre to be deployed in a measurement region in which a temperature measurement is to be made, which incorporates a reflective element, such as a join between portions of fibre, and a coiled fibre portion positioned adjacent a distal side of the reflective element, the coiled fibre portion contributing substantially nothing to the spatial extent of the optical fibre when deployed. In use, the effect of any forward propagating light incident on the reflective element that is returned for detection by the system, and which saturates the detector, can be eliminated by removing the part of the detected signal that corresponds to the coiled portion, after which the detector will have recovered. The remaining parts of the signal can be used to derive the distributed temperature profile since these parts represent the whole extent of the sensing fibre owing to the lack of spatial extent of the coil. Coils can be provided on both sides of the reflective element for double-ended temperature sensing techniques.

Abstract translation: 用于分布式温度感测系统的感测光纤包括一个光纤，其部署在其中将要进行温度测量的测量区域中，该测量区域包含反射元件，诸如光纤部分之间的连接和卷绕的 纤维部分邻近反射元件的远端定位，当展开时，线圈纤维部分基本上对光纤的空间范围无贡献。 在使用中，通过去除与线圈部分相对应的检测信号的一部分，可以消除入射到反射元件上的任何正向传播光对系统进行检测并使其检测器饱和的影响，之后， 检测器将恢复。 信号的其余部分可以用于导出分布式温度曲线，因为这些部分由于缺乏线圈的空间范围而代表感测光纤的整个范围。 可以在反射元件的两侧设置线圈，用于双端温度感测技术。

公开(公告)号：US20130070235A1

公开(公告)日：2013-03-21

申请号：US13237082

申请日：2011-09-20

Applicant: Yuehua Chen ,  Colin Wilson

Inventor： Yuehua Chen ,  Colin Wilson

IPC: G01N21/17 ,  G01N21/00

CPC classification number: G01V8/24 ,  E21B47/06 ,  E21B47/065 ,  G01D5/35303 ,  G01D5/35312 ,  G01D5/35387 ,  G01K11/3206 ,  G01L1/246 ,  G01L11/025

Abstract: A multiple sensor fiber optic sensing system includes an optical fiber having at least first fiber optic sensors and second fiber optic sensors deployed along its length. In response to an interrogating pulse, the first fiber optic sensors generate responses in a first optical spectrum window, and the second fiber optic sensors generate responses in a second, different optical spectrum window. The responses in the first optical spectrum window are measured in a first optical spectrum channel, and the responses in the second optical spectrum window are measure in a second, different optical spectrum channel and provide simultaneous indications of one or more parameters, such as temperature and pressure, in the environment in which the sensors are deployed.

Abstract translation: 多传感器光纤感测系统包括具有至少第一光纤传感器和沿其长度部署的第二光纤传感器的光纤。 响应于询问脉冲，第一光纤传感器在第一光谱窗口中产生响应，并且第二光纤传感器在第二不同的光谱窗口中产生响应。 第一光谱窗口中的响应在第一光谱通道中测量，并且第二光谱窗口中的响应在第二个不同的光谱通道中测量，并提供一个或多个参数的同时指示，例如温度和 在传感器部署的环境中。

公开(公告)号：US08218916B2

公开(公告)日：2012-07-10

申请号：US12699178

申请日：2010-02-03

Applicant: Yuehua Chen

Inventor： Yuehua Chen

IPC: G02B6/00 ,  G02B6/26

CPC classification number: G01L19/0092 ,  G01D5/35303 ,  G01K11/3206 ,  G01L9/0039 ,  G01L11/025 ,  G02B6/0218 ,  G02B6/022 ,  G02B6/276 ,  G02B6/29317

Abstract: A sensing system including a sensor having an enclosure that defines a chamber, a fiber optic segment extending from outside the enclosure into the chamber, and a sequence of optical processing elements within the chamber. The elements include a fiber Bragg grating, a polarizer, a side hole fiber, and a mirror. A light source is arranged to direct light to the sensor(s). A spectral analyzer is arranged to detect light reflected back from the sensor(s). The fiber Bragg grating substantially reflects a first spectral envelope while transmitting the remainder of the optical spectrum to the polarizer and side hole fiber. The polarizer, side hole fiber, and mirror cooperate to return an optical signal within a second spectral envelope. The characteristic wavelength of a peak in the first spectral envelope is highly sensitive to temperature and relatively weakly sensitive to pressure. The period of the optical signal within the second spectral envelope is highly sensitive to pressure and relatively weakly sensitive to temperature. The spectral analyzer measures these spectral components to simultaneously derive a measure of temperature and pressure that effectively compensates for temperature-pressure cross-sensitivity of the sensor(s).

Abstract translation: 一种感测系统，包括具有限定腔室的外壳的传感器，从外壳外部延伸到腔室中的光纤段以及腔室内的一系列光学处理元件。 这些元件包括光纤布拉格光栅，偏振器，侧孔光纤和反射镜。 光源被布置成将光引导到传感器。 光谱分析仪布置成检测从传感器反射回来的光。 光纤布拉格光栅基本上反射第一光谱包围，同时将光谱的其余部分传输到偏振器和侧孔光纤。 偏振器，侧孔光纤和镜子协作以在第二光谱包络内返回光信号。 第一光谱包络中的峰的特征波长对温度高度敏感，对压力相对较弱。 第二个光谱包络内的光信号的周期对压力高度敏感，对温度相对较弱。 光谱分析仪测量这些光谱分量，以同时导出有效补偿传感器的温度 - 压力交叉敏感性的温度和压力测量。

公开(公告)号：US07494289B1

公开(公告)日：2009-02-24

申请号：US11869848

申请日：2007-10-10

Applicant: Yuehua Chen

Inventor： Yuehua Chen

IPC: G02B6/255

CPC classification number: G02B6/2558

Abstract: An optical fiber splice protector is provided which includes a first tube being substantially hollow and being locatable along a portion of the length of at least one optical fiber, the portion including a bare optical fiber section of the optical fiber. A longitudinal support is also locatable along the portion of the length of the optical fiber that includes the bare optical fiber splice section of the optical fiber, the longitudinal support being enclosable by the first tube along the length of the optical fiber. The first tube is of high temperature resistant material that is resistant to temperatures above 125 degrees Celsius.

Abstract translation: 提供了一种光纤接头保护器，其包括基本上中空的第一管，并且可沿着至少一个光纤长度的一部分定位，该部分包括光纤的裸光纤部分。 纵向支撑件也可以沿着包括光纤的裸光纤接合部分的光纤长度的部分定位，纵向支撑件沿着光纤长度被第一管子封闭。 第一根管是耐温度高于125摄氏度的耐高温材料。

公开(公告)号：US20080212917A1

公开(公告)日：2008-09-04

申请号：US11916718

申请日：2006-06-20

Applicant: Yuehua Chen

Inventor： Yuehua Chen

IPC: G02B6/00

CPC classification number: G01L19/0092 ,  G01D5/35303 ,  G01K11/3206 ,  G01L9/0039 ,  G01L11/025 ,  G02B6/0218 ,  G02B6/022 ,  G02B6/276 ,  G02B6/29317

Abstract: A sensing system including a sensor having an enclosure that defines a chamber, a fiber optic segment extending from outside the enclosure into the chamber, and a sequence of optical processing elements within the chamber. The elements include a fiber Bragg grating, a polarizer, a side hole fiber, and a mirror. A light source is arranged to direct light to the sensor(s). A spectral analyzer is arranged to detect light reflected back from the sensor(s). The fiber Bragg grating substantially reflects a first spectral envelope while transmitting the remainder of the optical spectrum to the polarizer and side hole fiber. The polarizer, side hole fiber, and mirror cooperate to return an optical signal within a second spectra! envelope. The characteristic wavelength of a peak in the first spectral envelope is highly sensitive to temperature and relatively weakly sensitive to pressure. The period of the optical signal within the second spectral envelope is highly sensitive to pressure and relatively weakly sensitive to temperature. The spectral analyzer measures these spectral components to simultaneously derive a measure of temperature and pressure that effectively compensates for temperature-pressure cross-sensitivity of the sensor(s).

Abstract translation: 一种感测系统，包括具有限定腔室的外壳的传感器，从外壳外部延伸到腔室中的光纤段以及腔室内的一系列光学处理元件。 这些元件包括光纤布拉格光栅，偏振器，侧孔光纤和反射镜。 光源被布置成将光引导到传感器。 光谱分析仪布置成检测从传感器反射回来的光。 光纤布拉格光栅基本上反射第一光谱包围，同时将光谱的其余部分传输到偏振器和侧孔光纤。 偏振器，侧孔光纤和镜子协调在第二个光谱内返回光信号！ 信封。 第一光谱包络中的峰的特征波长对温度高度敏感，对压力相对较弱。 第二个光谱包络内的光信号的周期对压力高度敏感，对温度相对较弱。 光谱分析仪测量这些光谱分量，以同时导出有效补偿传感器的温度 - 压力交叉敏感性的温度和压力测量。

公开(公告)号：US07298802B2

公开(公告)日：2007-11-20

申请号：US10367838

申请日：2003-02-19

Applicant: Feng Ren ,  Zhibin Zheng ,  Yuehua Chen

Inventor： Feng Ren ,  Zhibin Zheng ,  Yuehua Chen

IPC: H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04

CPC classification number: H04B1/7103 ,  H04B1/7115 ,  H04B17/336

Abstract: The invention discloses a signal-to-interference ratio (SIR) measurement method. The method measures interference power (I) of a single-path signal after the received signal is demodulated by the single-path demodulators of multipath receiving device at the receiving end. The total interference power is obtained by equipartition combining with the measured interference power of each single-path signal. The signal power (S) is obtained by measuring after maximum ratio combination of each single-path signal. The SIR of the received signal is the division of the signal power and the total interference power. An apparatus, implementing mentioned method, sets the interference power measurement-device in the RAKE combiner and the signal power measurement-device after the RAKE combiner. In this way, the interference measurement can effectively provide more information and can more really response to the channel variation.

Abstract translation: 本发明公开了一种信号干扰比（SIR）测量方法。 该方法在接收端通过多路径接收装置的单路解调器对接收到的信号进行解调后，测量单路信号的干扰功率（I）。 总干扰功率是通过与每个单路信号的测量干扰功率组合来获得的。 信号功率（S）通过在每个单路信号的最大比组合之后进行测量来获得。 接收信号的SIR是信号功率和总干扰功率的分割。 实现上述方法的装置在RAKE组合器之后将RAKE组合器中的干扰功率测量装置和信号功率测量装置设置。 以这种方式，干扰测量可以有效地提供更多的信息，并且可以更真实地响应信道变化。

公开(公告)号：US07292345B2

公开(公告)日：2007-11-06

申请号：US10514919

申请日：2003-05-13

Applicant: Maxwell R. Hadley ,  Arthur H. Hartog ,  Yuehua Chen

Inventor： Maxwell R. Hadley ,  Arthur H. Hartog ,  Yuehua Chen

IPC: G01B9/02

CPC classification number: G01D5/35303 ,  G01B9/02065

Abstract: A method and apparatus for receiving measurements from an interferometer transducer (22) uses a broad band light beam (19A), reflected from the transducer (22), and compares it with the amplitudes of narrow band beams, derived from the reflected broad band light beam (19A), by filters (23A-23D) on different frequencies. The narrow band light beams and the broad band light beam (19A) are measured on photo detectors (22A, 21B-21E). Microprocessor (57) compares outputs of the photo detectors to interpret phase differences between signals (25, 27, 29) from the narrow band beams. A periodically operable shutter and a single photo detector (21) can also be used. Other embodiments modulate (12) the light source (10) to produce very short broad band pulses of light (36, 40) which are reflected from the transducer (22).

Abstract translation: 用于从干涉仪换能器（22）接收测量的方法和装置使用从换能器（22）反射的宽带光束（19A），并将其与从反射的宽带导出的窄带束的幅度进行比较 光束（19A），通过滤波器（23A-23D）在不同的频率上。 在光电检测器（22A，21B-21E）上测量窄带光束和宽带光束（19A）。 微处理器（57）比较光电检测器的输出，以解释来自窄带光束的信号（25,27,29）之间的相位差。 也可以使用周期性操作的快门和单个光电检测器（21）。 其他实施例调制（12）光源（10）以产生从换能器（22）反射的非常短的宽带脉冲（36,40）。

公开(公告)号：US20070253367A1

公开(公告)日：2007-11-01

申请号：US11742667

申请日：2007-05-01

Applicant: Shujun Dang ,  Yuehua Chen ,  Jianjun Wu

Inventor： Shujun Dang ,  Yuehua Chen ,  Jianjun Wu

IPC: H04Q7/00 ,  H04L12/56

CPC classification number: H04W72/005

Abstract: The present invention discloses a method, a system and apparatus of realizing indicating resource of MBS. The method comprises: a Down Link-MAP (DL-MAP) message sent by a Base Station (BS) carries resource information associated Multicast and Broadcast Service (MBS); receiving the DL-MAP message sent by BS, Mobile station (MS) judges whether the service information associated with MBS comprised in this message is identical to that reserved by the MS itself, if yes, the MS determines the physical channel resource occupied by MBS according to the resource information which is associated with MBS and carried in this message. The present invention also discloses another method of realizing indicating resource of MBS. The present invention solves the problem that the prior art cannot directly perform resource indication upon multicast service. Through the scheme of the present invention, position of the physical channel resource occupied by the MBS-MAP message corresponding to multicast service can be determined, and various specific positioning measures are provided thereof.

Abstract translation: 本发明公开了一种实现MBS资源指示的方法，系统和装置。 该方法包括：由基站（BS）发送的下行链路MAP（DL-MAP）消息携带相关的多播和广播服务（MBS）的资源信息; 接收BS发送的DL-MAP消息，移动台（MS）判断与该消息中包含的MBS相关的业务信息是否与MS本身保留的业务信息相同，如果是，MS确定MBS所占用的物​​理信道资源 根据与MBS相关联并在该消息中携带的资源信息。 本发明还公开了实现MBS资源的另一种方法。 本发明解决了现有技术不能在多播服务上直接执行资源指示的问题。 通过本发明的方案，可以确定与多播服务对应的MBS-MAP消息占用的物理信道资源的位置，并提供各种具体的定位措施。

公开(公告)号：US07251038B2

公开(公告)日：2007-07-31

申请号：US10514864

申请日：2003-05-13

Applicant: James Mcinnes ,  Maxwell R. Hadley ,  Arthur H. Hartog ,  Yuehua Chen ,  Timothy Jeffreys

Inventor： James Mcinnes ,  Maxwell R. Hadley ,  Arthur H. Hartog ,  Yuehua Chen ,  Timothy Jeffreys

IPC: G01B9/02

CPC classification number: G01D5/35306

Abstract: An apparatus for sensing data from a remote optical sensor 16 has its frequency stabilised by balancing the outputs of narrow band filter 28 30, spaced about a desired frequency 36 positioned at about the 3 db down points 40 of a broad band light source 10 using voltage control, current control or temperature control to vary the frequency of the wide band light source 10. Difference between the outputs through the two narrow band filters 28 30 can be used to drive an amplifier 48 to correct the frequency of the broad band light source. The outputs through the two narrow band filters 28 30 can be converted 52 to binary numbers and fed to a microprocessor 56 which is used, via analog conversion 60, to drive the amplifier 48. The broad band light source 10 can be pulse modulated 68 to provide temporally separate light pulses 92 94 through each of the narrow band filters 28 30, measured at separate times. The corrective output to the amplifier 48 can be governed by a ratio between the outputs through the narrow band filters 28 30 rather than by a difference there between.

Abstract translation: 用于感测来自远程光学传感器16的数据的装置的频率通过平衡窄带滤波器28 30的输出而被稳定，窄带滤波器28 30的输出使用位于宽带光源10的大约3db下降点40的期望频率36 控制，电流控制或温度控制来改变宽带光源10的频率。 通过两个窄带滤波器28 30的输出之间的差可以用于驱动放大器48来校正宽带光源的频率。 通过两个窄带滤波器28 30的输出可以被转换成二进制数，并被馈送到微处理器56，微处理器56经由模拟转换60被使用以驱动放大器48。 宽带光源10可以被脉冲调制68，以通过在分开的时间测量的每个窄带滤光器28 30提供时间上分离的光脉冲92 94。 放大器48的校正输出可以由通过窄带滤波器28 30的输出之间的比率来控制，而不是由它们之间的差异来控制。