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1. 发明授权

US06314056B1 Fiber optic sensor system and method 失效
标题翻译：光纤传感器系统及方法
公开(公告)号：US06314056B1
公开(公告)日：2001-11-06
申请号：US09012368
申请日：1998-01-23
申请人： J. Brett Bunn , James S. Bunn , Mikko Jaaskelainen , Steven J. Maas
发明人： J. Brett Bunn , James S. Bunn , Mikko Jaaskelainen , Steven J. Maas
IPC分类号： H04R2300
CPC分类号： G01M11/085 , G01D5/35329 , G01H9/004 , G02F1/0134 , G02F2001/212 , G02F2001/213 , G02F2201/307
摘要： A system and method are provided for converting an electrical signal to an optical signal for a fiber optic system. The electrical signal produced by a sensor (10) based upon a parameter being measured is connected across a material (12, 34, 40) that changes dimension responsive to an applied electrical signal. An optical fiber (14, 30, 38) is coupled to the material (12, 34, 40) where dimension changes of the material (12, 34, 40) produce strain in the optical fiber (14, 30, 38). This strain is operable to affect light traveling through the optical fiber (14, 30, 38) to produce an optical signal for a fiber optic system. In one embodiment, the sensor (10) can be a geophone sensor that produces an electrical signal proportional to motion of the geophone sensor. In another embodiment, the sensor (10) can be a hydrophone sensor that produces an electrical signal proportional to acoustic pressure incident on the hydrophone sensor. Also, the material (12, 34, 40) that changes dimension responsive to an applied electrical signal can be, for example, a piezoelectric ceramic cylinder or a PVDF film or other piezo-polymer material.
摘要翻译：提供了一种用于将电信号转换成光纤系统的光信号的系统和方法。基于所测量的参数由传感器（10）产生的电信号跨越响应于所施加的电信号改变尺寸的材料（12,34,40）。光纤（14,30,38）耦合到材料（12,34,40），其中材料（12,34,40）的尺寸变化在光纤（14,30,38）中产生应变。该应变可操作以影响穿过光纤（14,30,38）的光，以产生用于光纤系统的光信号。在一个实施例中，传感器（10）可以是地震检波器传感器，其产生与地震检波器传感器的运动成比例的电信号。在另一个实施例中，传感器（10）可以是产生与入射在水听器传感器上的声压成比例的电信号的水听器传感器。此外，根据所施加的电信号改变尺寸的材料（12,34,40）可以是例如压电陶瓷圆筒或PVDF薄膜或其它压电聚合物材料。

2. 发明授权

US5917597A Noise suppression apparatus and method for time division multiplexed fiber optic sensor arrays 失效
标题翻译：用于时分复用光纤传感器阵列的噪声抑制装置和方法
公开(公告)号：US5917597A
公开(公告)日：1999-06-29
申请号：US18774
申请日：1998-02-04
申请人： David B. Hall , James S. Bunn, Jr.
发明人： David B. Hall , James S. Bunn, Jr.
IPC分类号： G01B9/02 , G01D5/353 , G01J9/02
CPC分类号： G01D5/35303 , G01D5/35383
摘要： Leakage optical signals injected into a time division multiplexed sensor system are modulated during off periods in the duty cycle in the sensor interrogation signal. The leakage light is modulated such that its unwanted contributions to the sensor output signals are displaced in frequency from the base band frequency. This frequency displacement greatly reduces unwanted noise power in the received signals.
摘要翻译：注入到时分复用传感器系统中的泄漏光信号在传感器询问信号的占空比的关闭期间进行调制。调制泄漏光，使得其对传感器输出信号的不期望的贡献在频带上从基带频率位移。该频率位移大大减少了接收信号中的不必要的噪声功率。

3. 发明授权

US4737080A Valve assembly 失效
标题翻译：阀组件
公开(公告)号：US4737080A
公开(公告)日：1988-04-12
申请号：US931608
申请日：1986-11-17
申请人： Herbert B. Owsley , Lauren D. Sperry , James S. Bunn
发明人： Herbert B. Owsley , Lauren D. Sperry , James S. Bunn
IPC分类号： F04B49/02 , F04B49/24 , F04B49/00
CPC分类号： F04B49/02 , F04B49/243
摘要： A valve assembly is provided which includes a seat structure and a cage structure. A valve member is movable between open and closed positions and includes an upstream side adapted to engage the seat structure with the valve member in its closed position and a downstream side connected to the cage struture. The cage structure includes a manifold communicating with the valve member downstream side. A pilot valve is provided for selectively venting the manifold to an area of low fluid pressure whereby the valve member is held in its open position.
摘要翻译：提供一种阀组件，其包括座椅结构和笼结构。阀构件可在打开位置和关闭位置之间移动，并且包括适于将座椅结构与阀构件接合在其关闭位置的上游侧，以及连接到保持架结构的下游侧。笼结构包括与阀构件下游侧连通的歧管。提供了一个先导阀，用于选择性地将歧管排放到低流体压力的区域，从而阀构件保持在其打开位置。

4. 发明授权

US5283625A Interferometer phase modulation controller apparatus using ratios of two pairs of harmonic signals 失效
标题翻译：干涉仪相位调制控制器装置使用两对谐波信号的比例
公开(公告)号：US5283625A
公开(公告)日：1994-02-01
申请号：US751358
申请日：1991-08-19
申请人： James S. Bunn, Jr.
发明人： James S. Bunn, Jr.
IPC分类号： G01D5/26 , G01B9/02
CPC分类号： G01D5/266
摘要： A phase modulation control apparatus is taught in combination with an interferometer excited by a coherent light source providing a light beam to the interferometer having first and second optical paths. The interferometer senses a physical quantity such as pressure. The interferometer is coupled to provide an optical signal containing information providing a measure of the physical quantity via first and second interfering beams to a detector. The detector provides a composite output signal. The invention phase modulation control apparatus has a modulation means responsive to a modulating frequency signal and a phase modulation control signal to provide a frequency modulating factor signal for frequency modulating at least a portion of the light beam to provide a phase modulation between the first and second interfering beams at a carrier frequency. The composite output signal has at least four harmonic signals referenced to the carrier frequency. A synchronous detection means responsive to the carrier frequency signal and to the composite output signal provides a pair of even harmonic filtered signals and a pair of odd harmonic filtered signals. A reference channel means and quadrature channel means each respond to the even and odd harmonic pairs of filtered signals and respectively provide first and second integrator input error signals which have null values in response to their respective harmonic pairs having a predetermined ratio. An integration means combines and integrates the first and second integrator input error signals to provide the phase modulation control signal to the modulation means.
摘要翻译：相位调制控制装置与由相干光源激励的干涉仪组合教导，该相干光源向具有第一和第二光路的干涉仪提供光束。干涉仪检测物理量如压力。干涉仪被耦合以提供含有信息的光学信号，该信息通过第一和第二干涉光束向检测器提供物理量的测量。检测器提供复合输出信号。本发明的相位调制控制装置具有响应于调制频率信号和相位调制控制信号的调制装置，以提供频率调制因子信号，用于对至少一部分光束进行频率调制，以在第一和第二在载波频率处的干扰波束。复合输出信号具有至少四个参考载波频率的谐波信号。响应于载波频率信号和复合输出信号的同步检测装置提供一对偶次谐波滤波信号和一对奇次谐波滤波信号。参考通道装置和正交通道装置各自响应于滤波信号的偶次和奇数谐波对，并分别提供第一和第二积分器输入误差信号，其响应于具有预定比率的各自的谐波对而具有空值。积分装置组合并积分第一和第二积分器输入误差信号，以向调制装置提供相位调制控制信号。

5. 发明授权

US5039221A Interferometer calibration for fiber optic sensor arrays 失效
标题翻译：光纤传感器阵列的干涉仪校准
公开(公告)号：US5039221A
公开(公告)日：1991-08-13
申请号：US375323
申请日：1989-07-03
申请人： Michael R. Layton , James S. Bunn, Jr.
发明人： Michael R. Layton , James S. Bunn, Jr.
IPC分类号： G01D5/353
CPC分类号： G01D5/35383
摘要： A switch-selectable calibration signal is applied to an interferometric sensor channel of fiber optic sensor array for monitoring its operation. A calibration signal is applied at a single physical location to determine the channel scale factors and proper operability of multiple sensors at remote locations in the array. An optical signal input to each interferometric sensor channel in the array, and a compensating interferometer receives optical signals output from the fiber optic sensor array. A signal is applied to the compensating interferometer to form an output signal that simulates signals output from each interferometric sensor in the array. These signals are processed to determine the scale factor of each interferometer in the fiber optic sensor array.
摘要翻译：开关可选择的校准信号被应用于光纤传感器阵列的干涉传感器通道，用于监视其操作。在单个物理位置应用校准信号以确定阵列中远程位置处的多个传感器的通道比例因子和适当的可操作性。输入到阵列中的每个干涉传感器通道的光信号，以及补偿干涉仪接收从光纤传感器阵列输出的光信号。信号被施加到补偿干涉仪以形成输出信号，该信号模拟阵列中每个干涉测量传感器输出的信号。处理这些信号以确定光纤传感器阵列中每个干涉仪的比例因子。

6. 发明授权

US5995207A Method for determining the phase difference of light waves propagated over two paths 失效
标题翻译：用于确定在两条路径上传播的光波的相位差的方法
公开(公告)号：US5995207A
公开(公告)日：1999-11-30
申请号：US979162
申请日：1997-11-26
申请人： David B. Hall , Donald A. Frederick , James B. Bunn , James S. Bunn, Jr.
发明人： David B. Hall , Donald A. Frederick , James B. Bunn , James S. Bunn, Jr.
IPC分类号： G01J9/00 , G01C3/08 , G01B9/02
CPC分类号： G01J9/00
摘要： The invention is a method for obtaining a measure of the light propagation time difference for two light-propagating-media paths. The first step consists of generating two substantially-identical frequency-modulated light waves whereby the frequency of the light waves is offset from a reference frequency by a different frequency increment for each basic time interval in each of a plurality of groups of three or more basic time intervals. Each frequency increment is the sum of a specified increment and a frequency-modulation-error increment. The frequency-modulation-error increments associated with the specified increments are independent of each other and unknown. The second step consists of feeding the two light waves into the entry points of two light-propagating-media paths having a light propagation time difference and obtaining a combination light wave by summing the light waves emerging from the exit points of the two light-propagating-media paths. The third step consists of calculating an estimated corrected or estimated uncorrected phase measure of the light propagation time difference for the two paths for a plurality of groups using only measured properties of the combination light wave.
摘要翻译：本发明是一种用于获得两个光传播介质路径的光传播时间差测量的方法。第一步包括产生两个基本上相同的频率调制光波，由此在三个或更多个基本的多个组中的每组中，每个基本时间间隔，光波的频率偏离参考频率不同的频率增量时间间隔。每个频率增量是指定增量和频率调制误差增量之和。与指定增量相关联的频率调制误差增量彼此独立，未知。第二步包括将两个光波馈送到具有光传播时间差的两个光传播介质路径的入口点，并通过将从两个光传播的出射点出射的光波相加获得组合光波媒体路径。第三步包括仅使用组合光波的测量属性来计算多个组的两个路径的光传播时间差的估计校正或估计的未校正相位测量。

7. 发明授权

US5355216A Optical fiber sensor having digital integrating detection system utilizing electronic phase lock loop 失效
标题翻译：具有利用电子锁相环的数字积分检测系统的光纤传感器
公开(公告)号：US5355216A
公开(公告)日：1994-10-11
申请号：US931111
申请日：1992-08-17
申请人： Byoung Y. Kim , Kenneth A. Fesler , James S. Bunn
发明人： Byoung Y. Kim , Kenneth A. Fesler , James S. Bunn
IPC分类号： G01C19/72 , G01C19/64
CPC分类号： G01C19/721
摘要： An interferometer used as a rotation sensor is constructed using a strand of optical fiber, a portion of which is formed into a sensing loop. A pair of light waves are caused to counterpropagate in the sensing loop and are combined to form an optical output signal that has an intensity that varies in accordance with the difference in the phases of the two counterpropagating light waves. A phase modulator is positioned on the optical fiber in the sensing loop at a location such that the two counterpropagating light waves are modulated approximately 180 degrees out of phase. The time-varying phase modulation causes a time-varying phase difference that is combined with a rotationally-induced Sagnac effect phase to provide a total phase difference that is detected by a photodetector. The photodetector provides an electrical output signal that is processed to determine the Sagnac phase difference. The rotation rate is then calculated from the Sagnac phase difference. The processing occurs in a feedback loop in which a reference signal is multiplied by the electrical output signal to provide a feedback signal. The reference signal is adjusted so that the feedback signal is maintained at a predetermined value. The magnitude of the adjustment of the reference signal is measured and the Sagnac phase difference is determined from the measured magnitude.
摘要翻译：用作旋转传感器的干涉仪使用一束光纤构成，其一部分形成感测环路。在感测回路中引起一对光波反向传播，并被组合以形成光输出信号，其具有根据两个反向传播光波的相位差而变化的强度。相位调制器位于感测回路中的光纤上，使得两个反向传播的光波相位调制为大约180度。时变相位调制引起与旋转诱导的Sagnac效应相组合的时变相位差，以提供由光电检测器检测的总相位差。光电检测器提供被处理以确定Sagnac相位差的电输出信号。然后从Sagnac相位差计算旋转速率。处理发生在反馈回路中，其中参考信号乘以电输出信号以提供反馈信号。调整参考信号，使得反馈信号保持在预定值。测量参考信号的调整幅度，并从测量的幅度确定Sagnac相位差。

8. 发明授权

US4819689A Head-guided poppet valve member and valve assembly 失效
标题翻译：头部导向提升阀构件和阀组件
公开(公告)号：US4819689A
公开(公告)日：1989-04-11
申请号：US151223
申请日：1988-02-01
申请人： Herbert B. Owsley , James S. Bunn
发明人： Herbert B. Owsley , James S. Bunn
IPC分类号： F04B39/10 , F04B53/10 , F16K15/02
CPC分类号： F16K15/026 , F04B39/102 , F04B53/1092 , Y10S137/902 , Y10T137/7839 , Y10T137/7939
摘要： A poppet valve assembly includes a cage with a cage fluid passage and a seat with a seat fluid passage. A poppet valve member includes a head and is movable between a closed position with the head engaging the seat and an open position with the head spaced from the seat. The valve member is stemless and is guided by a guide fin assembly including a plurality of guide fins slidably engaging the seat passage.
摘要翻译：提升阀组件包括具有保持架流体通道的保持架和具有座位流体通道的座。提升阀构件包括头部，并且在与头部接合座椅的关闭位置和打开位置之间可移动，头部与座椅间隔开。阀构件是无杆的并且由包括可滑动地接合座椅通道的多个引导翅片的引导翅片组件引导。

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