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1. 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。

2. 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。

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

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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