Optically controlled transducer
    2.
    发明授权
    Optically controlled transducer 失效
    光控传感器

    公开(公告)号:US5085125A

    公开(公告)日:1992-02-04

    申请号:US632210

    申请日:1990-12-21

    CPC分类号: F15B13/044 Y10T137/86622

    摘要: An optically controlled fluid powered actuator is disclosed and includes a primary fluid valve positioning transducer which responds to optical binary coded control words to position a fluid. The actuator has a pair of opposed stacks of piezoelectric elements with the relative length of the piezoelectric elements in each stack being in the same ratios as the relative weights of bits in the control words. There are two sets of optically actuated electrical switches each responsive to control words to energize corresponding ones of the piezoelectric elements in an associated stack of elements. A first class lever has one end coupled to a controlling portion of a fluid valve and the other end interposed between the stacks of piezoelectric elements so that the lever can translate motion of elements in a piezoelectric stack into fluid valve actuation. A fluid powered electrical generator provides the sole source of electrical energy for the piezoelectric elements. A pair of optical fibers convey the optical binary coded control words in the form of a wavelength division multiplexed optical signal to corresponding ones of the sets of switches.

    摘要翻译: 公开了一种光学控制的流体动力致动器,并且包括主要流体阀定位换能器,其响应于光学二进制编码控制字以定位流体。 致动器具有一对相对的压电元件堆叠,每个堆叠中的压电元件的相对长度与控制字中的位的相对权重相同。 存在两组光学致动的电开关,每组响应于控制字来激励相关联的元件堆叠中的对应的压电元件。 第一级杠杆的一端连接到流体阀的控制部分,另一端插入在压电元件堆之间,使得杠杆可以将压电叠层中的元件的运动转化成流体阀驱动。 流体动力发电机为压电元件提供唯一的电能源。 一对光纤以波分复用光信号的形式将光二进制编码控制字传送给开关组中的相应组。

    Optic switch and speed sensor
    3.
    发明授权
    Optic switch and speed sensor 失效
    光开关和速度传感器

    公开(公告)号:US4843232A

    公开(公告)日:1989-06-27

    申请号:US138258

    申请日:1987-12-28

    IPC分类号: G01P3/486 G01D5/353 G01P3/487

    CPC分类号: G01P3/486 G01P3/487

    摘要: An electro-optic speed sensor for sensing the speed of rotation of a rotating sending unit which includes an optical switch transducer for sensing disturbances in a magnetic field caused by the passage of a rotating magnetic sending wheel on the rotating member. The optical switch transducer uses a Faraday material and provides its signal by rotating the polarity of polarized light from a first source of light having a first bandwidth while allowing a second source of light having a second bandwidth to pass through unaffected. The first and second sources of light are thereafter, reflected within the transducer. The disturbances in the magnetic field generate an optical signal resulting from changes in the Faraday rotation. A photodetector receives the light from the first source to develop an operational signal corresponding to the speed of rotation of the rotating member and light from the second source to check on the continuity of the sensor system.

    摘要翻译: 一种用于感测旋转发送单元的旋转速度的电光速度传感器,其包括用于感测由旋转磁轮在旋转构件上通过引起的磁场中的扰动的光开关换能器。 光开关传感器使用法拉第材料并通过旋转具有第一带宽的第一光源的偏振光的极性提供其信号,同时允许具有第二带宽的第二光源通过未受影响。 此后,第一和第二光源反射在换能器内。 磁场中的干扰产生由法拉第旋转的变化引起的光信号。 光电检测器接收来自第一源的光,以产生对应于旋转构件的旋转速度和来自第二源的光的操作信号,以检查传感器系统的连续性。

    Fringe pattern analysis of a birefringent modified spectrum to determine
environmental temperature
    4.
    发明授权
    Fringe pattern analysis of a birefringent modified spectrum to determine environmental temperature 失效
    双折射修正光谱的边缘图案分析,以确定环境温度

    公开(公告)号:US5255068A

    公开(公告)日:1993-10-19

    申请号:US796743

    申请日:1991-11-25

    CPC分类号: G01K11/12

    摘要: A sensor for use in an optical temperature detector system having a birefringent element made of a single crystal metal oxide plate. A broad band light spectrum is transmitted through a first linear polarizing element to create a linearly polarized wave. The linearly polarized wave on passing through the single crystal metal oxide plate decomposes into first and second orthogonally polarized waves. Propagation of the linearly polarized wave through the birefringent single crystal metal oxide plate introduces a temperature dependent phase shift between the two waves. Thereafter, a second linear polarizer combines the first and second orthogonally polarized waves to create a modulated light spectrum having a fringe pattern, the fringe pattern being a function of the current temperature experienced by said birefringent element. A fiber optic cable connected to the second linear polarizing element carries the modulated light spectrum to an opto-electronic interface where the fringe pattern is extracted and a computer compatible signal is generated for a CPU to accurately indicate current environmental temperature conditions up to 1000.degree. C. experienced by the single crystal plate crystal in the birefringent element.

    摘要翻译: 一种用于具有由单晶金属氧化物板制成的双折射元件的光学温度检测器系统的传感器。 宽带光谱通过第一线性偏振元件透射以产生线偏振波。 通过单晶金属氧化物板的线偏振波分解成第一和第二正交极化波。 通过双折射单晶金属氧化物板的线偏振波的传播在两个波之间引入温度相关的相移。 此后,第二线性偏振器组合第一和第二正交极化波,以产生具有条纹图案的调制光谱,该条纹图案是由所述双折射元件所经历的当前温度的函数。 连接到第二线性偏振元件的光纤电缆将调制的光谱传送到光电接口,其中提取条纹图案,并且为CPU产生计算机兼容信号以准确地指示当前最高1000℃的环境温度条件 由双折射元件中的单晶板晶体经历。

    Optical spectral analyzer
    5.
    发明授权
    Optical spectral analyzer 失效
    光谱分析仪

    公开(公告)号:US4852079A

    公开(公告)日:1989-07-25

    申请号:US124535

    申请日:1987-11-23

    摘要: An optical spectral analyzer (10) for receiving an input beam (30) through a multi-mode optic fiber (28). The input or beam (30) has a predetermined spectral band width. The random individual spectral components of the beam (30) are dispersed by a grating (40) to generate a spectrum (42, 42' . . . 42.sup.N). A detector (52) senses the magnitude of the elements in a reflected focused spectrum (50, 50' . . . 50.sup.N) to recover the information placed on the optic fiber (28) at a remote location by a spectrum encoding device.

    摘要翻译: 一种用于通过多模光纤(28)接收输入光束(30)的光谱分析器(10)。 输入或光束(30)具有预定的光谱带宽。 光束(30)的随机个体光谱分量由光栅(40)分散以产生光谱(42,42'... 42N)。 检测器(52)感测反射聚焦光谱(50,50'... 50N)中的元素的大小,以通过光谱编码装置恢复在远程位置放置在光纤(28)上的信息。

    Spectral optic temperature sensor
    6.
    发明授权
    Spectral optic temperature sensor 失效
    光谱温度传感器

    公开(公告)号:US4778270A

    公开(公告)日:1988-10-18

    申请号:US004735

    申请日:1987-01-20

    CPC分类号: G01K11/18

    摘要: The invention is a temperature sensor which uses the variation in the critical angle between two optically transparent media, at least one of which has an index of refraction variable as a function of temperature, to variably refract and reflect portions of a spectrum incident on the junction of the media at angles less than and greater than the critical angle to produce an optical signal variable as a function of temperature.

    摘要翻译: 本发明是一种温度传感器,其使用两个光学透明介质之间的临界角的变化,其中至少一个光学透明介质具有可变的折射率作为温度的函数,以可变地折射和反射入射在接合点上的光谱的部分 的介质,其角度小于和大于临界角,以产生作为温度的函数的光信号变量。

    PHOTONIC PROXIMITY SENSOR AND SCALABLE PHOTONIC SENSING SYSTEM
    7.
    发明申请
    PHOTONIC PROXIMITY SENSOR AND SCALABLE PHOTONIC SENSING SYSTEM 失效
    光电接近传感器和可扩展的光电传感系统

    公开(公告)号:US20090266977A1

    公开(公告)日:2009-10-29

    申请号:US12109080

    申请日:2008-04-24

    IPC分类号: G01B15/00 G01B7/14

    CPC分类号: G01B11/026 G01B7/023 G01V8/20

    摘要: A photonic proximity sensor and photonic sensor system are provided. The photonic proximity sensor includes a first light source, a second light source, and a magneto-optic device. The magneto-optic device receives light emitted from the first and second light sources, and is responsive to variations of a magnetic field to rotate the light from one of the sources significantly more than the light from the other light source.

    摘要翻译: 提供光子接近传感器和光子传感器系统。 光子接近传感器包括第一光源,第二光源和磁光器件。 磁光设备接收从第一和第二光源发射的光,并且响应于磁场的变化,以使来自一个源的光明显地比来自另一个光源的光旋转更多。

    ENERGY-OPTIMIZED CYCLE CONTROL OF TIME-VARIANT LOADS FOR THERMAL MANAGEMENT OF VAPOR COMPRESSION SYSTEMS
    8.
    发明申请
    ENERGY-OPTIMIZED CYCLE CONTROL OF TIME-VARIANT LOADS FOR THERMAL MANAGEMENT OF VAPOR COMPRESSION SYSTEMS 审中-公开
    用于蒸汽压缩系统热管理的时变载荷的能量优化循环控制

    公开(公告)号:US20140196489A1

    公开(公告)日:2014-07-17

    申请号:US14153471

    申请日:2014-01-13

    IPC分类号: F25B49/02

    摘要: Control methods for vapor compression systems and multiple-load vapor compression systems having one or more refrigeration loops include selecting a desired set-point temperature range for a load temperature at one or more load locations. The vapor compression system is then operated to transfer heat from the one or more load locations to a rejection location. While the vapor compression system is operating, a control apparatus continually adjusts various parameters. A capacity of an adjustable-capacity compressor is adjusted to maintain with respect to an evaporator load a maximum low-side pressure of the refrigeration loop as measured by a first sensor. An adjustable rejection capacity of a rejection apparatus is adjusted to maintain a minimum high-side pressure of the refrigeration loop as measured by a second sensor. An adjustable opening of an expansion valve is adjusted to maintain a load temperature measured by the third sensor within the desired set-point temperature range.

    摘要翻译: 具有一个或多个制冷回路的蒸气压缩系统和多负载蒸汽压缩系统的控制方法包括为一个或多个负载位置处的负载温度选择所需的设定点温度范围。 然后操作蒸汽压缩系统以将热量从一个或多个负载位置传递到拒绝位置。 当蒸气压缩系统运行时,控制装置连续地调节各种参数。 调整可调节容量的压缩机的容量以相对于蒸发器负载来维持由第一传感器测量的制冷回路的最大低侧压力。 调节排出装置的可调节排出能力,以保持由第二传感器测量的制冷循环的最小高侧压力。 调节膨胀阀的可调开口,以将由第三传感器测量的负载温度保持在所需的设定温度范围内。

    DIRECT METERING FUEL SYSTEM WITH AN INTEGRAL REDUNDANT MOTOR PUMP
    9.
    发明申请
    DIRECT METERING FUEL SYSTEM WITH AN INTEGRAL REDUNDANT MOTOR PUMP 有权
    具有整体冗余电机泵的直接计量燃料系统

    公开(公告)号:US20090071442A1

    公开(公告)日:2009-03-19

    申请号:US11857902

    申请日:2007-09-19

    IPC分类号: F02M57/02

    摘要: A direct metering fuel supply system includes a plurality of axial gap motors, a fixed displacement, variable speed positive displacement piston pump, and a gas turbine engine control. Each axial gap motor is configured to be selectively energized and is operable, upon being energized, to supply a drive torque at a drive speed. The fixed displacement, variable speed positive displacement piston pump is coupled to each of the axial gap motors to receive the drive torque selectively supplied therefrom and is operable, upon receipt of the drive torque, to supply fuel at a flow rate dependent on the drive speed. The gas turbine engine control is adapted to receive fuel flow commands and is operable, in response to the fuel flow commands, to energize one of the plurality of axial gap motors.

    摘要翻译: 直接计量燃料供给系统包括多个轴向间隙马达,固定排量,可变速度正位移活塞泵和燃气涡轮发动机控制。 每个轴向间隙电动机被配置为选择性地通电,并且在通电时可以以驱动速度提供驱动转矩。 固定位移,可变速度位移活塞泵联接到每个轴向间隙马达以接收从其选择性地供应的驱动转矩,并且在接收到驱动扭矩时可操作以根据驱动速度的流量供应燃料 。 燃气涡轮发动机控制器适于接收燃料流量指令,并且可响应于燃料流量命令来操作以激励多个轴向间隙电动机之一。

    TORQUE BALANCE SERVO INCLUDING ELECTROMAGNETIC FORCE BIAS MECHANISM
    10.
    发明申请
    TORQUE BALANCE SERVO INCLUDING ELECTROMAGNETIC FORCE BIAS MECHANISM 有权
    扭矩平衡伺服包括电磁力偏移机构

    公开(公告)号:US20090206289A1

    公开(公告)日:2009-08-20

    申请号:US12033582

    申请日:2008-02-19

    IPC分类号: F16K31/10

    摘要: A torque balance servo is provided for use in conjunction with a fluidly-controlled device. The torque balance servo includes a pivoting table assembly and an electromagnetic force bias mechanism. The pivoting table assembly includes: (i) a pivoting table configured to pivot about a rotational axis, and (ii) a roller assembly mechanically coupled to the fluidly-controlled device and contacting a surface of the pivoting table. The electromagnetic force bias mechanism is disposed proximate the pivoting table assembly and configured to exert a variable torsional force about the rotational axis of the pivoting table.

    摘要翻译: 提供了与流体控制装置结合使用的扭矩平衡伺服系统。 扭矩平衡伺服包括枢转台组件和电磁力偏置机构。 枢转台组件包括:(i)枢转台,其构造成围绕旋转轴线枢转,以及(ii)机械地联接到流体控制的设备并且接触枢转台的表面的辊组件。 电磁力偏置机构设置在枢转台组件附近并且被配置为围绕枢转台的旋转轴线施加可变的扭转力。