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89 条记录 (耗时 0.015 秒)

    Fluid flow sensor having light reflective slider
    1.
    发明授权
    Fluid flow sensor having light reflective slider 失效
    具有光反射滑块的流体流量传感器

    公开(公告)号：US4945344A

    公开(公告)日：1990-07-31

    申请号：US123678

    申请日：1987-11-23

    申请人： Jonathon E. Farrell ,  Mark C. Anthony

    发明人： Jonathon E. Farrell ,  Mark C. Anthony

    IPC分类号： G01F1/28 ,  G01P13/00

    CPC分类号： G01P13/0086 ,  G01F1/28 ,  G01P13/0033 ,  Y10S73/11

    摘要： A flow sensor for detecting the absence of a minimum fluid flow in a sprinkler system. The fluid acts upon a vane positioned in the fluid path. Movement of the vane controls the position of a slider. The slider's surface has reflective and nonreflective ends which, in response to the vane's movement reflect or absorb light from a light emission and detection means. The voltages from the light emission and detection means are monitored for indications of the fluid flow. The sensor uses a two wire signal transmitting system.

    摘要翻译： 一种流量传感器，用于检测洒水系统中最小流体流量的不存在。 流体作用在位于流体路径中的叶片上。 叶片的运动控制滑块的位置。 滑块的表面具有反射和非反射端，响应于叶片的运动反射或吸收来自发光和检测装置的光。 监测来自发光和检测装置的电压以获得流体流动的指示。 传感器使用双线信号传输系统。

    Liquid-vapor change of phase detector
    2.
    发明授权
    Liquid-vapor change of phase detector 失效
    相位检测器的液 - 气变化

    公开(公告)号：US4931774A

    公开(公告)日：1990-06-05

    申请号：US233065

    申请日：1988-08-17

    申请人： Wesley J. Bachman

    发明人： Wesley J. Bachman

    IPC分类号： G01N15/00 ,  G01N21/35 ,  G01N21/85

    CPC分类号： G01N21/85 ,  G01N21/3577 ,  G01N2015/0011 ,  G01N21/35 ,  Y10S73/11

    摘要： An apparatus for detecting a liquid-vapor change of phase in a fluid substance traveling through a conduit comprises a detector housing providing a path of travel for fluid and interposed in a portion of the fluid-carrying conduit in which the change of phase is to be detected, a source of radiation disposed for directing radiation into the path of travel and a detector for detecting radiation disposed generally at an opposite side of the path of travel from the said source. The arrangement is such that radiation from the source will pass through the fluid in the path of travel prior to reaching the detector. The detector is responsive to radiation detected thereat for producing a corresponding electrical signal. A detector circuit is responsive to the electrical signal produced by said detector for producing an output signal indicative of a liquid-vapor change of phase of the fluid in the conduit.

    Method of calibrating an apparatus for detecting the fill level in a fiber storing device
    3.
    发明授权
    Method of calibrating an apparatus for detecting the fill level in a fiber storing device 失效
    校准用于检测纤维存储装置中的填充水平的装置的方法

    公开(公告)号：US4870854A

    公开(公告)日：1989-10-03

    申请号：US250448

    申请日：1988-09-28

    申请人： Fritz Hosel

    发明人： Fritz Hosel

    IPC分类号： D01G23/00 ,  D01G23/02

    CPC分类号： D01G23/02 ,  Y10S73/11

    摘要： A method of calibrating and adjusting an apparatus for determining the fill level of a selected specific fiber material in a filling chute of a fiber storing device. The apparatus includes an optical device situated above an expected maximum fill level in the filling chute and having a light emitter arranged to direct a light beam from above onto an upper face of the fiber material and a light detector arranged to receive a light beam reflected from the upper face, a microcomputer, including a microprocessor, operatively connected to the apparatus for receiving detector signals from the apparatus. The calibrating method comprises the steps of providing two vertically spaced fixed markings on a side wall of the filling chute; charging the filling chute with a fiber material of a specific type; generating detector signals when the level of the fiber material in the filling chute reaches the lower and the upper marking, respectively, whereby the generated detector signals represent two known height levels of the fiber material of specific type; and storing the generated detector signals in the microcomputer, whereby calibration of the apparatus for the fiber material of the specific fiber type is obtained.

    摘要翻译： 一种校准和调整用于确定纤维存储装置的填充槽中所选择的特定纤维材料的填充水平的装置的方法。 该装置包括位于填充斜槽中的预期最大填充水平上方的光学装置，并且具有布置成将光束从上方引导到纤维材料的上表面上的光发射器，以及光检测器，被布置成接收从 上表面，包括微处理器的微计算机，可操作地连接到装置，用于从装置接收检测器信号。 校准方法包括在填充槽的侧壁上设置两个垂直间隔的固定标记的步骤; 用特定类型的纤维材料对填充槽进行充填; 当填充槽中的纤维材料的水平分别达到下标记和上标记时，产生检测器信号，由此产生的检测器信号表示特定类型的纤维材料的两个已知高度水平; 并将生成的检测器信号存储在微型计算机中，由此获得特定纤维类型的纤维材料的装置的校准。

    Analog flow meter instrument
    4.
    发明授权
    Analog flow meter instrument 失效
    模拟流量计仪表

    公开(公告)号：US4864870A

    公开(公告)日：1989-09-12

    申请号：US221721

    申请日：1988-07-20

    申请人： Kenneth R. Payne ,  Norman G. Lebeck

    发明人： Kenneth R. Payne ,  Norman G. Lebeck

    IPC分类号： G01F1/22

    CPC分类号： G01F1/22 ,  Y10S73/11

    摘要： An analog flow meter instrument includes a flow meter monitoring the flow of fluid. A sensor unit is secured to the flow meter and include an indicator rod in an oil filled tube. The rod extends into the flow meter and is positioned in accordance with the flow. The sensor includes a housing having a slot to visually read the location of the rod. A light beam unit is mounted to one side of the tube and a plurality of phototransistors in a linear array are mounted to the opposite side of the tube. The phototransistors are connected in a current summing network to generate an analog current signal, the amplitude of which is linearly related to the fluid flow. The output signal is amplified and connected to output devices. The analog signal can be reliably transmitted over relatively long distances within the factory environment using conventional low voltage wiring. A "dirty" oil monitor is connected to the zero flow phototransistor and includes an LED which is energized at zero flow and with flow if the dirty oil blocks proper light transmission.

    摘要翻译： 模拟流量计仪表包括一个监测流体流量的流量计。 传感器单元固定到流量计，并且在充满油的管中包括指示杆。 杆延伸到流量计中并根据流量定位。 传感器包括具有狭槽的外壳，用于可视地读取杆的位置。 光束单元安装在管的一侧，并且线性阵列中的多个光电晶体管安装在管的相对侧。 光电晶体管连接在电流求和网络中以产生模拟电流信号，其幅度与流体流线性相关。 输出信号被放大并连接到输出设备。 模拟信号可以使用传统的低压布线在工厂环境中通过相当长的距离可靠地传输。 一个“脏”油监视器连接到零流量光电晶体管，并且包括一个在零流动时通电的LED，如果脏油阻挡适当的光透射，则流过。