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公开(公告)号：US06382025B1
公开(公告)日：2002-05-07
申请号：US09419033
申请日：1999-10-15
申请人： Steven L. Hunter
发明人： Steven L. Hunter
IPC分类号： G01P1500
CPC分类号： G01P13/0086 , G01P15/006 , G01P15/0888
摘要： A rate sensor for angular/rotational acceleration includes a housing defining a fluid cavity essentially completely filled with an electrolyte fluid. Within the housing, such as a toroid, ions in the fluid are swept during movement from an excitation electrode toward one of two output electrodes to provide a signal for directional rotation. One or more ground electrodes within the housing serve to neutralize ions, thus preventing any effect at the other output electrode.
摘要翻译： 用于角/旋转加速度的速率传感器包括限定基本上完全填充有电解质流体的流体腔的壳体。 在壳体内，例如环形，在从激励电极向两个输出电极之一移动期间，流体中的离子被扫掠以提供用于定向旋转的信号。 壳体内的一个或多个接地电极用于中和离子，从而防止在另一输出电极上的任何影响。
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公开(公告)号：US5291182A
公开(公告)日：1994-03-01
申请号：US764808
申请日：1991-09-24
申请人： Brian Wiseman
发明人： Brian Wiseman
CPC分类号： G01P13/002 , G01P13/0013 , G01P13/0086 , G01P13/04 , G01P5/02 , Y10T307/779
摘要： An apparatus for detecting the flow direction of a fluid between two enclosed spaces, such as hospital rooms, includes a conduit extending along a horizontal plane and adapted to receive the fluid. A detecting element is disposed within the conduit and movable in the direction of fluid flow, the detecting element being in direct contact with the fluid. A sensing element is coupled to the conduit for determining when the detecting element reaches a predetermined position within the conduit. Circuitry coupled to the sensing element, enables selection of a desired flow direction and actuates an alarm when the detected flow direction is other than the one selected.
摘要翻译： 用于检测诸如医院室之间的两个封闭空间之间的流体的流动方向的装置包括沿水平面延伸并适于接收流体的导管。 检测元件设置在导管内并可在流体流动的方向上移动，检测元件与流体直接接触。 感测元件联接到导管，用于确定检测元件何时到达导管内的预定位置。 耦合到感测元件的电路能够选择期望的流动方向，并且当检测到的流动方向不同于所选择的流动方向时，启动警报。
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公开(公告)号：US5218346A
公开(公告)日：1993-06-08
申请号：US694176
申请日：1991-05-01
申请人： Lewis D. Meixler
发明人： Lewis D. Meixler
CPC分类号： G01P13/0086 , G01F1/065
摘要： The low flow monitor provides a means for determining if a fluid flow meets a minimum threshold level of flow. The low flow monitor operates with a minimum of intrusion by the flow detection device into the flow. The electrical portion of the monitor is externally located with respect to the fluid stream which allows for repairs to the monitor without disrupting the flow. The electronics provide for the adjustment of the threshold level to meet the required conditions. The apparatus can be modified to provide an upper limit to the flow monitor by providing for a parallel electronic circuit which provides for a bracketing of the desired flow rate.
摘要翻译： 低流量监测器提供了一种用于确定流体流是否满足最小阈值流量水平的手段。 低流量监测器以流量检测装置入流最少的入侵操作。 监视器的电气部分相对于流体流在外部定位，其允许维修监视器而不中断流动。 电子设备提供阈值水平的调整以满足所需条件。 该装置可以被修改以通过提供一个并行电子电路来提供流量监视器的上限，其提供了所需流量的包围。
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公开(公告)号：US4945344A
公开(公告)日：1990-07-31
申请号：US123678
申请日：1987-11-23
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。
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公开(公告)号：US4856760A
公开(公告)日：1989-08-15
申请号：US165990
申请日：1988-03-14
CPC分类号： G01P13/0086 , G02B6/4464 , G02B6/4485
摘要： The propulsive force on an optical transmission line member moving through a tubular passageway can be varied so the line travels at or close to optimum speed without risk of damage to the line or associated apparatus. A curve is provided in a portion of the passageway such that a transmission line subject to unacceptable compressive forces buckles towards the outer side of the curve. A sensor detects the presence or absence of the line at this point and a control circuit varies the propulsive force. Excessive tension in the fibre may also be detected. A modified system uses deflectors to ensure that buckling occurs by bowing in the direction towards the sensor with the transmission line undeflected under correct tension. The invention finds particular application in a method of fibre blowing where an optical fibre transmission line is propelled along a tube by fluid drag.
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公开(公告)号：US4054779A
公开(公告)日：1977-10-18
申请号：US706797
申请日：1976-07-19
申请人： Robert A. Wilke
发明人： Robert A. Wilke
CPC分类号： G06M1/101 , A01C7/105 , G01P13/0086 , Y10S111/903
摘要： A seed monitor for a multiple station planter includes a light source adjacent each seed path and a pair of phototransistors positioned in alignment with each light source. The phototransistors for each seed path are connected to pulse generating means, each of which provide a constant width pulse in response to an interruption in light received by a phototransistor from its light source. An OR gate is connected to the pulse generating means so as to provide an output signal whenever there is a pulse at one of its inputs. The light sources for the multiple seed paths may be operated to periodically monitor each planting station.
摘要翻译： 用于多站播种机的种子监视器包括与每个种子路径相邻的光源和与每个光源对准的一对光电晶体管。 用于每个种子路径的光电晶体管连接到脉冲发生装置，每个脉冲发生装置响应于光电晶体管从其光源接收的光的中断而提供恒定的宽度脉冲。 OR门连接到脉冲发生装置，以便每当其输入之一处存在脉冲时提供输出信号。 可以操作多个种子路径的光源以周期性地监视每个种植站。
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公开(公告)号：US3268734A
公开(公告)日：1966-08-23
申请号：US31257963
申请日：1963-09-30
申请人： STEWART WARNER CORP
发明人： BJORN THOMAS E
CPC分类号： G08B21/12 , F16L2101/30 , F16N29/04 , G01N21/534 , G01P13/0086 , G08B21/16
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公开(公告)号：US20180017211A1
公开(公告)日：2018-01-18
申请号：US15649723
申请日：2017-07-14
申请人： DROPSA S.p.A.
发明人： Walter DIVISI
CPC分类号： F16N29/02 , F16N7/00 , F16N7/30 , F16N7/32 , F16N29/00 , F16N2250/34 , G01F1/74 , G01N33/28 , G01N33/2894 , G01N33/30 , G01P13/0086
摘要： A monitoring device of an oil flow mixed with air, including a tubular element coupled with at least one first and one second photoelectric sensor that emit a radiation along a first and a second optical line respectively, the tubular element being at least partially transparent to the radiation, the first and the second photoelectric sensor being mounted on the tubular element so that the first and the second optical line are mutually angled.
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公开(公告)号：US07782461B1
公开(公告)日：2010-08-24
申请号：US11697149
申请日：2007-04-05
CPC分类号： G01P13/0086 , G01F1/22 , G01F13/008
摘要： A flow metering device and method for monitoring flow of a liquid, has a body with an inlet port and an outlet port. A flow chamber is formed therein between a pair of laterally placed windows in the flow chamber. A light emitting source placed in one of the windows and a light receiver placed in a second of the windows. The flow chamber has a flow restricting and light stopping element held therein and movable between a rest position and an operating position.
摘要翻译： 一种用于监测液体流量的流量计量装置和方法，具有带入口和出口的主体。 在流动室中的一对横向放置的窗口之间形成流动室。 放置在一个窗口中的发光源和放置在第二窗口中的光接收器。 流动室具有流动限制和止动元件，其保持在其中并且可在静止位置和操作位置之间移动。
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