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公开(公告)号：US20130269432A1
公开(公告)日：2013-10-17
申请号：US13977158
申请日：2011-12-22
IPC分类号： G01F23/44
CPC分类号： G01F23/44 , G01F23/0038 , G01F23/46
摘要： An electromechanical, fill-level, measuring device, comprising: a float, an outer drum with an outer ring of magnets, an inner drum with an inner ring of magnets, electromagnetic measuring elements, a measuring shaft with, and a servomotor with an drive shaft. The drive shaft is coupled with the measuring shaft via a transmission, wherein the servomotor rotates the measuring shaft via the transmission as a function of a control signal ascertained from the difference value of the measuring elements, so that, by relative movement between the outer and inner drums produced by a change of the liquid level to be measured, the difference value is returned to zero and from the rotation of the measuring shaft the current fill level measured value is ascertained. Sensor electronics is arranged on the measuring shaft within the inner drum, and radial, rotary transformer is embodied on the measuring shaft for transmitting at least the control signals from the sensor electronics to the main electronics and supplying for at least the sensor electronics with energy.
摘要翻译： 一种机电填充水平的测量装置，包括：浮子，具有外圈磁体的外滚筒，具有内环磁体的内滚筒，电磁测量元件，带有驱动器的测量轴和具有驱动器的伺服马达 轴。 驱动轴通过变速器与测量轴联接，其中伺服马达根据测量元件的差值确定的控制信号经由变速器旋转测量轴，从而通过外部和 通过测量液位的变化产生的内鼓，差值返回到零，并且从测量轴的旋转确定当前的填充水平测量值。 传感器电子设置在内鼓内的测量轴上，并且径向旋转变压器体现在测量轴上，用于至少传输来自传感器电子器件的控制信号到主电子设备，并为至少传感器电子设备提供能量。
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公开(公告)号：US07725273B2
公开(公告)日：2010-05-25
申请号：US11985650
申请日：2007-11-16
申请人： Louis J. Jannotta
发明人： Louis J. Jannotta
IPC分类号： G01F23/00
摘要： An apparatus for monitoring a height of liquid in a liquid storage tank is provided, the apparatus includes a first rotatable element rotatable in response to a change of a liquid level in a liquid storage tank and including a first magnetic component having a first magnetic field, and a second rotatable element rotatable in response to the rotation of the first rotatable element and including a second magnetic component having a second magnetic field. The apparatus further includes a sensor assembly which includes a first sensor component located within range of the first magnetic field and structured to be effective in providing a first signal indicative of a position of the first magnetic component, and a second sensor component located within range of the second magnetic field and structured to be effective in providing a second signal indicative of a position of the second magnetic component. The apparatus further includes a data transmitter/microprocessor assembly in electronic communication with the sensor assembly and structured to be effective in receiving the first and second signals from the first and second sensor components, respectively, and processing said first and second signals into data representing a height of liquid in a liquid storage tank.
摘要翻译： 提供了一种用于监测液体储存罐中的液体高度的装置，该装置包括可响应于储液箱中的液位变化而旋转的第一可旋转元件，并且包括具有第一磁场的第一磁性部件， 以及第二可旋转元件，其响应于第一可旋转元件的旋转而可旋转并且包括具有第二磁场的第二磁性部件。 该装置还包括传感器组件，其包括位于第一磁场范围内的第一传感器部件，并被构造成有效地提供指示第一磁性部件的位置的第一信号和位于第一磁性部分的范围内的第二传感器部件 所述第二磁场被构造为有效地提供指示所述第二磁性部件的位置的第二信号。 该装置还包括与传感器组件电子通信的数据发射器/微处理器组件，并被构造成分别有效地接收来自第一和第二传感器部件的第一和第二信号，并将所述第一和第二信号处理成表示 液体储存罐中液体的高度。
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公开(公告)号：US4459584A
公开(公告)日：1984-07-10
申请号：US340528
申请日：1981-12-21
申请人： Marvin R. Clarkson
发明人： Marvin R. Clarkson
CPC分类号： G01F23/46 , G08B21/182 , Y10T137/8342
摘要： An automatic liquid level indicator and alarm system (10) that automatically emits an alarm when liquid in a vessel reaches a preselected low or high level. The system (10) is particularly adaptable for use on petroleum storage tanks (50) of the type found on petroleum tank farms. The system (1) comprises a low-level and a high-level permanent magnet (10) (11); a low-level and a high-level magnetic sensor (24) (25); an encoder-RF transmitter (15) (16); an RF receiver-decoder (18) (19); an alpha-numeric display (20) and an audible alarm (21). The magnets (10) (11) are attached to an existing movable tape (31) whose position at any instant is relative to the position of a float (41) within the tank (50). The magnets (10) (11) are located at positions indicative of the preselected low or high level marks. When either magnet (10) (11) is juxtaposed with its respective sensor (24) (25) a signal is transmitted by the encoder-RF transmitter (15) (16) and is received by the RF receiver-decoder (18) (19) located at a remote monitor station. The signal is displayed on the display (20) and simultaneously the alarm (21) is energized to alert station personnel of the incoming signal.
摘要翻译： PCT No.PCT / US80 / 01378 Sec。 371日期1981年12月21日 102（e）日期1981年12月21日PCT 1980年10月15日提交。一种自动液位指示器和报警系统（10），当液体在容器中达到预定的低或高水平时，自动发出报警。 系统（10）特别适用于在石油储罐农场中发现的类型的石油储罐（50）。 系统（1）包括低级和高级永磁体（10）（11）; 低级和高级磁传感器（24）（25）; 编码器RF发射器（15）（16）; RF接收器 - 解码器（18）（19）; 字母数字显示器（20）和声音报警器（21）。 磁体（10）（11）附接到现有的可移动带（31），其位置在任何时刻相对于罐（50）内的浮子（41）的位置。 磁体（10）（11）位于指示预选的低或高电平标记的位置。 当磁体（10）（11）与其相应的传感器（24）（25）并置时，由编码器RF发射器（15）（16）传输信号，并由RF接收器 - 解码器（18）（ 19）位于远程监控站。 信号显示在显示器（20）上，同时报警器（21）通电，向车站人员报警。
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公开(公告)号：US1937394A
公开(公告)日：1933-11-28
申请号：US47273230
申请日：1930-08-02
申请人： THORESEN JOHN C
发明人： THORESEN JOHN C
IPC分类号： G01F23/46
CPC分类号： G01F23/46
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公开(公告)号：US20170010147A1
公开(公告)日：2017-01-12
申请号：US15039897
申请日：2014-11-28
发明人： James Geza DEAK , Mark C. TONDRA
摘要： The present invention provides a non-contact pulley liquid level sensor, comprising a float capable of floating up and down and floating on a liquid surface, a tether, at least one pulley, a permanent magnet and a magnetic field angle sensor, wherein two ends of the tether are tied to the float, and are wound on the top end pulley and the optional bottom end pulley, the permanent magnet is installed on one side of the top end pulley and rotates together with the top end pulley under the effect of a friction torque produced by the tether. The magnetic field angle sensor detects a magnetic field produced by the permanent magnet and converts a rotation angle of the magnetic field into a voltage signal, then according to a relationship between the rotation angle of the permanent magnet and a floating distance of the float, a liquid level height is calculated via the output voltage signal. A gear can also be used to calibrate the operating range and accuracy of the liquid level sensor. The liquid level sensor has the advantages of simple design, wide measurement range, easiness in sealing and the like.
摘要翻译： 本发明提供了一种非接触式滑轮液面传感器，其包括能够在液面上上下漂浮的浮子，系绳，至少一个滑轮，永磁体和磁场角传感器，其中两端 将系绳固定在浮子上，并缠绕在顶端滑轮和可选的底端滑轮上，永磁体安装在顶端滑轮的一侧，并与顶端滑轮一起旋转， 由系绳产生的摩擦力矩。 磁场角传感器检测由永久磁铁产生的磁场，并将磁场的旋转角度转换为电压信号，然后根据永磁体的旋转角度与浮子的浮动距离之间的关系， 液位高度通过输出电压信号计算。 也可以使用齿轮来校准液位传感器的操作范围和精度。 液位传感器具有设计简单，测量范围宽，密封容易等特点。
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公开(公告)号：US09506799B2
公开(公告)日：2016-11-29
申请号：US14430197
申请日：2013-09-06
发明人： Hiroyuki Iryo , Yoshiyuki Shimazaki
摘要： Provided is a liquid level detection device with excellent bonding strength between components. This liquid level detection device is provided with a holder which has a magnet inside and which rotates in response to displacement of a float floating in the liquid the level of which is to be measured, a main body unit which rotatably supports the holder and has a magnetic detection element which detects magnetic pole change accompanying rotational movement of the magnet, and a cover which covers the holder and which is attached by welding to the main body unit to prevent the holder from falling away from the main body unit. The cover is welded to the main body unit by melting protrusions formed on the main body unit.
摘要翻译： 提供了一种液面检测装置，其在各部件之间具有优异的接合强度。 该液位检测装置具有保持器，该保持器具有内部的磁体，并且响应于浮动在其水平被测量的液体中的浮子的位移而旋转;保持器，其可旋转地支撑保持器并具有 磁性检测元件，其检测伴随着磁体的旋转运动的磁极变化;以及盖，其覆盖保持件并且通过焊接附接到主体单元以防止保持器从主体单元脱落。 通过熔化形成在主体单元上的突起，将盖焊接到主体单元。
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公开(公告)号：US06502461B2
公开(公告)日：2003-01-07
申请号：US09779330
申请日：2001-02-08
申请人： John M. Keller
发明人： John M. Keller
IPC分类号： G01F2300
摘要： A method and system for remote monitoring of liquid level 21 within a container 12, such as the level of fuel within a propane cylinder. A magnetic float 20 disposed within the container 12 floats on the liquid 21, and lowers with the liquid level as fuel is consumed. Magnetic sensors 22 outside the container 12 sense the float 20 as it passes in the proximity of one of the sensors 22. A controller 26 receives output signals from the sensors 22 and transmits level indicating signals to a gauge 28 or other indicator for remote indication of the corresponding liquid level. The indicator 28 can be located proximal the user's direct line of sight, to remind the user to periodically monitor the fuel level to prevent running out of fuel.
摘要翻译： 用于远程监测容器12内的液位21的方法和系统，例如丙烷气缸内的燃料水平。 设置在容器12内的磁浮子20漂浮在液体21上，随着燃料被消耗而降低液面。 在容器12外部的磁性传感器22在传感器22中的一个传感器22附近感测浮子20.控制器26接收来自传感器22的输出信号，并将液位指示信号传送到量规28或其它指示器，用于远程指示 相应的液位。 指示器28可以位于用户的直接视线附近，以提醒用户周期性地监视燃料水平以防止燃料流失。
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公开(公告)号：US20010032506A1
公开(公告)日：2001-10-25
申请号：US09779330
申请日：2001-02-08
发明人： John M. Keller
IPC分类号： G01F023/36
摘要： A method and system for remote monitoring of liquid level 21 within a container 12, such as the level of fuel within a propane cylinder. A magnetic float 20 disposed within the container 12 floats on the liquid 21, and lowers with the liquid level as fuel is consumed. Magnetic sensors 22 outside the container 12 sense the float 20 as it passes in the proximity of one of the sensors 22. A controller 26 receives output signals from the sensors 22 and transmits level indicating signals to a gauge 28 or other indicator for remote indication of the corresponding liquid level. The indicator 28 can be located proximal the user's direct line of sight, to remind the user to periodically monitor the fuel level to prevent running out of fuel.
摘要翻译： 用于远程监测容器12内的液位21的方法和系统，例如丙烷气缸内的燃料水平。 设置在容器12内的磁浮子20漂浮在液体21上，随着燃料被消耗而降低液面。 在容器12外部的磁性传感器22在传感器22中的一个传感器22附近感测浮子20.控制器26接收来自传感器22的输出信号，并将液位指示信号传送到量规28或其它指示器，用于远程指示 相应的液位。 指示器28可以位于用户的直接视线附近，以提醒用户周期性地监视燃料水平以防止燃料流失。
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公开(公告)号：US20160231161A1
公开(公告)日：2016-08-11
申请号：US15024864
申请日：2014-09-26
发明人： James Geza Deak , Mark C. Tondra
IPC分类号： G01F23/44
摘要： A multiturn pulley liquid level sensor device for measuring a liquid level in a well and in a container, comprising a mechanical float which is fastened to a fastening rope and which can slide up and down. The fastening rope is installed on one or more pulleys, and as the float moves up and down, the pulley rotates back and forth. One pulley is mechanically coupled to one digital absolute magnetic rotation encoder device, and the encoder device is used for monitoring the total rotation angle of the pulley in real time. By way of using an algorithm, the total rotation angle of the pulley is converted into a distance from the bottom to calculate the height of a liquid level. A multiwheel encoder has two reading types, i.e., one is an electrical signal reading type, and the other is an optical signal reading type. The electronic output of said encoder may be used as input to an industrial control system, or be sent via communications link to a remote or the internet. The precision of the level measurement is determined by the number of encoder wheels. A mechanical gear or belt can adjust the total number of pulley turns corresponding to the full range of liquid level measurement.
摘要翻译： 一种用于测量井和容器中的液面的多圈滑轮液面传感器装置，包括紧固在紧固绳上并可上下滑动的机械浮子。 紧固绳安装在一个或多个滑轮上，并且当浮子上下移动时，滑轮来回旋转。 一个滑轮机械耦合到一个数字绝对磁旋转编码器装置，编码器装置用于实时监测皮带轮的总旋转角度。 通过使用算法，滑轮的总旋转角度被转换成与底部的距离，以计算液位高度。 多轮编码器具有两种读取类型，即一种是电信号读取类型，另一种是光信号读取类型。 所述编码器的电子输出可以用作工业控制系统的输入，或者通过通信链路发送到远程或互联网。 液位测量的精度由编码器轮数决定。 机械齿轮或皮带可以调整与全液位测量相对应的滑轮总数。
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