公开(公告)号：US06823730B2

公开(公告)日：2004-11-30

申请号：US09789698

申请日：2001-02-22

申请人： Bernd Buck ,  Jochen Gundlach ,  Jaromir Palata

发明人： Bernd Buck ,  Jochen Gundlach ,  Jaromir Palata

IPC分类号： G01F2300

CPC分类号： G01F23/265 ,  G01F23/266 ,  G01F23/268

摘要： A capacitive fill level measurement device with a fill level sensor having a plurality of sensor fields, electrical wires for electrically connecting the plurality of sensor fields to a multipole side of a selector switch, and a power supply and evaluation circuit electrically connected to a monopole side of the selector switch. The capacitive fill level measurement device can be made with simple production technology and thus economically for a host of different applications using a matrix of printed conductors which extend vertically and horizontally such that each horizontally extending printed conductor on one side is connected to one sensor field and on the other side connected to a vertically extending printed conductor. Each horizontally extending printed conductor is connected with a respective vertically extending printed conductor to form an electrical line or a part of an electrical line.

摘要翻译： 一种电容式填充液位测量装置，其具有具有多个传感器场的填充液位传感器，用于将多个传感器场电连接到选择器开关的多极侧的电线，以及电连接到单极侧的电源和评估电路 的选择开关。 电容式填充液位测量装置可以用简单的生产技术制造，并且因此经济地用于使用垂直和水平延伸的印刷导体矩阵的大量不同应用，使得一侧上的每个水平延伸的印刷导体连接到一个传感器场， 在另一侧连接到垂直延伸的印刷导体。 每个水平延伸的印刷导体与相应的垂直延伸的印刷导体连接以形成电线或电线的一部分。

公开(公告)号：US06799458B2

公开(公告)日：2004-10-05

申请号：US09849201

申请日：2001-05-04

申请人： Keith N. Ismail ,  Oscar Alfonso Lecea ,  Steven Douglas Thomson

发明人： Keith N. Ismail ,  Oscar Alfonso Lecea ,  Steven Douglas Thomson

IPC分类号： G01F2300

CPC分类号： G01F23/265 ,  G01F23/268 ,  G01N33/2888

摘要： An oil level/condition sensor includes a first level sensing tube, a common tube, and a second level sensing tube. The tubes are concentric to each other around a central axis. Moreover, the tubes are separated by plastic spacers which insulate the level sensing tubes from the common tube and maintain the concentricity of the tubes. Installed in the end of the first level sensing tube is a coupling/plug and disposed around the coupling/plug is a first condition sensing tube. The coupling/plug insulates the first level sensing tube from the first condition sensing tube and prevents fluid communication therebetween. A second condition sensing tube is attached to the second level sensing tube around the common tube and the first condition sensing tube. A ring-shaped insulator electrically isolates the second condition sensing tube from the second level sensing tube. The multiple tube configuration provides increased sensing surface area without increasing the length of the sensor or dramatically increasing the overall diameter of the sensor package. As such, the increased sensing surface area increases the signal strength and the accuracy of the sensor. Thus, the sensor is used in relatively shallow oil pans where the length of the sensor is constrained by the depth of the oil pan.

摘要翻译： 油位/状态传感器包括第一级感测管，公共管和第二级感测管。 这些管围绕中心轴线彼此同心。 此外，管由塑料间隔隔开，塑料间隔件将液位传感管与普通管隔开并保持管的同心度。 安装在第一级感测管的末端是耦合/插头并且设置在耦合/插头周围的是第一状态感测管。 联接/插塞使第一级感测管与第一状态感测管绝缘，并防止其间的流体连通。 第二条件感测管附接到围绕公共管和第一条件感测管的第二级感测管。 环形绝缘体将第二状态感测管与第二电平感测管电隔离。 多管构造提供增加的感测表面积，而不增加传感器的长度或显着增加传感器封装的总直径。 因此，增加的感测表面积增加了信号强度和传感器的精度。 因此，传感器用于相对较浅的油底壳中，传感器的长度受到油盘深度的限制。

公开(公告)号：US06761066B2

公开(公告)日：2004-07-13

申请号：US10288309

申请日：2002-11-06

申请人： Joseph Rait

发明人： Joseph Rait

IPC分类号： G01F2300

CPC分类号： G01F23/22

摘要： A level indicator and method is provided which is intimately affixed to the outside surface of the outside wall of a container, for use in the determination of the level of the interface between a mass of flowable material and the void volume above it within a container. The level indicator includes a thermochromataic layer which has at least two thermochromatic materials. Each of the thermochromatic materials responds chromatically within a different operating temperature range. In one embodiment, the level indicator vertically extends substantially the height of the container. In an alternative embodiment, the level indicator vertically extends along the height of the container, in the region of the top portion of the container, and at least above the legal safe-fill level of the flowable material within the container such that overfilling of the flowable material in the container is detectable.

摘要翻译： 提供了一种水平指示器和方法，其紧密地固定到容器的外壁的外表面上，以用于确定容器内的可流动材料块与其上方的空隙体积之间的界面的水平。 电平指示器包括具有至少两个热色材料的热色层。 每个热色材料在不同的工作温度范围内进行色彩反应。 在一个实施例中，液位指示器基本垂直地延伸到容器的高度。 在替代实施例中，液位指示器沿着容器的高度在容器的顶部区域中垂直地延伸，并且至少高于容器内的可流动材料的合法安全填充水平，使得过度填充 容器中的可流动材料是可检测的。

公开(公告)号：US06705162B2

公开(公告)日：2004-03-16

申请号：US10014871

申请日：2001-12-14

申请人： Luigi Amoretti

发明人： Luigi Amoretti

IPC分类号： G01F2300

CPC分类号： G01F23/242

摘要： A probe assembly for monitoring the water level in boilers with an electric immersion resistor heater, of the type that comprises at least one sensor element to be arranged inside a hollow body which is in turn associated and partially inserted in the boiler. The hollow body has, on the portion arranged outside the boiler, a plug which axially supports the sensor element; the end of the sensor element arranged at the plug is connected, when the plug is installed, by way of at least one electrical contact, to an electrical power supply cable, whose contact end is arranged at the portion of hollow body that is arranged outside the boiler.

摘要翻译： 一种用于利用电浸电阻器加热器监测锅炉中的水位的探针组件，该探头组件包括至少一个传感器元件，该传感器元件布置在空心体内，该中空体又相关联并部分地插入在锅炉中。 该空心体在布置在锅炉外部的部分上具有轴向支撑传感器元件的塞子; 布置在插头处的传感器元件的端部通过至少一个电接触被连接到电源电缆上，电源电缆的接触端设置在外部设置的中空体的部分 锅炉。

公开(公告)号：US06679115B2

公开(公告)日：2004-01-20

申请号：US10074241

申请日：2002-02-14

申请人： Frank Heidecke

发明人： Frank Heidecke

IPC分类号： G01F2300

CPC分类号： G01S7/288 ,  G01F23/284 ,  G01S13/103 ,  G01S13/88

摘要： An apparatus for determining the filling level of a product in a container with a transmission unit which generates high-frequency signals and emits them at a predetermined pulse repetition frequency in the direction of the surface of the filled product. The signals are reflected by the surface of the filled product and are received by a receiving unit. A delay circuit transforms the high-frequency signals/reflected signals into low-frequency signals in accordance with a predetermined translation factor and with an evaluation unit which determines the filling level of the product in the container on the basis of the delay time of the signals. The delay circuit includes: a transmission oscillator; a sampling oscillator; a digital sampling circuit; and a closed-loop/open-loop control unit.

摘要翻译： 一种用于确定具有发送单元的容器中的产品的填充水平的装置，其产生高频信号并以预定的脉冲重复频率在填充产品的表面的方向上发射它们。 信号由填充产品的表面反射并由接收单元接收。 延迟电路根据预定的平移因子将高频信号/反射信号变换成低频信号，并且利用评估单元，其基于信号的延迟时间来确定容器中产品的填充水平 。 延迟电路包括：发送振荡器; 采样振荡器; 数字采样电路; 以及闭环/开环控制单元。

公开(公告)号：US06672244B1

公开(公告)日：2004-01-06

申请号：US10159071

申请日：2002-05-31

申请人： Michael J. Martin

发明人： Michael J. Martin

IPC分类号： G01F2300

CPC分类号： G01F23/0015

摘要： A fuel level indicator system includes a housing member that is couplable to a fuel tank. The housing member is positionable adjacent to a vent opening in the fuel tank. The housing member defines an interior space. The housing member has a lower aperture facilitating environmental communication between the interior space and an interior of the fuel tank. The housing member has an upper aperture. A vent portion is coupled to the housing. The vent portion is in environmental communication with the interior space of the housing member via the upper aperture. The vent portion facilitates air flow from the interior of the fuel tank through the housing and out of the system. A whistle assembly is positioned substantially within the housing. The whistle assembly produces an aural indication of airflow through the housing member.

摘要翻译： 燃料液位指示器系统包括可连接到燃料箱的壳体构件。 壳体构件可靠近燃料箱中的通风口。 壳体构件限定内部空间。 壳体构件具有较低的孔，便于内部空间与燃料箱的内部之间的环境连通。 壳体构件具有上孔。 排气部分联接到壳体。 通气部分经由上孔与壳体构件的内部空间环境连通。 排气部分便于空气从燃料箱的内部流过壳体并流出系统。 口哨组件基本上位于壳体内。 口哨组件产生通过壳体构件的气流的听觉指示。

公开(公告)号：US06672155B2

公开(公告)日：2004-01-06

申请号：US09975083

申请日：2001-10-12

申请人： Roland Müller ,  Winfried Maier ,  Wolfgang Lubcke ,  Thomas Malzahn

发明人： Roland Müller ,  Winfried Maier ,  Wolfgang Lubcke ,  Thomas Malzahn

IPC分类号： G01F2300

CPC分类号： G01S15/025 ,  G01F23/284 ,  G01S7/032 ,  G01S7/521 ,  G01S13/88 ,  G01S15/10 ,  G01S15/88

摘要： The invention relates to an apparatus for determining the filling level of a filling material in a container having a signal production unit which produces measurement signals, having at least one antenna which transmits the measurement signals in the direction of the surface of the filling material and which receives the measurement signals reflected on the surface of the filling material, and having a control/evaluation unit which uses the delay time of the measurement signals to determine the filling level of the filling material in the container. The apparatus allows a filling level measurement device, which operates on the delay-time principle, to be mounted on a container in a cost-effective and simple manner. An opening is provided in the upper region of one sidewall of the container, and in that the at least one antenna is positioned in this opening with the antenna being arranged and configured such that the measurement signals are emitted essentially in the direction of the surface of the filling material and such that the measurement signals reflected on the surface of the filling material are received by the at least one antenna.

摘要翻译： 本发明涉及一种用于确定容器中填充物料的填充水平的装置，该容器具有产生测量信号的信号产生单元，该测量信号具有至少一个天线，该天线在填充材料的表面方向上传送测量信号， 接收反映在填充材料表面上的测量信号，并且具有使用测量信号的延迟时间来确定容器中的填充材料的填充水平的控制/评估单元。 该装置允许以延迟时间原理操作的填充液位测量装置以成本有效且简单的方式安装在容器上。 开口设置在容器的一个侧壁的上部区域中，并且至少一个天线位于该开口中，天线被布置和配置成使得测量信号基本上沿着 填充材料，并且使得在填充材料的表面上反射的测量信号被至少一个天线接收。

公开(公告)号：US06658933B2

公开(公告)日：2003-12-09

申请号：US09888038

申请日：2001-06-22

申请人： Xavier Allegre ,  Danier Bouvier ,  Gilbert Spiesser

发明人： Xavier Allegre ,  Danier Bouvier ,  Gilbert Spiesser

IPC分类号： G01F2300

CPC分类号： G01F23/2927 ,  Y10S250/90 ,  Y10S250/902

摘要： Fill-level indicating device includes an array of optical detectors attached to a mount, vertically spaced apart relative to one another and distributed within the tank over the height of the latter, with each detector including a light source and a receiver, and means for feeding electric power to the light sources of the various detectors, for processing the signals arriving at the various receivers and for transmitting these to a liquefied-gas fill-level display gauge. The mount and the detectors on it are encapsulated in a synthetic resin that is highly transparent to the light beam emitted by the light sources and the surface of the resin facing the detectors is such that the beam emitted by the corresponding light source is reflected toward the associated receiver.

摘要翻译： 填充级指示装置包括附接到安装件的光学检测器的阵列，其相对于彼此垂直间隔开并且在箱体的高度上分布在罐中，每个检测器包括光源和接收器，以及用于进给的装置 对各种检测器的光源的电力，用于处理到达各种接收器的信号并将其发送到液化气体填充液位显示计。 安装件和其上的检测器被封装在对由光源发射的光束高度透明的合成树脂中，并且面向检测器的树脂表面使得由相应光源发射的光束被反射向 相关接收机。

公开(公告)号：US06622557B2

公开(公告)日：2003-09-23

申请号：US10125061

申请日：2002-04-17

申请人： Sven Petzold

发明人： Sven Petzold

IPC分类号： G01F2300

CPC分类号： B60S1/50 ,  G01F23/268

摘要： In a level sensor (1) having a pair of measuring electrodes (4) and a pair of reference electrodes (5), reference electrodes (5a, 5b) have a horizontal section (12). The horizontal section (12) extends over the entire width of a container (2). In this way, physically limited inhomogeneities in the liquid in the container (2) are compensated for in the measurement of a reference variable.

公开(公告)号：US06606905B2

公开(公告)日：2003-08-19

申请号：US09930653

申请日：2001-08-15

申请人： Carlton W. Carroll ,  A. David Klein

发明人： Carlton W. Carroll ,  A. David Klein

IPC分类号： G01F2300

CPC分类号： G01G3/12 ,  G01F23/14 ,  G01G17/04

摘要： A liquid level and weight sensor utilizes a pressure sensor of any type positioned at the base of the liquid or weight. A second pressure sensor is positioned external to the liquid or weight to measure the ambient pressure. Ambient pressure is subtracted from the total pressure indicated by the base positioned pressure sensor to determine the actual pressure exerted by the liquid or weight on the base positioned sensor. The actual pressure is then utilized in the calculation of liquid level or weight. The determination of liquid level requires that both the pressure and density of the liquid be known. When the density of the liquid is not known, a third pressure sensor is inserted in the tank at a known level above the first. The differential pressure and differential level are determinative of the liquid's density.

摘要翻译： 液位和重量传感器利用位于液体或重物底部的任何类型的压力传感器。 第二压力传感器位于液体或重物的外部，以测量环境压力。 从由基座定位的压力传感器指示的总压力中减去环境压力，以确定由液体或重量施加在基座定位传感器上的实际压力。 然后将实际压力用于液位或重量的计算。液位的测定要求液体的压力和密度都是已知的。 当液体的密度未知时，第三压力传感器以高于第一压力的已知水平插入罐中。 差压和差压水平决定了液体的密度。