公开(公告)号：US20190240985A1

公开(公告)日：2019-08-08

申请号：US16317362

申请日：2016-10-07

申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

发明人： Ning Ge ,  Chien-Hua Chen ,  Michael W. Cumbie

IPC分类号： B41J2/175 ,  B41J2/195 ,  G01F23/24

CPC分类号： B41J2/17566 ,  B41J2/195 ,  B41J2002/17579 ,  G01F23/0061 ,  G01F23/242 ,  G01F23/243

摘要： A fluid reservoir (101) includes a number of electrode pairs disposed within the fluid reservoir. Each of the electrode pairs includes a number of sensing electrodes (103), and a number of electrical traces (105) wherein the sensing electrodes are coupled to a respective one of the electrical traces. The fluid reservoir also includes a common electrode (104) electrically coupled to a voltage source (106). A number of properties of a fluid (110) within the fluid reservoir are detected by applying a voltage between the sensing electrodes in an electrode pair, and a level of the fluid within the fluid reservoir is detected by applying a voltage between the electrodes and the common electrode. A multiplexer (102) may be used to selectively couple the sensing electrodes (103) to a processing device (108). The fluid reservoir may be a printing fluid container.

公开(公告)号：US09846069B2

公开(公告)日：2017-12-19

申请号：US14439448

申请日：2014-01-14

申请人： Electrolux Home Products Corporation N. V.

发明人： Paolo Faraldi ,  Giacomo Martello ,  Riccardo Foiera ,  Nicola Valpiani ,  Edoardo Betti

IPC分类号： G01F23/24 ,  G01F23/00

CPC分类号： G01F23/24 ,  G01F23/0061 ,  G01F23/243

摘要： A level measurement system for conductive liquids including a liquid container (10) and at least three electrodes (18, 20, 22) arranged inside the liquid container (10) at different levels. The electrodes (18, 20, 22) are connected to a network including a plurality of resistor elements (R, R1, R2, R3, RP1, RP2, RR1, RR2). The network includes at least two input terminals (V+, GND) for applying an external voltage and at least two output terminals providing a voltage depending on the level of the conductive liquid in the liquid container (10). The level measurement system is provided for detecting at least three different levels of conductive liquids in the liquid container (10) and indicating the levels by one voltage value. The level measurement system may be used for water in a storage container such as in a domestic appliance having a liquid container for supplying the domestic appliance with liquid.

公开(公告)号：US20170176235A1

公开(公告)日：2017-06-22

申请号：US14973687

申请日：2015-12-17

申请人： Simmonds Precision Products, Inc.

发明人： DAVID H. CROWNE

IPC分类号： G01F23/24 ,  G01F23/00

CPC分类号： G01F23/246 ,  B64D37/00 ,  G01F23/00 ,  G01F23/0007 ,  G01F23/0061 ,  G01F23/241 ,  G01F23/243

摘要： A liquid level detection system for determining a liquid level includes a level sensor configured to be at least partially disposed in a liquid storage vessel and exposed to liquid. A first optoelectronic interface is operatively connected to the level sensor for providing power thereto. A second optoelectronic interface is operatively connected to the first optoelectronic interface. A fiber optic cable optically connects the first optoelectronic interface to the second optoelectronic interface to provide photonic power to the first optoelectronic interface and to transmit data from the first optoelectronic interface to the second optoelectronic interface.

公开(公告)号：US20170160121A1

公开(公告)日：2017-06-08

申请号：US10506254

申请日：2003-03-11

申请人： Hans-Jorg Florenz ,  Clemens Helig ,  Armin Wernet ,  Kaj Penkamp

发明人： Hans-Jorg Florenz ,  Clemens Helig ,  Armin Wernet ,  Kaj Penkamp

IPC分类号： G01F23/00 ,  G01F23/04 ,  G01F25/00 ,  G01F23/24 ,  G01F23/26

CPC分类号： G01F23/0069 ,  G01F23/04 ,  G01F23/243 ,  G01F23/244 ,  G01F23/266 ,  G01F25/0061

摘要： A field device electronics for a conductive, limit-level switch, with a conductive probe and a measuring circuit including a control/evaluation circuit. The measuring circuit, a measuring bridge circuit is present, with at least one coupling capacitor (C2) being present for the DC voltage separation of the probe from the measuring circuit, and with the at least one coupling capacitor (C2) being integrated into the measuring bridge circuit.

公开(公告)号：US08903676B2

公开(公告)日：2014-12-02

申请号：US12803991

申请日：2010-07-12

申请人： Blake Jude Landry ,  James Emory Palmer, III

发明人： Blake Jude Landry ,  James Emory Palmer, III

IPC分类号： G01D1/00 ,  G01F23/00 ,  G01F23/24 ,  G01C13/00

CPC分类号： G01F23/242 ,  G01C13/002 ,  G01F23/243

摘要： Sensors, systems, and methods for measuring fluid perturbation are provided. One system includes a sensor module, a data management system, and a control system. In operation, data representing fluid is generated and recorded on the sensor module. During generating and recording, the sensor module is preferably partially submerged in a conductive fluid. The sensor module transmits the data representing fluid to the data management system in response to receiving data representing a record request from the data management system. Next, the data management system operates on the received data representing fluid to convert the data representing fluid into data representing fluid perturbation. Then the data management system stores the data representing fluid perturbation and transmits the data representing fluid perturbation to the control system. The control system stores the data representing fluid perturbation and displays the data representing fluid perturbation.

摘要翻译： 提供了用于测量流体扰动的传感器，系统和方法。 一个系统包括传感器模块，数据管理系统和控制系统。 在操作中，生成表示流体的数据并记录在传感器模块上。 在生成和记录期间，传感器模块优选地部分地浸没在导电流体中。 响应于接收到来自数据管理系统的记录请求的数据，传感器模块将表示流体的数据发送到数据管理系统。 接下来，数据管理系统对接收到的表示流体的数据进行操作，以将表示流体的数据转换成表示流体扰动的数据。 然后数据管理系统存储表示流体扰动的数据，并将表示流体扰动的数据发送到控制系统。 控制系统存储表示流体扰动的数据，并显示表示流体扰动的数据。

公开(公告)号：US20140015342A1

公开(公告)日：2014-01-16

申请号：US13507617

申请日：2012-07-13

申请人： Christopher J. Milone

发明人： Christopher J. Milone

IPC分类号： H01H35/26

CPC分类号： G01F23/242 ,  G01F23/243 ,  H01H35/18 ,  Y10T307/779

摘要： A liquid level switch is provided having a first elongated substrate having one, two or three or more pairs of elongated electrical conductors thereon, a second elongated substrate having one two or three or more electrically conductive areas thereon, each electrically conductive area being positioned over an associated pair of electrical conductors positioned on the first elongated non-electrically conductive substrate for enabling electrical bridging contact between conductors of the pairs of electrical conductors, and a substrate coupler is provided for coupling the first and second non-electrically conductive substrates together for providing separation of the non-electrically conductive substrates in the absence of hydrostatic pressure thereon, and for causing contact between the first and second non-electrically conductive substrates in the presence of hydrostatic pressure thereon, producing the electrical bridging contact between pairs of conductors on the first non-electrically conductive substrate, in turn producing multiple level output signals.

摘要翻译： 提供了一种液位开关，其具有在其上具有一个，两个或三个或更多对细长电导体的第一细长衬底，其上具有一个二或三个或更多个导电区域的第二细长衬底，每个导电区域位于 位于所述第一细长非导电基底上的相关联的一对电导体，用于使得所述电导体对中的导体之间能够进行电桥接;以及衬底耦合器，用于将所述第一和第二非导电衬底耦合在一起以提供分离 在其上没有静水压力的情况下，在非导电基底上存在静电压力，并且在其上存在静水压力的情况下引起第一和第二非导电基底之间的接触，从而在第一非导电基底上的导体对之间产生电桥接， - 电 导电衬底又产生多电平输出信号。

公开(公告)号：US08438919B2

公开(公告)日：2013-05-14

申请号：US12842308

申请日：2010-07-23

申请人： Richard W. Phillips ,  Chansay Em

发明人： Richard W. Phillips ,  Chansay Em

IPC分类号： G01F23/00

CPC分类号： G01F23/242 ,  G01F23/243 ,  G01F23/247 ,  G01F23/248

摘要： A liquid level sensing system including a housing configured to hold a liquid, a first temperature sensor connected to the housing and configured to output a first signal representing a first temperature measured at the first temperature sensor, a second temperature sensor connected to the housing and configured to output a second signal representing a second temperature measured at the second temperature sensor, and a circuit configured to receive the first and second signals as input and to provide an output signal proportional to the time rate of change of the difference between the first signal and the second signal.

摘要翻译： 液面感测系统，包括构造成保持液体的壳体，连接到壳体并被配置为输出表示在第一温度传感器测量的第一温度的第一信号的第一温度传感器，连接到壳体并配置的第二温度传感器 以输出表示在第二温度传感器测量的第二温度的第二信号，以及电路，被配置为接收第一和第二信号作为输入，并提供与第一信号和第二信号之间的差的时间变化率成正比的输出信号 第二个信号。

公开(公告)号：US08429967B2

公开(公告)日：2013-04-30

申请号：US12988793

申请日：2009-12-09

申请人： Won Kim ,  Dong Gu Kim ,  Chan Joo Lee

发明人： Won Kim ,  Dong Gu Kim ,  Chan Joo Lee

IPC分类号： G01F23/24

CPC分类号： G01F23/242 ,  G01F23/243

摘要： The present invention includes: plural common terminals; plural water level measurement terminals that are arranged at a certain interval along a longitudinal direction; a water level measurement control unit that measures the water level of a measurement subject by letting an electric current flow to the plural common terminals, then reading the state information of an electric current flowing to the plural water level measurement terminals; and an LED unit that reads and displays the water level measurement results through plural LEDs. The water level measurement system according to the invention comprises: the above-mentioned water level display device; a main control module that controls the water level display device to read the water level measurement results from the water level display device and display the water level measurement results in numerical form or on a scale; a power supply module that supplies power to the water level display device under the control of the main control module; and a display module that displays the water level measurement results according to control of the main control module.

摘要翻译： 本发明包括：多个公共终端; 多个水位测量端子沿纵向方向以一定间隔布置; 水位测量控制单元，其通过使电流流向所述多个公共端子来测量测量对象的水位，然后读取流向所述多个水位测量端子的电流的状态信息; 以及通过多个LED读取并显示水位测量结果的LED单元。 根据本发明的水位测量系统包括：上述水位显示装置; 主控制模块，其控制水位显示装置从水位显示装置读取水位测量结果，并以数字形式或水平显示水位测量结果; 电源模块，其在所述主控模块的控制下向所述水位显示装置供电; 以及显示模块，其根据主控制模块的控制显示水位测量结果。

公开(公告)号：US08252188B1

公开(公告)日：2012-08-28

申请号：US12942539

申请日：2010-11-09

申请人： William C. Batten ,  Bruce W. Kyles

发明人： William C. Batten ,  Bruce W. Kyles

IPC分类号： C02F1/40

CPC分类号： B01D17/041 ,  B01D17/0208 ,  G01F23/243

摘要： A separator for separating F.O.G. from an effluent that contains F.O.G. includes a tank, an inlet to the tank for receiving effluent that contains F.O.G., and an outlet to allow grey water to leave the tank. The tank has a size to enable stratification of a layer of F.O.G. present in the tank on water in the tank, and first and second thermocouples are positioned at differing levels in the tank. Conductors couple the thermocouples to sensors, and differing voltages in the thermocouples can be sensed to determine if the thermocouples are surrounded by F.O.G. or water.

摘要翻译： 用于分离F.O.G.的分离器 从含有F.O.G. 包括一个罐，用于接收含有F.O.G.的流出物的罐的入口以及允许灰水离开罐的出口。 该罐具有能够分层一层F.O.G.的尺寸。 存储在罐中的水箱中，第一和第二热电偶位于罐中不同的水平位置。 导体将热电偶耦合到传感器，并且可以感测热电偶中的不同电压以确定热电偶是否被F.O.G.包围。 或水。

公开(公告)号：US20120010844A1

公开(公告)日：2012-01-12

申请号：US12803991

申请日：2010-07-12

申请人： Blake Jude Landry ,  James Emory Palmer, III

发明人： Blake Jude Landry ,  James Emory Palmer, III

IPC分类号： G01F19/00 ,  G01R27/08

CPC分类号： G01F23/242 ,  G01C13/002 ,  G01F23/243

摘要： Sensors, systems, and methods for measuring fluid perturbation are provided. One system includes a sensor module, a data management system, and a control system. In operation, data representing fluid is generated and recorded on the sensor module. During generating and recording, the sensor module is preferably partially submerged in a conductive fluid. The sensor module transmits the data representing fluid to the data management system in response to receiving data representing a record request from the data management system. Next, the data management system operates on the received data representing fluid to convert the data representing fluid into data representing fluid perturbation. Then the data management system stores the data representing fluid perturbation and transmits the data representing fluid perturbation to the control system. The control system stores the data representing fluid perturbation and displays the data representing fluid perturbation.

摘要翻译： 提供了用于测量流体扰动的传感器，系统和方法。 一个系统包括传感器模块，数据管理系统和控制系统。 在操作中，生成表示流体的数据并记录在传感器模块上。 在生成和记录期间，传感器模块优选地部分地浸没在导电流体中。 响应于接收到来自数据管理系统的记录请求的数据，传感器模块将表示流体的数据发送到数据管理系统。 接下来，数据管理系统对接收到的表示流体的数据进行操作，以将表示流体的数据转换成表示流体扰动的数据。 然后数据管理系统存储表示流体扰动的数据，并将表示流体扰动的数据发送到控制系统。 控制系统存储表示流体扰动的数据，并显示表示流体扰动的数据。