公开(公告)号：US20030029223A1

公开(公告)日：2003-02-13

申请号：US10216423

申请日：2002-08-09

发明人： J. Lawrence Taylor III ,  Paul R. Bennett JR.

IPC分类号： G01S007/40

CPC分类号： G01F23/74 ,  G01F25/0069

摘要： A system and a method of automatically and periodically checking the integrity of a mechanical level sensor system for a storage tank are provided. These mechanical sensors employ a magnetic mechanism to lift the displacers or floats to the full travel of the level sensor in order to simulate a level alarm condition. A timer and activation module periodically energizes the magnetic lift mechanism. An array of indicators and logic provides an indication to the operator of normal operation, a satisfactory test, an unsatisfactory test, and a genuine alarm condition.

摘要翻译： 提供了一种自动和周期性地检查储罐的机械液位传感器系统的完整性的系统和方法。 这些机械传感器使用磁性机构来将置换器或浮子提升到液位传感器的全部行程，以模拟液位报警状态。 定时器和激活模块周期性地给磁力升降机构通电。 一系列指示器和逻辑指示操作者正常操作，令人满意的测试，不满意的测试和真实的报警条件。

公开(公告)号：US4402209A

公开(公告)日：1983-09-06

申请号：US272735

申请日：1981-06-11

申请人： Italo Di Domenico

发明人： Italo Di Domenico

IPC分类号： G01F9/00 ,  G01F23/32 ,  G01F23/34 ,  G01F25/00 ,  G01F23/08

CPC分类号： G01F23/34 ,  G01F25/0069

摘要： A liquid level gauge calibration means which utilizes slip clutch action between the gauge pointer shaft and the float rod. In setting the gauge range, either of said elements may be held stationary at a given point while the other element is moved to coordinate with the given point. Upon release of the element being held, the slip clutch is effective to maintain the established relationship between the two elements. A tool is used to move the slip clutch as needed for desired relative setting of the two elements.

摘要翻译： 液位计校准装置，其在量规指针轴和浮子杆之间使用滑动离合器作用。 在设定量程范围时，所述元件中的任一个可以在给定点保持静止，而另一元件被移动以与给定点协调。 在释放被保持的元件时，滑动离合器有效地保持两个元件之间建立的关系。 根据需要使用一个工具来移动滑动离合器，用于两个元件的相对设定。

公开(公告)号：US3781858A

公开(公告)日：1973-12-25

申请号：US3781858D

申请日：1971-11-26

申请人： HARNESSED EN INC

发明人： LEWIS J

IPC分类号： G01F23/70 ,  G01F25/00 ,  G08B21/00

CPC分类号： G01F23/70 ,  G01F25/0069

摘要： A fluid level indicator wherein a float in a float chamber is responsive to the level of fluid in a vessel with which it communicates. The float carries a magnet which actuates a reed switch when the level of fluid in the float chamber reaches a predetermined level. A monitor connected to the reed switch indicates when the switch is actuated. A plunger disposed in the indicator when depressed moves the float, i.e., magnet, to actuate the reed switch regardless of the level of fluid in the float chamber whereby the monitoring system may be validated.

摘要翻译： 液位指示器，其中浮子室中的浮子响应于与其连通的容器中的流体水平。 当浮子室中的液体水平达到预定水平时，浮子带有一个磁体，该磁体致动簧片开关。 连接到舌簧开关的显示器指示开关何时启动。 当压下时，设置在指示器中的柱塞使浮子即磁体移动，以驱动簧片开关，而与浮动室中的流体水平无关，从而监测系统可被验证。

公开(公告)号：US3710613A

公开(公告)日：1973-01-16

申请号：US3710613D

申请日：1971-04-26

申请人： ROLAND TRIST CONTROLS LTD

发明人： INNES R ,  MORRISON E

IPC分类号： F22B37/42 ,  F22B37/78 ,  G01F23/30 ,  G01F23/56 ,  G01F25/00 ,  G08B29/00

CPC分类号： F22B37/425 ,  F22B37/78 ,  G01F23/30 ,  G01F23/56 ,  G01F25/0069 ,  Y10S73/05

摘要： The invention is concerned with a float operated signalling device in which a magnet follows the movement of a float in a closed liquid container, the magnet reciprocating in a non magnetic tube through which it operates signal controls. An auxiliary liquid supply is connected to the tube for providing a temporary hydraulic pressure differential across the piston or a part attached to the piston so that the float is dunked below the liquid level and the magnet operates the signal controls for test purposes.

摘要翻译： 本发明涉及一种浮动操作的信号装置，其中磁体遵循在闭合的液体容器中的浮子的运动，磁体在非磁性管中往复运动，通过该磁体操作信号控制。 辅助液体供应器连接到管，用于在活塞附近提供临时液压差或连接到活塞的部分，使得浮子被低于液面并且磁体操作信号控制以用于测试目的。

公开(公告)号：US3710612A

公开(公告)日：1973-01-16

申请号：US3710612D

申请日：1971-04-26

申请人： TRIST CONTROLS LTD RONALD

发明人： INNES R ,  MORRISON E

IPC分类号： F22B37/42 ,  F22B37/78 ,  G01F23/30 ,  G01F23/56 ,  G01F25/00

CPC分类号： F22B37/78 ,  F17C2250/0413 ,  F22B37/425 ,  G01F23/30 ,  G01F23/56 ,  G01F25/0069 ,  Y10S73/05

摘要： The invention is concerned with a float operated signalling device of the kind in which a magnet follows the movement of a float in a liquid container and operates signal controls through a non magnetic wall. An open topped pan having a drain opening is attached to the magnet/float assembly and an auxiliary liquid supply is provided for depositing liquid into the pan at a rate greater than that at which it can drain out of the pan. When the pan contains liquid the float is dunked below the liquid in the container so that the magnet operates the signal controls for test purposes.

摘要翻译： 本发明涉及一种浮动操作的信号装置，其中磁体遵循液体容器中的浮子的运动并且通过非磁性壁操作信号控制。 具有排放开口的敞开的顶盘连接到磁体/浮子组件，并且提供辅助液体供应源，用于以比其能排出盘的液体更大的速率将液体沉积到锅中。 当锅中含有液体时，浮子被压在容器中的液体下方，以便磁铁操作信号控制以进行测试。

公开(公告)号：US20170291425A1

公开(公告)日：2017-10-12

申请号：US15407364

申请日：2017-01-17

申请人： TOSHIBA TEC KABUSHIKI KAISHA

发明人： Tetsuya Sato

IPC分类号： B41J2/175 ,  B41J2/21

CPC分类号： B41J2/17566 ,  B41J29/393 ,  B41J2002/17576 ,  G01F25/0069

摘要： In accordance with an embodiment, an ink supply device comprises an ink storage section, a float and a floating position detection device. The ink storage section is connected with an inkjet head, and stores ink to be supplied to the inkjet head. The float is arranged in the ink storage section in a floatable manner in response to a height of a liquid surface of the ink. The floating position detection device comprises a detection target arranged on the float, and a target detection section which is arranged in the ink storage section and detects that the detection target approaches. The target detection section is arranged on a wall substantially orthogonal to an axial direction of a rotating shaft of the ink storage section. An inkjet recording device of the embodiment comprises an inkjet head configured to jet ink to an image receiving medium, and the ink supply device.

公开(公告)号：US09618381B1

公开(公告)日：2017-04-11

申请号：US15079362

申请日：2016-03-24

申请人： Ford Global Technologies, LLC

发明人： Aed M. Dudar

IPC分类号： G01F25/00 ,  G01F23/30 ,  F02M37/00 ,  F02M37/04 ,  F02M25/08 ,  B60K35/00 ,  B60K15/03

CPC分类号： G01F25/0069 ,  B60K15/03519 ,  B60K35/00 ,  B60K2015/03217 ,  B60K2015/03223 ,  B60K2015/03514 ,  F02M25/0836 ,  F02M25/0854 ,  F02M25/0872 ,  F02M37/0082 ,  F02M37/04 ,  G01F23/30

摘要： A method for a fuel system comprises receiving a first indication of inconsistency in a fuel level indicator output during a fuel consumption cycle, receiving a second indication of inconsistency in a fuel level indicator output during a refueling event, and indicating electrical degradation of the fuel level indicator responsive to the first and second indications of inconsistency indicating coincident ranges of inconsistency for the fuel level indicator output. By gauging the consistency of a fuel level indicator output during both upward and downward travel, electrical degradation may be distinguished from mechanical degradation. In this way, a range of inconsistency may be determined, and a reported fuel level adjusted while the fuel level indicator output is within the range of inconsistency.

公开(公告)号：US08049607B2

公开(公告)日：2011-11-01

申请号：US12361063

申请日：2009-01-28

申请人： Yasutaka Usukura ,  Masahiko Tsuchiya

发明人： Yasutaka Usukura ,  Masahiko Tsuchiya

IPC分类号： B60Q1/00

CPC分类号： G01F23/74 ,  F01M11/12 ,  G01F25/0061 ,  G01F25/0069 ,  H01H36/02

摘要： To determine a failure of a float switch for detecting whether or not the oil level is less than or equal to a predetermined oil level. A predetermined oil level OLth is set between a normal oil level and a minimum oil level in view of the fact that when the oil level in an oil pan is normal, the oil level is decreased from the normal oil level to the minimum oil level during a predetermined time period just after starting an engine. When a float switch is not changed from an OFF position to an ON position during the predetermined time period after starting the engine, it is determined that the float switch suffers a failure or the oil level is excessive.

摘要翻译： 确定用于检测油位是否小于或等于预定油位的浮子开关的故障。 考虑到当油底壳中的油位正常时，在正常油位和最低油位之间设定预定油位OL，在从油正常的油位下降到最低油位 在启动发动机之后的预定时间段。 在起动发动机之后的预定时间段内，当浮球开关没有从OFF位置改变到ON位置时，确定浮子开关发生故障或油位过大。

公开(公告)号：US5705733A

公开(公告)日：1998-01-06

申请号：US589966

申请日：1996-01-23

申请人： Louis J. Jannotta

发明人： Louis J. Jannotta

IPC分类号： G01F23/32 ,  G01F25/00

CPC分类号： G01F23/32 ,  G01F25/0061 ,  G01F25/0069 ,  Y10T74/18024

摘要： Apparatus for monitoring the height of the liquid in a liquid-containing tank equipped with a height gage including an adjusting disc coupled to the gage shaft, an increment wheel coupled to the adjusting disc and being rotatable in response to rotation of the gage shaft, and a coupling member secured to the increment wheel and the shaft of an encoder assembly. The coupling member is effective to transmit liquid height information from the increment wheel to the encoder assembly. Methods for calibrating such apparatus are provided.

摘要翻译： 一种用于监测液体容纳箱中的液体的高度的装置，其装备有包括联接到量规轴的调节盘的高度计，连接到调节盘并可响应于量规轴的旋转而旋转的增量轮;以及 固定到增量轮和编码器组件的轴的联接构件。 联接构件有效地将液体高度信息从增量轮传递到编码器组件。 提供校准这种装置的方法。

公开(公告)号：US5636548A

公开(公告)日：1997-06-10

申请号：US245142

申请日：1994-05-16

申请人： William D. Dunn ,  Lonnie G. Traylor

发明人： William D. Dunn ,  Lonnie G. Traylor

IPC分类号： G01F23/72 ,  G01F25/00 ,  G01F23/68

CPC分类号： G01F23/72 ,  G01F25/0069

摘要： A method and apparatus for measuring a liquid level by a float carrying one or more magnets and movably positioned adjacent spaced analog output voltage Hall-effect sensors. The apparatus is calibrated by moving the float relative to the sensors and measuring the voltage outputs of the sensors relative to the position of the float, and storing the measured values. After calibrating, the voltage outputs of any sensors activated by the presence of the float are measured and compared to the stored values to determine the liquid level. Preferably, the voltage output of at least two sensors are measured while the float is at one position for greater accuracy.

摘要翻译： 一种用于通过浮子测量液位的方法和装置，所述浮子承载一个或多个磁体并且可移动地定位在邻近间隔开的模拟输出电压霍尔效应传感器。 通过相对于传感器移动浮子并相对于浮子的位置测量传感器的电压输出并存储测量值来校准装置。 校准后，测量由浮动体存在而激活的任何传感器的电压输出，并将其与存储值进行比较以确定液位。 优选地，当浮子位于一个位置以更高精度时，测量至少两个传感器的电压输出。