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公开(公告)号：US20130132004A1
公开(公告)日：2013-05-23
申请号：US13301258
申请日：2011-11-21
CPC分类号： G01F23/2962 , G01F23/0061 , G01F23/30 , G01F23/303 , G01F23/68 , G01F25/0061 , G01F25/0069
摘要： A monitoring system includes a transducer coupled to an outer surface of a tank wall. The transducer is oriented to transmit a first signal through the tank wall. An intermediate reflective surface is positioned within the fuel storage tank. The intermediate reflective surface is oriented to produce a first reflected signal associated with the first signal. A controller is programmed to calculate a fuel level based on at least the first signal and the first reflected signal.
摘要翻译： 监测系统包括耦合到罐壁的外表面的换能器。 传感器被定向以通过罐壁传输第一信号。 中间反射表面位于燃料储罐内。 中间反射表面被定向以产生与第一信号相关联的第一反射信号。 控制器被编程为基于至少第一信号和第一反射信号来计算燃料水平。
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公开(公告)号：US07631556B2
公开(公告)日：2009-12-15
申请号：US11496971
申请日：2006-08-01
IPC分类号： G01F23/00
CPC分类号： G01F23/0084 , B60K15/061 , G01F23/36 , G01F25/0061 , G01F25/0069
摘要： A fuel level monitoring system for a fuel system having a primary fuel tank and a secondary fuel tank includes a fuel level sensor that is disposed within the secondary fuel tank and that generates a first signal. An empty switch is disposed within the secondary fuel tank and generates a second signal. A control module determines a condition of one of the fuel level sensor and the empty switch based on the first signal, the second signal and a plurality of signal thresholds.
摘要翻译： 一种用于具有一次燃料箱和二次燃料箱的燃料系统的燃料液位监视系统，包括设置在二次燃料箱内并产生第一信号的燃料液位传感器。 一个空的开关设置在二次燃料箱内并产生一个第二信号。 控制模块基于第一信号，第二信号和多个信号阈值来确定燃料液位传感器和空开关之一的状态。
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公开(公告)号：US20090195374A1
公开(公告)日：2009-08-06
申请号：US12361063
申请日：2009-01-28
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的油位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。
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公开(公告)号：US20080028851A1
公开(公告)日：2008-02-07
申请号：US11496971
申请日：2006-08-01
IPC分类号： G01F23/00
CPC分类号： G01F23/0084 , B60K15/061 , G01F23/36 , G01F25/0061 , G01F25/0069
摘要： A fuel level monitoring system for a fuel system having a primary fuel tank and a secondary fuel tank includes a fuel level sensor that is disposed within the secondary fuel tank and that generates a first signal. An empty switch is disposed within the secondary fuel tank and generates a second signal. A control module determines a condition of one of the fuel level sensor and the empty switch based on the first signal, the second signal and a plurality of signal thresholds.
摘要翻译： 一种用于具有一次燃料箱和二次燃料箱的燃料系统的燃料液位监视系统，包括设置在二次燃料箱内并产生第一信号的燃料液位传感器。 一个空的开关设置在二次燃料箱内并产生一个第二信号。 控制模块基于第一信号，第二信号和多个信号阈值来确定燃料液位传感器和空开关之一的状态。
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公开(公告)号：US20070245824A1
公开(公告)日：2007-10-25
申请号：US11736878
申请日：2007-04-18
申请人： Peter C. Blokhuis
发明人： Peter C. Blokhuis
IPC分类号： G01F23/00
CPC分类号： G01F25/0069 , G01F1/22 , G01F23/74
摘要： A liquid level sensing device that gives an audible and visual alarm when a low or high liquid level condition in a chemical container is detected. A float switch located at the bottom end of the device closes an electrical circuit, which starts an audio alarm and flashing light. The unit includes an integral liquid feeding tube for dispensing liquid to a process, which optionally incorporates a flow-indicator.
摘要翻译： 液面检测装置，当检测到在化学容器中的低或高液位状况时，发出声音和视觉警报。 位于设备底端的浮动开关闭合一个电路，开始一个音频报警和闪烁的光。 该单元包括用于将液体分配到过程的整体液体进料管，其可选地并入流量指示器。
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公开(公告)号：US5247833A
公开(公告)日：1993-09-28
申请号：US924749
申请日：1992-08-04
申请人： Toshihisa Sasaya
发明人： Toshihisa Sasaya
CPC分类号： G01F23/14 , G01F23/74 , G01F25/0069 , H01H36/02
摘要： An apparatus for measuring a water level of a dam by combining a pressure type water level gauge measuring the water level by detecting water pressure at a bottom of the dam, with a plurality of float type water level switches arranged along the depth of the dam and provided at an interval less than a tolerance allowed to the gauge. Obtaining a water level difference between the water level measured by the gauge and the water level at the switch respectively, the gauge water level is corrected to a water level obtained by subtracting the difference at one of the switches from the gauge water level, when a water surface of the dam is located between the one of the switches and the gauge or an adjacent switch. The abnormality of the gauge is found by detecting whether the difference exceeds a water level tolerance allowed to the gauge.
摘要翻译： 一种用于通过组合压力式水位计来测量水位的装置，通过检测坝底部的水压，以及沿坝的深度布置的多个浮式水位开关，以及 以小于容许量规的公差的间隔提供。 通过分别获得由量规测量的水位与水位之间的水位差，将表水位校正为通过从表水位上减去其中一个开关的差而获得的水位，当a 水坝的水面位于一个开关和量规之间或相邻的开关之间。 通过检测差异是否超过测量仪允许的水位公差，发现量规的异常。
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公开(公告)号：US4875370A
公开(公告)日：1989-10-24
申请号：US307652
申请日：1989-02-07
申请人： Martin Spitzer
发明人： Martin Spitzer
CPC分类号： G01F25/0069 , G01F23/0038 , Y10S73/05 , Y10T307/779
摘要： The liquid level in a tank is determined by measuring the current supplied to an elctromagnet from which a rod having a specific gravity greater than that of the liquid is suspended in the liquid.
摘要翻译： 通过测量提供给电容器的电流来确定罐中的液位，其中具有大于液体比重的杆的杆悬在液体中。
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公开(公告)号：US20180017430A1
公开(公告)日：2018-01-18
申请号：US15208555
申请日：2016-07-12
CPC分类号： G01F25/0061 , B60K15/03519 , B60K2015/03019 , B60K2015/0319 , B60K2015/03197 , B60K2015/03203 , B60K2015/03217 , B60K2015/03514 , G01F9/00 , G01F25/0069
摘要： Methods and systems are provided for estimating fuel levels in a fuel tank. In one example, a method may comprise adjusting estimates of a fuel level in a fuel tank based on an amount of fuel added to the fuel tank during a refueling event. The amount of fuel added to the fuel tank may be provided by a vehicle operator via one or more of a dashboard user interface, a wireless device user interface, and a digital camera included within a user device.
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公开(公告)号：US09821566B2
公开(公告)日：2017-11-21
申请号：US15407364
申请日：2017-01-17
发明人： Tetsuya Sato
IPC分类号： B41J29/393 , B41J2/175 , G01F25/00
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.
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公开(公告)号：US08959891B2
公开(公告)日：2015-02-24
申请号：US13699495
申请日：2011-05-16
CPC分类号： F01N3/18 , F01N3/208 , F01N2550/05 , F01N2610/02 , F01N2610/1406 , F01N2610/142 , F01N2900/0416 , F01N2900/0418 , F01N2900/1814 , G01F23/72 , G01F23/74 , G01F23/76 , G01F25/0069 , Y02T10/24
摘要： A selective catalytic reduction (SCR) system that can detect whether or not a float is stuck even where a water level sensor that detects a liquid level in a stepwise manner is used, including: an urea injection quantity integrating unit that integrates an injected quantity of urea to calculate an urea injection quantity integrated value; an integrated value resetting unit that, if a detected value from detection means changes, resets the urea injection quantity integrated value; and an abnormality determination unit that, if the urea injection quantity integrated value exceeds a predetermined threshold value for determination, determines a level sensor as having an abnormality.
摘要翻译： 一种选择性催化还原（SCR）系统，其可以检测即使在以逐步方式检测液位的水位传感器的情况下，浮子是否被卡住，包括：尿素喷射量积分单元，其将注入量 尿素计算尿素喷射量积分值; 积分值复位单元，如果来自检测单元的检测值变化，则复位尿素喷射量积分值; 以及异常确定单元，如果尿素喷射量积分值超过用于确定的预定阈值，则确定水平传感器具有异常。
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