-
公开(公告)号：EP1690068A4
公开(公告)日：2007-10-17
申请号：EP04780605
申请日：2004-08-10
申请人： NARTRON CORP
发明人： WASHELESKI JOHN , NEWMAN TODD R
IPC分类号： G01F23/38 , G01F20060101 , G01F23/32 , G01F23/52 , G01F23/54
摘要： A fuel level sensor for sensing and monitoring the level of remaining fluid in a container such as a fuel tank for a motorized vehicle is disclosed. The fuel level sensor incorporates an improved float and pivot arm member attached to a hub that rotates about a pivot base. The conventional resistor card technology, commonly found in automotive applications for translating the position of the float into an electrical signal, is replaced by a more reliable non-contact magnetic flux sensing circuit. The fuel level sensor incorporates a magnetic sensor and magnetic circuit in a commonly known and practiced rotational position sensor configuration for determining the angular position of a hub relative to its pivot base, where the hub is attached to a conventional float-arm member and the base remains stationary relative to the fuel container. The preferred embodiment includes a magnetic flux sensor positioned between two movable magnets. The magnetic flux sensing element is a Hall effect integrated circuit, magnetoresistor, magnetodiode, magnetotransistor, or similar magnetic flux sensing element with associated electronic circuitry having adjustable or programmable features including ratiometry, gain, offset voltage, temperature coefficient, and output signal range limiting. Critical electronic components are hermetically sealed making the fuel level sensor fully submersible in fuel for long term fuel exposure.
-
2.发明公开Einrichtung für die Messung des Füllstandes in einem eine Flüssigkeit aufnehmenden Behälter 审中-公开装置，用于测量在液体接收罐填充水平
公开(公告)号：EP1072872A3
公开(公告)日：2001-02-07
申请号：EP00111322.4
申请日：2000-05-26
申请人： GEIGER TECHNIK GmbH
CPC分类号： G01F23/54 , G01F23/0038 , G01F23/38 , G01F23/546 , G01F23/62
摘要： Die Erfindung richtet sich auf eine Einrichtung für die Messung des Füllstandes in einem, eine Betriebs- oder Verbrauchsflüssigkeit aufnehmenden Behälter mit einem in die Flüssigkeit eintauchenden, den Füllstand im Behälter darstellenden Schwimmer (1), wobei dieser Schwimmer mit einem Magneten (3) direkt oder indirekt verbunden ist und wobei außerhalb der Bewegungsbahn des Schwimmers ein Sensor (8) angeordnet ist, der die Richtungsänderungen der Feldlinien (9) des vom Magneten erzeugten magnetischen Feldes, abhängig von der Stellung und/oder Lage des durch den Schwimmer bewegten Magneten mißt und elektrisch an eine Anzeige weitergibt. Eine solche Einrichtung ist besonders für die kontinuierliche Messung des Flüssigkeitsniveaus und insbesondere auch für die Messung des Füllstandes einer Flüssigkeit geeignet, die leicht brennbar ist oder leicht entzündbare Gase erzeugt.
-
公开(公告)号：EP3521779A1
公开(公告)日：2019-08-07
申请号：EP18154520.3
申请日：2018-01-31
IPC分类号： G01F23/38 , G01F23/46 , G01F23/54 , G01F23/62 , G01F23/72 , H01H36/00 , H01H36/02 , G01D5/165 , G01D5/251 , H01C10/36
摘要： The invention relates to a fuel level sensor (10), with a magnet (12) being moveable along a circle segment shaped path responsive to the fuel level in a tank, a resistance network (14) comprising a plurality of individual electrical contacts (14a, 14b, 14c,...), a plurality of contact springs (16a, 16b, 16c,...) being deflectable under the force of the magnet (12) in a direction towards the resistance network (14) so as to establish an electrical connection with one individual electrical contact (14a, 14b, 14c,...) of the resistance network (14) depending on the position of the magnet (12) along the circle segment shaped path, the fuel level being determined depending on which individual electrical contact (14a, 14b, 14c,...) of the resistance network (14) is in contact with a contact spring (16a, 16b, 16c,...), characterized in that the distal end of each contact spring (16a, 16b, 16c,...) has a u-shaped or v-shaped form.
-
-
公开(公告)号：EP0175372A1
公开(公告)日：1986-03-26
申请号：EP85111883.6
申请日：1985-09-19
发明人： Howeth, James R.
IPC分类号： G01F23/54
摘要： A fluid measurement gauge is principally used to measure the fluid level in large underground storage tanks, such as for storing gasoline at service stations. A housing (12) is positioned vertically in the fluid and includes a leadscrew (30) which is driven by a stepper motor (100). A nut (176) is mounted for longitudinal movement along the leadscrew. A float (160) encircles the housing and includes a magnet (164) at the surface of the fluid level. A magnetic sensor, such as a Hall-effect switch (188) is mounted on the nut and driven in selected steps downward to encounter the magnet mounted in the float. A reference position is marked at the top of the housing and the fluid level is measured downward from the reference position by detecting the magnet by operation of the magnetic sensor. An additional float (166) can be provided to detect the interface between two fluids such as gasoline and water. The second float is further provided with a magnet (168) to be detected by the magnetic sensor. In addition, temperature sensors (150,152,154), such as thermistors, can be mounted near the housing to measure the temperature of the fluid for compensation to standard conditions. An electronic circuit board (112) can be included within the fluid measurement gauge to provide an integral unit for making periodic, unattended fluid measurements.
-
-
公开(公告)号：EP3006906A4
公开(公告)日：2017-01-18
申请号：EP14804604
申请日：2014-05-30
发明人： DEAK JAMES GEZA , TONDRA MARK C
CPC分类号： G01F23/54 , G01F23/38 , G01F23/543
摘要： A liquid level sensor system for remotely monitoring the liquid level in a tank, the system comprising a first fixed portion (1) with a first liquid level response unit, and a second fixed portion (2) with a second liquid level response unit; a guide tube (14) inserted into the tank and attached to the bottom of the first fixed portion (1); the guide tube (14) is provided with a multitude of ports (27), such that the liquid level in the guide tube (14) is flush with the liquid level in the tank; the first liquid level response unit comprises a float (15) floating up and down with the variation of the liquid level in the guide tube (14), a rotating shaft (19) rotating around a relatively fixed axis of rotation (16) in the up and down floating process of the float (15), and a permanent magnet (139); the second fixed portion (2) is attached to the top of the first fixed portion (1); the second liquid level response unit comprises a PCB (104), a magnetoresistive angle sensor chip (103), and a control circuit electrically connected to the magnetoresistive angle sensor chip (103); the magnetoresistive angle sensor chip (103) outputs an analog voltage signal to the control circuit according to the rotation angle of the permanent magnet (139), and the control circuit calculates the height of the liquid level according to the analog voltage signal.
-
公开(公告)号：EP2260275A1
公开(公告)日：2010-12-15
申请号：EP08763763.3
申请日：2008-03-05
申请人： Cavagna Group S.p.a.
发明人： CAVAGNA, Davide
CPC分类号： G01F23/38 , F16K37/00 , F16K37/0058 , F17C13/021 , F17C2201/058 , F17C2221/035 , F17C2223/0153 , F17C2223/033 , F17C2250/036 , F17C2250/0413 , F17C2250/077 , F17C2260/024 , F17C2265/04 , F17C2270/01 , G01F23/54 , G01F23/62
摘要： A device (10) for indicating the reserve state of containers, in particular portable containers adapted to contain liquefied fuel gases, comprises a housing (11) provided with fastening means (12) for the detachable connection of the device (10) to the container, a circuit (21) in this housing (11), which circuit (21) includes at least one indicator (24) adapted to transmit a visual and/or acoustic signal when the circuit (21) is actuated, a switch (19) adapted to actuate the circuit (21) as a function of an alert signal from a level indicator (5, 7, 8) belonging to the container, actuator means (16, 20) adapted to actuate the switch (19) by interaction with the level indicator (5, 7, 8), in which the actuator means comprise a primary magnet (16) positioned such that it may be displaced in the housing (11) into a position interacting with a corresponding magnet (8) of the level indicator (5, 7, 8) and a recall (20) which bears a secondary magnet (18) connected to the primary magnet (16) in order to actuate the switch (19) as a result of the displacement of the primary magnet (16).
摘要翻译： 用于指示容器的储存状态的装置（10），特别是适于容纳液化燃料气体的便携式容器，包括设置有紧固装置（12）的壳体（11），用于将装置（10）可拆卸地连接到容器 ，所述电路（21）包括至少一个指示器（24），所述至少一个指示器（24）适于在所述电路（21）被致动时传输视觉和/或声学信号;开关（19）， 适于根据属于所述容器的液位指示器（5,7,8）作为警报信号的功能致动所述电路（21），所述致动器装置（16,20）适于通过与所述容器的相互作用致动所述开关（19） 液位指示器（5,7,8），其中致动器装置包括主磁体（16），其定位成使得其可以在壳体（11）中移位到与液位指示器的相应磁体（8）相互作用的位置 （5,7,8）和召回（20），其具有连接到所述主磁体（16）的次级磁体（18） ），以便由于主磁体（16）的位移而致动开关（19）。
-
9.发明公开Einrichtung für die Messung des Füllstandes in einem eine Flüssigkeit aufnehmenden Behälter 审中-公开装置，用于测量在液体接收罐填充水平
公开(公告)号：EP1072872A2
公开(公告)日：2001-01-31
申请号：EP00111322.4
申请日：2000-05-26
申请人： GEIGER TECHNIK GmbH
CPC分类号： G01F23/54 , G01F23/0038 , G01F23/38 , G01F23/546 , G01F23/62
摘要： Die Erfindung richtet sich auf eine Einrichtung für die Messung des Füllstandes in einem, eine Betriebs- oder Verbrauchsflüssigkeit aufnehmenden Behälter mit einem in die Flüssigkeit eintauchenden, den Füllstand im Behälter darstellenden Schwimmer (1), wobei dieser Schwimmer mit einem Magneten (3) direkt oder indirekt verbunden ist und wobei außerhalb der Bewegungsbahn des Schwimmers ein Sensor (8) angeordnet ist, der die Richtungsänderungen der Feldlinien (9) des vom Magneten erzeugten magnetischen Feldes, abhängig von der Stellung und/oder Lage des durch den Schwimmer bewegten Magneten mißt und elektrisch an eine Anzeige weitergibt. Eine solche Einrichtung ist besonders für die kontinuierliche Messung des Flüssigkeitsniveaus und insbesondere auch für die Messung des Füllstandes einer Flüssigkeit geeignet, die leicht brennbar ist oder leicht entzündbare Gase erzeugt.
摘要翻译： 该装置具有浸入在液体（4），用于测量所述液体的液位的浮子（1），磁铁（3）连接到该浮子和（8）设置在所述浮子的运动范围以外的传感器。 所述传感器测量在由磁体根据由浮子移动的磁体的位置和/或方向产生的磁力线的方向上的变化和电并将它们传递到显示器。
-
公开(公告)号：EP3006906B1
公开(公告)日：2021-07-21
申请号：EP14804604.8
申请日：2014-05-30
发明人： DEAK, James Geza , TONDRA, Mark C
-
-
-
-
-
-
-
-
-
搜索结果
14 条记录 (耗时 0.009 秒)
