公开(公告)号：EP4214479B1

公开(公告)日：2024-10-02

申请号：EP21770179.6

申请日：2021-08-30

IPC分类号： G01F23/00 ,  G01F23/26 ,  G01N24/00 ,  G01R33/12 ,  G01R33/16 ,  G01R33/26 ,  G01R33/32 ,  G01F23/284 ,  G01F23/292 ,  G01R33/032

CPC分类号： G01F23/2924 ,  G01F23/2927 ,  G01R33/032 ,  G01F23/284 ,  G01F23/2845 ,  G01F23/0007 ,  G01F23/261 ,  G01R33/26 ,  G01R33/1223 ,  G01R33/16 ,  G01N24/006 ,  G01R33/323

公开(公告)号：EP1289404B1

公开(公告)日：2009-08-05

申请号：EP01934224.5

申请日：2001-05-21

申请人： ELTEK S.p.A.

发明人： PERUCCA, Giovanni ,  NEBBIA, Fabio ,  CERRUTI, Daniele ,  BELFIORE, Stefano ,  GADINI, Costanzo

IPC分类号： A47L15/44 ,  G01F23/292

CPC分类号： G01F23/2924 ,  A47L15/4409 ,  Y10S116/05

摘要： A washing agent dispenser is described, for a household washing machine, namely a dishwasher, said dispenser (10) comprising a tank (12) for containing a liquid washing agent, to which a device (DS) is associated for the visual control of the level of said liquid washing agent. According to the invention, said control device (DS) comprises a plurality of elements of a substantially transparent material (17), which are inserted in respective passages extending between said tank (12) and the outside of the body (11) of the dispenser (10). The parts (17D) of each one of said transparent elements (17) which are visible outside said body (11) form the steps of a scale indicating the level of said liquid washing agent contained in the tank (12).

公开(公告)号：EP1154246A2

公开(公告)日：2001-11-14

申请号：EP01110683.8

申请日：2001-05-02

申请人： BSH Bosch und Siemens Hausgeräte GmbH

发明人： Zinsberger, Alfons ,  Eggersdorfer, Hermann ,  Beutlrock, Maximilian ,  Steiner, Gerhard

IPC分类号： G01F23/292 ,  G01F23/68

CPC分类号： G01F23/02 ,  G01F23/2924 ,  G01F23/64 ,  G01F23/686

摘要： Füllstandsanzeige für ein Medium, insbesondere Flüssigkeit mit einem lichtdurchlässigen Anzeigemittel, wobei das Anzeigemittel in der Weise beschaffen ist, daß das Anzeigemittel in Abhängigkeit davon, welches Medium an das Anzeigemittel angrenzt unterschiedliche optische Eigenschaften aufweist, so daß im Grenzbereich zwischen zwei Medien ein optischer Effekt auftritt, der den Füllstand eines Mediums anzeigt. Zur Unterstützung des optischen Effektes ist eine Lichtquelle vorgesehen, die optisch an das Anzeigemittel angekoppelt ist.

摘要翻译： 液位指示器，特别是用于液体介质的液位指示器包括设置有附接光源（2）的透明指示元件（3）。

公开(公告)号：EP1445589A4

公开(公告)日：2005-10-05

申请号：EP02738663

申请日：2002-06-12

申请人： OMATOI NAOYUKI

发明人： OMATOI NAOYUKI

IPC分类号： G01F23/292 ,  G01F23/28

CPC分类号： G01F23/2922 ,  G01F23/2924 ,  G01F23/2925 ,  G01F23/2927

摘要： A liquid level detecting device which can be used for various detection objects and application environments regardless of detection objects, emits light to a liquid level detecting portion efficiently, can detect sensitively variations in quantity of light by a light receiving means, and is excellent in durability, easy to produce and practically applicable, and which comprises a shielding means (14) for preventing light from a light emitting means (12) from directly being applied to a light receiving means (13), and a light scattering means (16) for scattering light from the light emitting means to radiate part of the scattered light to the outside by a liquid level detecting portion above a light radiating means (light transmitting member) (11) and to receive non−radiated and reflected portion of the scattered light by the light receiving means to thereby detect a change in quantity of received light. Accordingly, when liquid (17) is present outside, quantity of light reflected at the interface between the liquid and the light radiating means and returning to the inside of the light radiating means decreases and therefore quantity of received light at the light receiving means decreases also, whereby it is possible to detect a liquid level by measuring a change in quantity of received light.

公开(公告)号：EP1445589A1

公开(公告)日：2004-08-11

申请号：EP02738663.0

申请日：2002-06-12

申请人： Omatoi, Naoyuki

发明人： Omatoi, Naoyuki

IPC分类号： G01F23/28

CPC分类号： G01F23/2922 ,  G01F23/2924 ,  G01F23/2925 ,  G01F23/2927

摘要： The present invention aims at attaining a liquid surface level detecting apparatus, which can be used in various detection targets and usage environments without selecting a detection target, can efficiently irradiate a light to a liquid surface level detecting unit and detect a variation in a light reception amount of a light receiving means at a high sensibility, and can be excellent in durability, easy to manufacture, and be actually used. By placing a light shielding means 14 so as not to directly irradiate the light from a light emitting means 12 to a light receiving means 13, the light from the light emitting means is scattered by an optically scattering means 16, and a part of that scattering light is radiated to an outside by the liquid surface level detecting unit on a light radiating means (an optically transmitting member) 11. On the other hand, the scattering light, which is reflected without being radiated, is received by the light receiving means, and the change in that light reception amount is detected. Consequently, if a liquid 17 exists in the outside, a light amount, which is reflected by a boundary between the liquid and the light radiating means and returned to an inside of the light radiating means, is reduced, and the light reception amount in the light receiving means is also reduced. Thus, by measuring the change in the light reception amount, it is possible to detect a liquid surface level of the liquid.

摘要翻译： 本发明的目的在于获得能够在各种检测目标和使用环境中使用的液面检测装置，而不选择检测目标，可以有效地将光照射到液面检测单元并检测光接收的变化 光接收装置的高灵敏度的量，并且可以具有优异的耐久性，易于制造和实际使用。 通过设置遮光装置14以便不将来自发光装置12的光直接照射到光接收装置13，来自发光装置的光被光学散射装置16散射，并且其中的一部分散射 光通过液体表面电平检测单元在光辐射装置（光学传递构件）11上被辐射到外部。另一方面，被辐射反射的散射光被光接收装置接收， 并检测该光接收量的变化。 因此，如果液体17存在于外部，则由液体和光辐射装置之间的边界反射并返回到光辐射装置的内部的光量减少，并且光接收量 光接收装置也减少了。 因此，通过测量光接收量的变化，可以检测液体的液面。

公开(公告)号：EP0421770A1

公开(公告)日：1991-04-10

申请号：EP90310843.9

申请日：1990-10-04

申请人： IMO INDUSTRIES INC.

发明人： Nemeth, Frank A.

IPC分类号： G01F23/28

CPC分类号： G01F23/2922 ,  G01F23/2924 ,  G01F23/2925 ,  G01F23/2927 ,  G02B6/3624 ,  Y10S250/903

摘要： Plural sensor prisms and associated optical-­fiber circuits are arrayed as a single vertical stem by which the individual prisms serve for response to each of a plurality of different liquid levels. Each prism is formed of light-transmitting plastic material which can be injection-molded to precision dimensions. The body configuration is such as to adapt to arrayed interconnection with tubular members, also of plastic, and bonded at telescoping fit of each prism to the tubular member or members to which it is connected. The prism configuration relied upon for sensed response to the presence of immersing liquid (as compared to air) is a solid region having an exterior profile which includes a downwardly convergent conical surface portion at least at spaced locales which are at equal but opposite offset from the cylindrical body axis, wherein the geo­metric apex angle of downward convergence is 90 degrees. As long as a given prism is exposed to air, a large amount of light is transmitted (by reflection within the prism) from a transmission optical fiber to a receiving optical fiber. But when immersed in a liquid, a portion of the light from the transmitting fiber is refracted into the liquid, resulting in a clearly detectable decrease in the amount of light coupled to the receiving fiber.

摘要翻译： 多个传感器棱镜和相关联的光纤电路被排列成单个垂直杆，通过该垂直杆，各个棱镜用于响应于多个不同液位中的每一个。 每个棱镜由透光塑料材料形成，可以注塑成型以达到精密尺寸。 主体结构适于与管状构件（也是塑料）的排列互连，并且将每个棱镜的伸缩配合结合到与其连接的管状构件。 依赖于对于浸入液体的存在（与空气相比）的感测响应的棱镜结构是具有外部轮廓的固体区域，该外部轮廓包括向下收敛的锥形表面部分，至少间隔开的区域，其间距离 圆柱体轴线，其中向下收敛的几何顶角为90度。 只要给定的棱镜暴露在空气中，则大量的光从透射光纤传输到棱镜（由棱镜内的反射）到接收光纤。 但是当浸没在液体中时，来自传输光纤的光的一部分被折射到液体中，导致耦合到接收光纤的光的清楚可见的降低。

公开(公告)号：EP0065798A1

公开(公告)日：1982-12-01

申请号：EP82200545.0

申请日：1982-05-06

申请人： Smeets, Andreas Leonie Maria Theodoor, Ir.

发明人： Smeets, Andreas Leonie Maria Theodoor, Ir.

IPC分类号： G01F23/28

CPC分类号： G01F23/2924

摘要： 0 The invention relates to a fuel tank particularly for use in . motor-cars comprising a device for assessing the degree of filling of the tank with liquid fuel said device comprising a rod of a material conducting radiation energy arranged at an imaginary level of liquid fuel in a given position of the tank, one end of said rod being accessible to radiation energy externally of the tank and at least part of said rod, in dependence upon the actual level of the liquid fuel, directing back to said one end along said part a portion of the radiation energy directed to said one end, whereby the fuel tank is a tank for liquid gas, particularly liquid petroleum gas for cars.

摘要翻译： 本发明涉及燃料箱尤其用于电动汽车使用的装置，包括用于assesing与液体燃料罐的填充度所述设备包括导电在在液体燃料的假想水平排列的辐射能量的材料制成的杆 鉴于槽的位置时，所述杆的一端被辐射能量从外部罐和所述杆的至少一部分接近，在在所述液体燃料的实际水平的依赖，沿所述部分的一部分的一个端引导回所述 的指向所述一个端部的辐射能量，由此，燃料箱为液体气体，汽车特别是液化石油气的罐。

公开(公告)号：EP2127746A1

公开(公告)日：2009-12-02

申请号：EP07850803.3

申请日：2007-12-18

申请人： Ajinomoto Co., Inc.

发明人： TOKITA, Yuji ,  YAMAMOTO, Ken ,  MIKI, Takeshi ,  SHIRAISHI, Atsuo

IPC分类号： B01J47/14 ,  B01J47/02 ,  G01F23/28

CPC分类号： G01F23/2921 ,  B01J47/14 ,  G01F23/2924

摘要： A liquid surface level control method for an ion-exchange resin tower according to the present invention comprises steps of determining an operation signal (S18, S28, S38) of a discharge device of liquid (6) to be discharged from the ion-exchange resin tower (2a, 2b, 2c), based on a liquid surface level PID operation signal obtained by calculating a liquid surface level signal (S12) in a PID way and a supply flow rate signal (S10, S18, S28) supplied to the ion-exchange resin tower (2a, 2b, 2c), and moving the liquid surface level (6a) close to the target liquid surface level. Preferably, the interface level (4a) is detected by means of an interface level sensor (52), and the target liquid surface level is increased or decreased according to the increase/decrease of the interface level (4a). The interface level sensor (52) includes a plurality of light emitting parts and a plurality of light receiving parts which are opposite to each other in a one-to-one relation.

摘要翻译： 在离子交换树脂塔的本发明的液体表面水平控制方法雅丁包括确定性采矿的步骤上操作信号（6），以从离子交换树脂中排出的液体的排出装置的（S18，S28，S38） 塔（2A，2B，2C）的基础上，通过计算在PID方式的液体表面水平信号（S12），并提供给离子的供给流量信号（S10，S18，S28）所获得的液体表面水平PID操作信号 -Exchange树脂塔（2A，2B，2C），和移动液体表面水平（图6A）接近目标液面水平。 优选地，接口电平（图4a）由接口水平传感器（52）检测，并且目标液面水平被增加或减少到gemäß的增加/减少的界面能级（4a）的。 接口级传感器（52）包括发光份多元以及其在一对一的关系是彼此相对的光接收部分复数。

公开(公告)号：EP1225829B1

公开(公告)日：2007-01-03

申请号：EP00966350.1

申请日：2000-10-13

申请人： ELTEK S.p.A.

发明人： PERUCCA, Giovanni ,  NEBBIA, Fabio

IPC分类号： A47L15/44 ,  G01F23/292

CPC分类号： G01F23/2924 ,  A47L15/4418

摘要： A dispenser of washing agents is described, for a household washing machine, in particular a dishwasher, said dispenser (10) comprising a tank (12) for containing a liquid washing agent to which a visual control device (17-18) is associated, of the level of said liquid washing agent, said control device comprising a passage (18), placed between said tank (12) and the external part of the body (11) of the dispenser (10), and an element in a substantially transparent material (17) inserted in said passage (18), a first portion (22) of said transparent element (17) being at least partially visible from the outside of said body (11) and a second portion (17B) of said transparent element (17) being inserted in said tank (12), where at the free end of said second portion (17B) a series of projections (20) is defined, being placed at different levels of height.

公开(公告)号：EP1289404A1

公开(公告)日：2003-03-12

申请号：EP01934224.5

申请日：2001-05-21

申请人： ELTEK S.p.A.

发明人： PERUCCA, Giovanni ,  NEBBIA, Fabio ,  CERRUTI, Daniele ,  BELFIORE, Stefano ,  GADINI, Costanzo

IPC分类号： A47L15/44 ,  G01F23/292

CPC分类号： G01F23/2924 ,  A47L15/4409 ,  Y10S116/05

摘要： A washing agent dispenser is described, for a household washing machine, namely a dishwasher, said dispenser (10) comprising a tank (12) for containing a liquid washing agent, to which a device (DS) is associated for the visual control of the level of said liquid washing agent. According to the invention, said control device (DS) comprises a plurality of elements of a substantially transparent material (17), which are inserted in respective passages extending between said tank (12) and the outside of the body (11) of the dispenser (10). The parts (17D) of each one of said transparent elements (17) which are visible outside said body (11) form the steps of a scale indicating the level of said liquid washing agent contained in the tank (12).