公开(公告)号：US3424004A

公开(公告)日：1969-01-28

申请号：US3424004D

申请日：1966-02-21

申请人： ILLINOIS TOOL WORKS

发明人： RAPATA GEORGE M

IPC分类号： G01F23/16 ,  G01F23/292 ,  G01F23/02

CPC分类号： G01F23/2924 ,  G01F23/165

公开(公告)号：US10012626B2

公开(公告)日：2018-07-03

申请号：US14968963

申请日：2015-12-15

申请人： Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG

发明人： Ralf Bernhard

IPC分类号： G01N15/06 ,  G01N31/00 ,  G01F23/292 ,  G01F13/00

CPC分类号： G01N31/00 ,  G01F13/00 ,  G01F23/2921 ,  G01F23/2924 ,  G01F23/2927

摘要： An apparatus for determining a value that represents an amount of liquid in a vessel, wherein the vessel is configured to be a tube or a cuvette. The vessel for the liquid is basically transparent, with at least one radiation unit, that is arranged alongside the longitudinal axis of the vessel and that radiates light into the vessel, as well as at least one light detector with at least one light receiver that is assigned to the radiation unit and that receives the light that is coming through the vessel and forwards it to the light detector. The apparatus comprises a data processing unit that determines the value that represents the amount of the liquid in the vessel from the light that was detected by the light detector. The apparatus is characterized in that the light detector detects the sum total of the light that was radiated through the vessel and was received by all light receivers. Furthermore, the invention relates to the use of the apparatus in an analyzer.

公开(公告)号：US20160178425A1

公开(公告)日：2016-06-23

申请号：US14968963

申请日：2015-12-15

申请人： Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG

发明人： Ralf Bernhard

IPC分类号： G01F23/292 ,  G01F23/00

CPC分类号： G01N31/00 ,  G01F13/00 ,  G01F23/2921 ,  G01F23/2924 ,  G01F23/2927

摘要： An apparatus for determining a value that represents an amount of liquid in a vessel, wherein the vessel is configured to be a tube or a cuvette. The vessel for the liquid is basically transparent, with at least one radiation unit, that is arranged alongside the longitudinal axis of the vessel and that radiates light into the vessel, as well as at least one light detector with at least one light receiver that is assigned to the radiation unit and that receives the light that is coming through the vessel and forwards it to the light detector. The apparatus comprises a data processing unit that determines the value that represents the amount of the liquid in the vessel from the light that was detected by the light detector. The apparatus is characterized in that the light detector detects the sum total of the light that was radiated through the vessel and was received by all light receivers. Furthermore, the invention relates to the use of the apparatus in an analyzer.

摘要翻译： 一种用于确定表示容器中的液体量的值的装置，其中所述容器被配置为管或比色皿。 用于液体的容器基本上是透明的，具有至少一个辐射单元，其沿着容器的纵向轴线布置并且将光辐射到容器中，以及至少一个具有至少一个光接收器的光检测器 分配给辐射单元并且接收通过容器的光并将其转发到光检测器。 该装置包括数据处理单元，其从由光检测器检测的光确定表示容器中的液体的量的值。 该装置的特征在于，光检测器检测通过容器辐射并被所有光接收器接收的光的总和。 此外，本发明涉及在分析仪中使用该装置。

公开(公告)号：US08695420B1

公开(公告)日：2014-04-15

申请号：US12827598

申请日：2010-06-30

申请人： Valentin Korman ,  John T. Wiley ,  Amanda G. Duffell

发明人： Valentin Korman ,  John T. Wiley ,  Amanda G. Duffell

IPC分类号： G01F23/00

CPC分类号： G01F23/2925 ,  G01F23/2921 ,  G01F23/2924

摘要： A liquid level sensing system includes waveguides disposed in a liquid and distributed along a path with a gap between adjacent waveguides. A source introduces electromagnetic energy into the waveguides at a first end of the path. A portion of the electromagnetic energy exits the waveguides at a second end of the path. A detector measures the portion of the electromagnetic energy exiting the second end of the path.

摘要翻译： 液位感测系统包括布置在液体中的波导并且沿着具有相邻波导之间的间隙的路径分布。 源在路径的第一端将电磁能引入到波导中。 电磁能的一部分在路径的第二端处离开波导。 检测器测量离开路径第二端的电磁能的一部分。

公开(公告)号：US07199388B2

公开(公告)日：2007-04-03

申请号：US10480443

申请日：2002-06-12

申请人： Naoyuki Omatoi

发明人： Naoyuki Omatoi

IPC分类号： G01N15/06 ,  G01F23/00 ,  G08B21/00

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不选择检测对象的情况下用于各种检测对象和使用环境中的液面检测装置，能够有效地向液面检测装置照射光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，由光接收装置接收未被辐射反射的散射光，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。 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：US06851581B2

公开(公告)日：2005-02-08

申请号：US10276445

申请日：2001-05-21

申请人： Giovanni Perucca ,  Fabio Nebbia ,  Daniele Cerruti ,  Stefano Belfiore ,  Costanzo Gadini

发明人： Giovanni Perucca ,  Fabio Nebbia ,  Daniele Cerruti ,  Stefano Belfiore ,  Costanzo Gadini

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 including a tank for containing a liquid washing agent, to which a device is associated for the visual control of the level of said liquid washing agent. According to the invention, said control device has a plurality of elements of a substantially transparent material, which are inserted in respective passages extending between said tank and the outside of the body of the dispenser.The parts of each one of said transparent elements which are visible outside said body form the steps of a scale indicating the level of said liquid washing agent contained in the tank.

摘要翻译： 描述了洗涤剂分配器，对于家用洗衣机，即洗碗机，所述分配器包括用于容纳液体洗涤剂的罐，与该液体洗涤剂相关联的容器用于视觉控制所述液体洗涤剂的水平。 根据本发明，所述控制装置具有多个基本上透明的材料元件，它们插入在所述容器和分配器主体外部之间延伸的相应通道中。每个所述透明元件的部分是 在所述体外部可见，形成表示包含在罐中的所述液体洗涤剂的水平的标度的步骤。

公开(公告)号：US20040232364A1

公开(公告)日：2004-11-25

申请号：US10480443

申请日：2004-06-04

发明人： Naoyuki Omatoi

IPC分类号： G01N015/06

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不选择检测对象的情况下用于各种检测对象和使用环境中的液面检测装置，能够有效地向液面检测装置照射光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， 并且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。 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：US20020124643A1

公开(公告)日：2002-09-12

申请号：US09802014

申请日：2001-03-09

发明人： Bruce Robinson

IPC分类号： G01F023/00

CPC分类号： G01F23/2924

摘要： This invention uses the change visual appearance on one end of a transparent probe when the opposite end contacts the surface of the liquid to be measured. A flexible fiber optic device is used to allow remote viewing or sensing with electronic sensors. The device includes the use of multiple probe levels to allow indication of a range of liquid levels. Optional use of a light source in low light conditions is also provided.

摘要翻译： 本发明当相反端接触被测液体的表面时，使用透明探头的一端上的改变视觉外观。 柔性光纤装置用于允许用电子传感器进行远程观察或感测。 该装置包括使用多个探针水平以允许指示一定范围的液位。 还提供了在低光条件下可选择使用光源。

公开(公告)号：US4286464A

公开(公告)日：1981-09-01

申请号：US112088

申请日：1980-01-14

申请人： Thomas E. Tauber ,  James Magee

发明人： Thomas E. Tauber ,  James Magee

IPC分类号： G01F23/292 ,  G01F23/00

CPC分类号： G01F23/2924

摘要： An optical fluid level monitor is disclosed. It comprises a plurality of prismatic sensors disposed in a linear array for measuring the levels of fluids, such as oil, in sumps of aircraft and helicopter engines and other closed containers. In use each of the sensors is sequentially pulsed by an integral light source. If the detector is above the fluid level it appears bright, if below it appears bright, if below it appears dark, this difference being caused by an integral light detector device. Counting circuits are provided to determine the number of bright sensors and electronically convert this into a fluid volume for display purposes. A presettable low volume alarm is also included as is a correction circuit to compensate for volume changes caused by heating of the fluid in use.

摘要翻译： 公开了一种光学液位监视器。 它包括多个棱柱传感器，其布置成线性阵列，用于在飞行器和直升机发动机和其他密闭容器的集水池中测量诸如油的流体的水平。 在使用中，每个传感器由一个整体光源依次脉冲。 如果检测器高于液位，则显示为亮，如果下方显示为亮，如果下方显示为暗，则该差异是由整体光检测器装置引起的。 提供计数电路以确定亮传感器的数量，并将其电转换成流体体积以进行显示。 还包括一个可预设的低音量报警，校正电路可以补偿由于使用中流体的加热引起的体积变化。

公开(公告)号：US4187025A

公开(公告)日：1980-02-05

申请号：US919981

申请日：1978-06-28

申请人： Alan L. Harmer

发明人： Alan L. Harmer

IPC分类号： G01N21/41 ,  G01F23/292 ,  G01N21/43 ,  G01N21/46

CPC分类号： G01F23/2924 ,  G01N21/431

摘要： A device for producing a light signal corresponding to the refractive index of a fluid medium comprises an elongated light-conducting body consisting of an input section and an an output section connected to each other by an intermediate curved section adapted for immersion in said fluid. This curved section is provided with a plurality of curvatures arranged successively and bent alternately in opposite directions, whereby light passing by refraction into said fluid undergoes a notably greater variation, as a function of the refractive index of said fluid medium, than can be obtained with a curved section bent in a simple direction. A light signal is thus provided with a high sensitivity.

摘要翻译： 用于产生对应于流体介质的折射率的光信号的装置包括由输入部分和输出部分组成的细长的导光体，输出部分和输出部分通过适于浸入所述流体中的中间弯曲部分相互连接。 该弯曲部分设置有多个曲率，其相互交替布置并沿相反的方向交替弯曲，由此通过折射到所述流体中的光作为所述流体介质的折射率的函数发生明显更大的变化， 弯曲部分沿简单方向弯曲。 因此，光信号具有高灵敏度。