公开(公告)号：US06828808B2

公开(公告)日：2004-12-07

申请号：US10344000

申请日：2003-02-06

申请人： Rengaswamy Srinivasan ,  Francis B. Weiskopf, Jr. ,  Kenneth R. Grossman ,  Russell P. Cain ,  Hassan Saffarian

发明人： Rengaswamy Srinivasan ,  Francis B. Weiskopf, Jr. ,  Kenneth R. Grossman ,  Russell P. Cain ,  Hassan Saffarian

IPC分类号： G01R2708

CPC分类号： G01N27/04 ,  G01N33/383

摘要： A long-life conductivity sensor system and method that is embeddable or immersible in a medium. The conductivity sensor system includes at least a housing with an enclosing wall that defines an interior volume and that has at least one aperture through the wall; a pair of electrodes protruding through the aperture into a medium surrounding the sensor housing; and conductivity sensing electronics contained within the sensor housing interior volume and connected to the pair of electrodes. The conductivity sensing electronics include a galvanostat connected to the electrodes for inducing discrete constant current pulses between the electrodes creating a transient voltage signal between the electrodes; and a high-speed voltmeter/A-D Converter connected to the electrodes for measuring the transient voltage signal between the electrodes, the transient voltage signal being a function of the conductivity of the medium surrounding the sensor housing.

摘要翻译： 一种长寿命的电导率传感器系统和方法，可嵌入或浸入介质中。 所述电导率传感器系统至少包括具有封闭壁的壳体，所述封闭壁限定内部容积并且具有穿过所述壁的至少一个孔; 一对电极，通过所述孔突出到围绕所述传感器壳体的介质中; 以及电导率检测电子器件包含在传感器壳体内部体积内并连接到该对电极。 电导率感测电子器件包括连接到电极的恒电压器，用于在电极之间引起离散的恒定电流脉冲，在电极之间产生瞬时电压信号; 和连接到电极的高速电压表/ A-D转换器，用于测量电极之间的瞬态电压信号，瞬态电压信号是围绕传感器外壳的介质的电导率的函数。

公开(公告)号：US06695469B2

公开(公告)日：2004-02-24

申请号：US09989790

申请日：2001-11-19

申请人： Patrick A. Leonhardt

发明人： Patrick A. Leonhardt

IPC分类号： G01N2504

CPC分类号： G08B19/02 ,  G01N27/04

摘要： Improved roadway freezing point monitoring systems and methods include improved sample wells for the accurate measurement of the freezing point of liquid on a roadway, the use of temperature sensors that require only two conductors to receive power and to send and receive digital address and temperature information, improved algorithms for detecting the freeze point of liquid on the roadway, the use of conductivity measurements to verify detected freeze points, and the transmission of temperature information via the Internet to remote computers.

摘要翻译： 改进的道路凝固点监测系统和方法包括改进的样品井，用于精确测量道路上液体的凝固点，使用仅需要两根导体接收电力的温度传感器，以及发送和接收数字地址和温度信息， 用于检测道路上液体冻结点的改进算法，使用电导率测量来验证检测到的冻结点，以及通过因特网向远程计算机传输温度信息。

公开(公告)号：US4918391A

公开(公告)日：1990-04-17

申请号：US169434

申请日：1988-03-17

申请人： Jeffrey M. Byrd

发明人： Jeffrey M. Byrd

IPC分类号： G01N27/04 ,  G01N33/02

CPC分类号： G01N33/02 ,  G01N27/04

摘要： A salt sensor is disclosed which is portable and easily handled by a person at a restaurant or in his home for determining the sodium content of the food or beverage he is about to consume. The salt sensor includes a uniquely designed contact top which is electronically connected to a circuit which generates an AC signal. The strength of the signal transmitted across the contact tips is directly proportional to the conductivity of the food or beverage being tested and is, accordingly, registered on a display panel located on the body of the salt sensor.

摘要翻译： 公开了一种盐传感器，其便携式并且容易地由餐厅或家中的人处理以确定他将要消费的食物或饮料的钠含量。 盐传感器包括独特设计的接触顶部，其电连接到产生AC信号的电路。 通过接触尖端传输的信号的强度与正在测试的食品或饮料的电导率成正比，并因此被登记在位于盐传感器主体上的显示面板上。

公开(公告)号：US4888818A

公开(公告)日：1989-12-19

申请号：US43835

申请日：1987-04-28

申请人： Wolfgang Schmitt ,  Dietmar Bege

发明人： Wolfgang Schmitt ,  Dietmar Bege

IPC分类号： G01D1/10 ,  G01D3/028 ,  G01N27/00 ,  G01N27/04 ,  G01N33/38

CPC分类号： G01N33/383 ,  G01N27/04

摘要： A method for the determination of the setting process in an inorganic aqueous binder system, in that the electrical conductivity is constantly measured in the binder system, in that the variation of the electrical conductivity is differentiated according to time, in that the variation of the first derivative of the conductivity is monitored, and in that the temperature in the binder system is continously measured and the temperature dependence of the electrical conductivity is eliminated by means of the measured temperature values.

摘要翻译： 一种用于确定无机水性粘合剂体系中的凝固过程的方法，其中在粘合剂体系中不断地测量导电性，因为电导率的变化根据时间而不同，因为第一 监测电导率的导数，并且连续测量粘合剂体系中的温度，并通过测量的温度值消除导电性的温度依赖性。

公开(公告)号：US4419229A

公开(公告)日：1983-12-06

申请号：US337272

申请日：1982-01-05

申请人： Roque Rubio Salas

发明人： Roque Rubio Salas

IPC分类号： G01N27/04 ,  C02B1/40

CPC分类号： G01N27/04

摘要： A device for detecting cation saturation in an ion exchange filter includes electrodes disposed in an interchanging resin. One of the electrodes receives power from a source of supply, while the other electrode picks up a cation potential signal and through a tracking circuit comprising an operational system informs a comparator circuit having a fixed threshold valve which operates depending on the value emitted by the tracking circuit, activating a luminous and/or acoustic alarm system, all of which is optatively activated by means of a manually operated push-button.

摘要翻译： 用于检测离子交换过滤器中的阳离子饱和的装置包括设置在交换树脂中的电极。 一个电极从电源接收电力，而另一个电极拾取阳离子电位信号，并且通过包括操作系统的跟踪电路通知具有固定阈值阀的比较器电路，该阈值阀根据跟踪发射的值而工作 电路，激活发光和/或声音报警系统，所有这些系统都通过手动操作的按钮选择性启动。

公开(公告)号：US20190042822A1

公开(公告)日：2019-02-07

申请号：US16149872

申请日：2018-10-02

申请人： IDEX ASA

发明人： Fred G. BENKLEY, III

IPC分类号： G06K9/00

CPC分类号： G06K9/0002 ,  G01N27/04 ,  G06K9/00053 ,  Y10T307/766

摘要： A novel sensor is provided having a plurality of substantially parallel drive lines configured to transmit a signal into a surface of a proximally located object and also a plurality of substantially parallel pickup lines oriented proximate the drive lines and electrically separated from the drive lines to form intrinsic electrode pairs that are impedance sensitive at each of the drive and pickup proximal locations. A switch is integrated with the sensor.

公开(公告)号：US20190033160A1

公开(公告)日：2019-01-31

申请号：US15662730

申请日：2017-07-28

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： MATTHIAS DITTBERNER ,  LEVENTE KLEIN

IPC分类号： G01M3/16 ,  G01N27/04 ,  G01N33/00 ,  G01W1/00

CPC分类号： G01M3/16 ,  G01M3/18 ,  G01N27/04 ,  G01N27/045 ,  G01N33/0031 ,  G01W1/00 ,  G01W2001/003

摘要： A method, a system and an apparatus for adaptively sensing a gas leak. The method includes: obtaining wind data from a wind sensor, identifying at least one wireless mote in a plurality of wireless motes that is most likely to detect a gas plume from the wind data, activating the identified at least one wireless mote to trigger measuring gas concentration of the gas plume, and identifying the location of the gas leak if the gas concentration is above a predetermined threshold. Also included is a system for adaptively sensing a gas leak having a wind sensor, a plurality of wireless motes and a server in communication therewith. An apparatus for adaptively sensing a gas leak in an industrial site is also provided.

公开(公告)号：US10078064B2

公开(公告)日：2018-09-18

申请号：US15233413

申请日：2016-08-10

申请人： MAIN-ENERGIA INC.

发明人： Taik Nam Kim ,  Suk Ho Sinn

IPC分类号： G01N27/00 ,  G01N27/04 ,  G01N33/552 ,  G01N33/553 ,  H02S50/00

CPC分类号： G01N27/04 ,  G01N27/12 ,  G01N33/552 ,  G01N33/553 ,  H02S40/10 ,  H02S50/00

摘要： An apparatus to measure the pollution level of the surface of a photovoltaic module. A resistance change on the surface of a photovoltaic module is sensed to effectively measure the pollution level on the surface of the photovoltaic module and secure a proper cleaning cycle of the module during solar light power generation. The apparatus includes a glass substrate attachably mounted on the surface of a photovoltaic module. A reactive coating layer is coated on one side of the glass substrate, has a structure that pollutants are accumulated on one side surface, and causes a resistance change by contact with the pollutants. A signal processor connected to the reactive coating layer to receive a signal of the resistance change, operationally process the signal to measure a change in the resistance value caused by accumulation of the pollutants, and output a discrimination signal on pollution.

公开(公告)号：US20180238821A1

公开(公告)日：2018-08-23

申请号：US15752133

申请日：2016-11-09

申请人： KYOCERA Corporation

发明人： Hidekazu OTOMARU ,  Takashi KIMURA

IPC分类号： G01N27/04 ,  G01N15/06 ,  B01D46/00

CPC分类号： G01N27/04 ,  B01D46/0084 ,  G01N15/0606 ,  G01N15/0656 ,  G01N2015/0046

摘要： There are provided a sensor substrate and a sensor device which have high detection accuracy. A sensor substrate includes an insulating substrate; sensing electrodes disposed in the insulating substrate, the sensing electrodes being columnar and being composed of at least one pair of positive and negative sensing electrodes, in the at least one pair of positive and negative sensing electrodes, part of a positive electrode and part of a negative electrode being each exposed from one surface of the insulating substrate; and innerlayer wiring lines embedded within the insulating substrate, the innerlayer wiring lines corresponding to the positive electrode and the negative electrode, respectively, in the at least one pair of positive and negative sensing electrodes.

公开(公告)号：US10054561B2

公开(公告)日：2018-08-21

申请号：US15322138

申请日：2015-12-14

申请人： DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES

发明人： Gongquan Sun ,  Zhangxun Xia ,  Suli Wang ,  Xudong Fu

IPC分类号： G01N27/04 ,  G01N27/06 ,  G01N27/416 ,  G01N27/26 ,  G01R31/36

CPC分类号： G01N27/04 ,  G01N27/041 ,  G01N27/06 ,  G01N27/26 ,  G01N27/416 ,  G01N27/4162 ,  G01R31/36

摘要： An ionic conductance measuring instrument comprising a voltage/current test device and a test electrode, in which the test electrode comprises a bulk substrate with four linearly arranged through holes, four Pt wires inserted in the through holes respectively with their upper ends exposed outside of the bulk and their downside ends hidden inside of the bulk; the four axis of the Pt wire is in the same plane and parallel with each other; the gap distance between the mentioned Pt wire and the bulk substrate is 0.1-2 mm, and is filled with ionic conductive polymer.