Class / Patent application number | Description | Number of patent applications / Date published |
205793000 | Using semipermeable membrane | 13 |
20090050493 | Gas Sensor, Fuel Supply System Using the Same, and Method of Using Gas Sensor - A gas sensor has a gas diffusion barrier that supports therein a catalyst that catalyzes a reaction between combustible components and oxygen; a solid electrolyte having oxide ion conductivity; and electrodes formed on opposite surfaces of the solid electrolyte. The electrode is formed in a region into which ambient gas diffuses at a rate limited by the gas diffusion barrier. The electrode also catalyzes the reaction between combustible gas and oxygen. The electrode is formed in a region into which atmosphere is introduced. | 02-26-2009 |
20100126885 | SENSOR DEVICE AND METHOD OF MEASURING A SOLUTION - A sensor device includes a porous insulating layer formed of a porous insulating material; a first electrode having a first opening portion formed on a first side of the porous insulating layer; a second electrode having a second opening portion corresponding to the first opening portion formed on a second side of the porous insulating layer; an insulating layer formed on the second electrode; and a molecular recognition material disposed on internal walls of an opening in the porous insulating layer. | 05-27-2010 |
20100252455 | METHODS OF OPERATION OF ELECTROCHEMICAL GAS SENSORS - A method of operating an electrochemical gas sensor includes:
| 10-07-2010 |
20110079523 | Gas Sensor With a Microporous Electrolyte Layer - The present invention relates to electrochemical sensors for determining gaseous analytes in an aqueous measuring medium, to a process for producing such sensors, and to a process for determining gaseous analytes dissolved in an aqueous measuring medium using the electrochemical sensors. The electrolyte layer of the sensors comprises at least one particulate material and at least one binder which together form a porous, non-swellable framework structure, wherein the pores in this framework structure are configured to absorb a liquid electrolyte or contain the liquid electrolyte. | 04-07-2011 |
20110186449 | METHOD AND DEVICE USING NANOPOROUS MEMBRANE FOR DETECTING AND QUANTIFYING HEAVY METAL IONS IN A FLUID BY ANODIC STRIPPING VOLTAMMETRY - Method and a device for capturing heavy metal ions included in sewage sludge. The method includes steps of:
| 08-04-2011 |
20120103837 | TRACE GAS SENSING APPARATUS AND METHODS FOR LEAK DETECTION - A trace gas sensing apparatus includes a cathode, an anode, a vacuum enclosure, and a membrane. The anode coaxially surrounds the cathode, wherein the cathode and the anode define an annular ionization chamber. The vacuum enclosure surrounds the cathode and the anode and includes a gas inlet fluidly communicating with the ionization chamber. The membrane is coupled to the gas inlet in a sealed manner and is permselective to trace gas. The apparatus may further include circuitry for applying a negative voltage potential to the cathode and for measuring an ion current signal generated by the cathode, and a magnet assembly for generating a magnetic field in the ionization chamber. The cathode may include an elongated member located along a longitudinal axis, and first and second end plates orthogonal to the longitudinal axis. | 05-03-2012 |
20120205261 | Method and apparatus of identifying explosives and chemical warfare on-field with capacitative neutrons generator - The aim of the present invention is to identify stationary and moveable high explosives and chemical warfare on-field with a unique structure of a portable neutrons generator used in strategic and public places, vehicles and airplanes. The present invention includes also a unique operation of fusion fuel below breakdown which is characterized with high production efficiency. The analysis of identifying the elements and their concentrations is also introduced in the present invention. | 08-16-2012 |
20130062223 | CARBON MONOXIDE SENSOR SYSTEM - A gas sensor having first and second electrodes, an ion conducting solid electrolyte membrane positioned therebetween, first and second electrically conductive gas diffusion layers, first and second electrode contact members for electrically coupling said first and second electrodes to an external circuit, a water reservoir, a gas entry passageway and a water permeation barrier for controlling the transport of water vapor to the ion conducting solid electrolyte membrane. The water permeation barrier is a thin walled member which allows water vapor to diffuse therethrough and evaporate from an exit surface, the thickness of the water permeation barrier controlling the internal relative humidity of the sensor. A method for adjusting the present sensor in-situ due to changes in the current humidity conditions of the sensor so as to keep the gas sensitivity loss within a predetermined range is also disclosed. | 03-14-2013 |
20130270125 | Potentiometric Sensor Apparatus - A potentiometric sensor apparatus, comprising: a measuring half-cell having a measuring membrane; a reference half-cell; and a measurement circuit for registering a potential difference between the measuring half-cell and the reference half-cell. The measuring membrane has, covering at least one portion of the measuring membrane during dry storage of the sensor apparatus, a coating, which is embodied, upon immersion of at least one immersion region of the sensor apparatus (which region comprises the measuring membrane and is intended for immersion in a measured medium) in a liquid, especially a water containing liquid, in the case of continued contact with the liquid, to dissolve, at least partially, off of the measuring membrane. | 10-17-2013 |
20140110274 | IONIC PAPER ELECTRONIC PLATFORM (IPEP) - A method of producing porous ionic conducting material, comprising the step of positioning an ionic substance into cellulosic material to form a continuous web or at least one individual sheet of porous ionic cellulosic based material, comprising the steps of first producing a web or sheet shaped cellulosic based substrate and thereafter applying liquid comprising room temperature ionic liquids. The porous ionic conducting material is used in flexible electronic device, by using the material as a substrate and applying a conducting material. A sensor assembly for sensing a property of an object, comprising at least one sensor wherein said sensor assembly comprises a flexible web or sheet shaped material. An authentication device for verifying the authenticity of an object. The device comprising at least one flexible electronic device. A method for verifying an authenticity of an object, | 04-24-2014 |
20140262838 | Microelectrochemical Sensor and Method for Operating a Microelectrochemical Sensor - A microelectrochemical sensor having a diaphragm, a web, a first and a second electrode. The diaphragm is permeable to ions of a chemical species, is arranged transversely with respect to a cutout in a base body, and closes off the cutout in a fluid-tight fashion. The web is arranged on a first side of the diaphragm between a first partial surface and a second partial surface, and is designed to adjust a temperature of the diaphragm to an operating temperature using electrical energy. The first electrode has a first partial electrode and a second partial electrode, is permeable to fluid, and is arranged on the first side of the diaphragm. The web prevents electrical contact between the first electrode and the diaphragm. The second electrode has a third partial electrode and a fourth partial electrode, is also permeable to fluid, and is arranged on a second side of the diaphragm. | 09-18-2014 |
20160033446 | Devices and Methods for Measuring Analyte Concentration - Disclosed herein are devices and methods for the detection, quantification and/or monitoring of analytes. The systems and methods can be used, for example, to rapidly monitor gases downhole in a well. | 02-04-2016 |
20160041120 | Devices and Methods for Measuring Analyte Concentration - Provided herein are devices and methods for reducing the negative effects of bubble formation on the detection, quantification and/or monitoring of analytes. | 02-11-2016 |