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7632384 |
Multi-functional sensor system for molten salt technologies
The present invention relates to a multi-functional sensor system that simultaneously measures cathode and anode electrode potentials, dissolved ion (i.e. oxide) concentration, and temperatures in...
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7582196 |
Laminated membranes for diffusion limited gas sensors resistant to pressure variations
A micro fuel cell sensor having laminated gas permeable membrane. The sensor comprises a housing, first and second gas diffusing electrodes spaced from one another, a fuel-cell spacer having an...
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7560012 |
Gas sensor
A gas sensor is constructed as follows. A protector ( 4 ) covering around a gas sensing element ( 2 ) has an inner hollow-cylindrical portion ( 6 ) and an outer hollow-cylindrical portion ( 7 )...
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7524407 |
Gas sensor
An oxygen sensor 10 includes an oxygen detection element 20 , which assumes a hollow tubular shape extending along the axis. The oxygen detection element 20 has a closed tip end and an opened...
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7476376 |
Metal composite oxide with novel crystal structure and their use as ionic conductors
Disclosed is metal composite oxides having the new crystal structure. Also disclosed are ionic conductors including the metal composite oxides and electrochemical devices comprising the ionic...
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7361620 |
Catalytically active layer
A catalytically active layer that is used, for example, as an electrode for a solid electrolyte-based sensor element of a gas sensor for determining a gas component in a gas mixture. The...
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7335287 |
Solid electrolyte sensor for monitoring the concentration of an element in a fluid particularly molten metal
The present invention relates to an electrochemical sensor for determining the concentration of a group IA metal in a fluid such as molten metal. The sensor comprises a substantially pure quantity...
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7237430 |
Method and apparatus for enhanced detection of a specie using a gas chromatograph
The invention includes a method and apparatus for a chromatography system having a chromatographic column for separating gases in a mixture from one another and an electrochemical gas sensor...
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7087151 |
Hydrogen sensor for use in battery overcharge/overdischarge detector and hydrogen leakage detector
A hydrogen sensor which may be employed in an overcharge/overdischarge detector for a battery and a hydrogen leakage detector for a fuel cell is provided. The hydrogen sensor includes a sensor...
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6929735 |
Electrochemical sensor having improved response time
The invention relates to a method and apparatus for providing an electrochemical gas sensor having improved response time for detecting a gas introduced into the sensor. The sensor includes a...
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6890422 |
Oxidizable gas component sensor and method of using the sensor
An electrochemical gas sensor determining the concentration of oxidizable gas components which has an electrochemical measuring cell having a measuring electrode and a reference electrode....
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6623617 |
Method and apparatus for measuring concentration of a component in a gas
A method and apparatus which enable accurate measurement of the concentration of NOx in a gas under measurement, even when the NOx concentration is low. A gas under measurement is introduced into a...
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6338783 |
Gas sensor, method of manufacturing the same, and gas sensor system using the gas sensor
A gas sensor which can detect the concentration of a combustible gas component in a measurement gas with high accuracy even when the oxygen concentration of the measurement gas or the element...
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6312585 |
Method for determining oxidizable constituents in a gaseous mixture
A method and arrangement is described for determining oxidizable constituents in a gas mixture by using a solid electrolyte cell with at least one reference electrode and at least one working...
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6306285 |
Techniques for sensing methanol concentration in aqueous environments
An analyte concentration sensor that is capable of fast and reliable sensing of analyte concentration in aqueous environments with high concentrations of the analyte. Preferably, the present...
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6258231 |
Chemical mechanical polishing endpoint apparatus using component activity in effluent slurry
An apparatus for determining the endpoint in a chemical mechanical polishing operation used for polishing a metal-containing material includes an electrochemical cell and an electronic circuit. An...
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6090268 |
CO gas sensor and CO gas concentration measuring method
A CO gas sensor according to the present invention includes a gas collecting container for collecting a measured gas therein; a detecting section provided within the gas collecting container and...
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6084418 |
Method for accurately detecting sensor element resistance
An air-fuel ratio sensor generates linear air-fuel ratio detection signals proportional to concentration of oxygen in exhaust gas from an engine in response to a command voltage from a...
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6071393 |
Nitrogen oxide concentration sensor
A small-sized inexpensive nitrogen oxide concentration sensor capable of measuring the concentration of the nitrogen oxide in a measuring gas to a high accuracy. A first oxygen pumping cell, an...
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6013163 |
Probe for detection of the concentration of various elements in molten metal
A system is provided for measuring the concentration of an element in molten metal such as silicon, chromium, manganese or aluminum. The system includes a probe with a sensor having a solid...
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5989408 |
Process for measuring an electrochemical activity
A a process as well as an immersion sensor for measuring an electrochemical activity of a layer lying on a melt is provided, using an electrochemical sensor, which has a measuring cell and a...
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5976335 |
Gas sensor having a function for minimizing heater leak current
Disclosed is a gas sensor comprising a main pumping cell including a solid electrolyte layer contacting with an external space, and an inner pumping electrode and an outer pumping electrode formed...
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5958340 |
Solid-state chemical sensor
The invention pertains to a solid-state chemical sensor with a substrate support. On one side of the support is mounted a heating element with branch circuit connections. On the other side...
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5893968 |
Method and apparatus for measuring combustible gas component by burning the component
An apparatus for measuring a combustible gas component of a subject gas in an external subject gas space, including a first processing zone communicating with the subject gas space, 58), a second...
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5820745 |
Method of measuring the concentration of a gas in a gas mixture and electrochemical sensor for determining the gas concentration
The invention relates to a method as well as to an electrochemical sensor for measuring the concentration of at least one predetermined gas in a gas mixture by means of an electrolyte provided with...
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5736028 |
Sensor and method for detecting oxides of nitrogen
The present invention relates to a sensor for detection of oxides of nitrogen forming part of a gas, including a substrate consisting of a solid electrolyte on which a conductive pattern is...
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5683570 |
Gas detection method
A method is provided for measuring the concentration of a sample gas in an oxygen-containing carrier gas by continuously flowing the oxygen-containing carrier gas which also contains the sample gas...
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5650054 |
Low cost room temperature electrochemical carbon monoxide and toxic gas sensor with humidity compensation based on protonic conductive membranes
A low cost room temperature electrochemical gas sensor with humidity compensation for sensing CO, alcohol vapors and other toxic analyte gases has a solid protonic conductive membrane with a low...
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5611901 |
Oxygen measuring probe
An oxygen measuring probe for use with molten metal baths for the manufacture of glass which probe comprises a probe body (4) comprising an elongate tubular member (6) closed at one end by a...
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5596134 |
Continuous oxygen content monitor
A continuous oxygen content monitor has a reference electrode embedded in a powdered chrome-chrome-oxide mixture and a counter electrode embedded in an elongate alumina-graphite sleeve which acts...
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5578194 |
Calibration of electrodes
A CO 2 electrode can be calibrated with two PCO 2 calibration standard solutions having known pH values and known bicarbonate ion source concentrations. An O 2 electrode can be calibrated using...
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5573648 |
Gas sensor based on protonic conductive membranes
A low cost room temperature electrochemical gas sensor for sensing CO and other toxic analyte gases has a solid protonic conductive membrane with a low bulk ionic resistance. A sensing electrode...
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5556534 |
Electrochemical oxygen and PH sensors employing fluoride based solid-state electrolytes
Electrochemical sensors and methods for their use are provided for the detection of the pH and/or oxygen concentration in an aqueous medium. The subject sensors comprise a closed-end cylinder...
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5538620 |
Electrochemical sensor with which to measure gas concentrations
The invention concerns a novel electrochemical sensor with which to measure gas concentrations and comprising a measuring electrode and an associated electrode containing a carbonaceous material...
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5492610 |
Solid state electrochemical cell for performing electro-chemical measurements on a solid electrolyte at high temperatures
A solid state electrochemical cell is provided for performing electrocheml measurements on a solid electrolyte at high temperatures. The solid state electrochemical cell includes a noble metal...
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5480523 |
Method of using oxygen measuring probe
An oxygen measuring probe for use with molten metal baths for the manufacture of glass which probe comprises a probe body (4) comprising an elongate tubular member (6) closed at one end by a...
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5433830 |
Method of activating zirconia oxygen sensor
Activation treatment for a zirconia oxygen sensor is performed by applying alternately a treating voltage, which can make an oxygen partial pressure at the electrode-zirconia interface of a sensor...
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5342489 |
Method of measuring oxygen activities in slag
A method and apparatus for measuring the oxygen activity of the slag in molten iron or molten steel with high accuracy. A conventional measuring method in which an oxygen concentration cell...
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5332449 |
Immersion sensor for molten metals
An immersion sensor for molten metals has an electrically conducting support pin, whose one end is mounted in a refractory mounting material, and whose other free end has a first coating of a...
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5118398 |
Method and an apparatus for detecting ionizable substance
The amount of ionizable substance within a stream can be continuously monitored through the use of an ionizable substance detector. The substance is ionized at an electrode producing ions and free...
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5112456 |
Electrochemical sensors and methods for their use
Electrochemical sensors are provided having improved sensitivity, stability and dirability. In accordance with preferred embodiments, such sensors comprise protective sheath means having at least...
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5071528 |
Method and device for measuring the oxygen partial pressure in high-temperature, corrosive liquids
The invention relates to a measuring device to measure the oxygen partial pressure, in particular, glass melts, comprising a platinum measuring electrode and a reference electrode arrangement. The...
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4985123 |
In situ polarographic sensor calibration
A coated polarographic sensor is calibrated by exposing the sensor to calibration media having known temperatures and species chemical potentials. The sensor is allowed to equilibrate with respect...
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4900404 |
Phosphate selective membrane electrode
An improved phosphate selective membrane electrode using bis(p-chlorobenzyl)tin dichloride as the membrane active component. In addition to this tin compound, the membrane contains...
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4447780 |
Linearizing circuit and method of calibrating same
A linearizing circuit (10) is disclosed for devices having logarithmic outputs, such as electrolytic oxygen detectors (12). The circuit (10) has an inverting biasing circuit (14) and a scaling...
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4313799 |
Oxygen sensor and method for determining the oxygen activity in molten glass
A method and apparatus for the measurement of oxygen activity in molten glass is disclosed. The apparatus or oxygen sensor is based upon an oxygen ion conducting solid electrolyte and solid...
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4139421 |
Method of determining oxygen content
A method of determining the oxygen content of a liquid metal is disclosed and comprises measuring the EMF across an electrolytic cell in which one of the electrodes comprises the liquid metal and...
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4105507 |
Method and system for instantaneously determining the oxygen activity in molten metals
A system for determining the oxygen activity in molten metals includes a measuring probe insertable in the melt and provided with an electrochemical cell, a thermoelement, and three contact...
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4045300 |
Method for reducing the response time in oxygen measuring probes
A method for reducing the response time in the measurement of the oxygen content in molten metals by means of a probe of the type comprising a solid electrolyte which produces an electromotive...
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3922204 |
Method of making catalyst having a perovskite structure, the resulting product and uses thereof
A catalyst material is described having the general formula: And which has a perovskite structure and the cations A, B and C are given certain limitations. The catalyst is particularly suited to...
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