Patents
Sitemap › G01 - Measuring; Testing › G01N - Investigating or analysing materials by determining their chemical or physical properties › G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
05/1982
05/18/1982US4330298 Reductive pyrolysis method for determining trace sulfur
05/18/1982CA1123969A1 Method of making an ion conductive gas sensor body with a cermet electrode thereon
05/18/1982CA1123968A1 Device for measuring a quantity which influences a field-effect transistor
05/18/1982CA1123929A1 Electrical socket connector
05/18/1982CA1123916A1 Oxygen sensor
05/13/1982WO1982001592A1 Device for determining surface defects of filament articles
05/12/1982EP0051344A1 Improvements in magnet assemblies for pipeline inspection vehicles
05/12/1982EP0006857B1 Electrophoresis membranes, their use in a separation method and separation apparatus
05/11/1982US4329650 Ultra-clean cell assembly
05/11/1982US4329649 Ion sensor probe
05/11/1982US4329591 Method for detecting samples
05/11/1982US4329214 Gas detection unit
05/11/1982US4329213 Gel diffusion immunoassay including α-feto protein determination
05/10/1982EP0041542A4 Compositions including mercaptoorganopolysiloxanes and metal salts of carboxylic acids.
05/04/1982US4328478 Humidity sensitive device
05/04/1982US4328477 Gas detecting element and process for producing the same
05/04/1982US4328424 Ionization detector chamber
05/04/1982US4328296 Sintered stabilized zirconia
05/04/1982US4328295 Solid electrolyte for use in oxygen concentration sensor
05/04/1982US4328294 Solid electrolyte for use in oxygen concentration sensor
05/04/1982US4328082 Solid state ion-sensitive electrode and method of making said electrode
05/04/1982US4327573 Method and apparatus for determining the low temperature characteristics of materials
05/04/1982CA1123124A1 Apparatus and a method for detecting and measuring trace gases in air or other gaseous backgrounds
05/04/1982CA1123123A1 Multiple chamber ionization detector
05/04/1982CA1123117A1 Rare earth or yttrium, transition metal oxide thermistors
05/04/1982CA1123057A1 Electrical impedance measuring apparatus for providing separate measurements of the conductivity and dielectric coefficient of various materials
05/04/1982CA1123053A1 Liquid membrane electrode
05/04/1982CA1123052A1 Gas sensing device and method of manufacturing same
04/1982
04/29/1982WO1982001418A1 Method of electrically testing sealed package
04/29/1982WO1982001306A1 Coated articles and materials suitable for coating
04/28/1982EP0050430A1 Apparatus for determining gas tension in a liquid
04/28/1982EP0050389A1 Derivatized agarose and method of making and using same
04/28/1982EP0050386A1 Apparatus for densitometric measurement of proteic fractions separated by electrophoresis
04/27/1982US4327361 Gas sensor
04/27/1982US4327323 Comparator apparatus and process
04/27/1982US4327122 Evaporated electrodes for zirconia exhaust gas oxygen sensors
04/27/1982US4327054 Gas sensor assembly
04/27/1982US4326934 Continuous dielectrophoretic cell classification method
04/27/1982US4326927 Gold deposits on a polytetrafluoroethylene substrate
04/27/1982US4326535 Circuit and method for the radiotelemetry of esophageal pH in an ECG radiotelemetry system
04/27/1982US4326414 Humidity detecting apparatus
04/27/1982US4326404 Respiratory monitor
04/27/1982US4326318 Electrode-active oxygen monitor
04/27/1982CA1122657A1 Pipe surface testing carriage
04/27/1982CA1122656A1 Three phase eddy current instrument
04/27/1982CA1122504A1 End point drift correction in automatic titration
04/27/1982CA1122437A1 Breath testing system
04/21/1982EP0050035A2 Oxygen electrodes and medical devices for determining the concentration of a gas in blood both of which employ a membrane of a hydrophilic linear polyether-polyurethane; and hydrophilic linear polyether-polyurethanes for use in such electrodes and devices
04/21/1982EP0049951A2 Device and method for measuring carburization in furnace tubes
04/20/1982US4326200 Gas detecting and measuring apparatus
04/20/1982US4326166 Correcting circuit for differential pick-up, comprising digital means
04/20/1982US4325797 Membrane mounting method and membrane-enclosed amperometric cell
04/20/1982US4325796 Vertical gel slab electrophoresis apparatus and method therefor
04/20/1982CA1122274A1 Improved device for detecting and measuring hydrogen gas concentrations in a fluid
04/15/1982WO1982001251A1 Sensing circuit
04/14/1982EP0049264A1 Apparatus for measuring the partial pressure of oxygen and of a gas which in aqueous solution generates an acid or a base
04/13/1982US4325060 Floating water detector
04/13/1982US4325029 Alkali ionization detector
04/13/1982US4325028 Examination apparatus for milk drawn from quarter mammae of a milk cow
04/13/1982US4325026 Plural coil eddy current mapping probe
04/13/1982US4325025 Automated channel doping measuring circuit
04/13/1982US4324761 Detection of leakage or measurement of concentration
04/13/1982US4324760 Polycrystalline titanium dioxide sandwiched between metal films
04/13/1982US4324680 Silver-silver chloride electrode and manufacturing method thereof
04/13/1982US4324632 Electrochemical
04/13/1982US4324621 Method and apparatus for controlling the quality of electrolytes
04/13/1982US4324256 Electrode device
04/13/1982US4324218 Air-fuel ratio detecting system
04/13/1982CA1121879A1 Method and means for temperature compensation in exhaust gas sensors
04/13/1982CA1121873A1 Detection device
04/13/1982CA1121861A1 Sulfide monitoring systems
04/07/1982EP0048955A2 Freon gas detecting element
04/06/1982US4323849 Coulometer
04/06/1982US4323843 Magnetic contamination detector
04/06/1982US4323440 Oxygen sensor with protective shield and porous air filter
04/06/1982US4323364 Method of and apparatus for examining substances and mixtures of substances
04/06/1982US4323092 Apparatus and process for detecting free chlorine
04/06/1982US4322968 Temperature compensated plug-in type oxygen detector for exhaust gas
04/06/1982CA1121459A1 Combined .sub.2/combustibles solid electrolyte gas monitoring device
04/01/1982WO1982001071A1 Water purity measurement
03/1982
03/31/1982EP0048361A2 Three phase eddy current instrument
03/30/1982US4322683 Control apparatus for eddy current non-destructive testing using a digital compensating circuit
03/30/1982US4322680 Chemically sensitive JFET transducer devices utilizing a blocking interface
03/30/1982US4322678 Identification of materials using their complex dielectric response
03/30/1982US4322629 Mass spectrograph
03/30/1982US4322383 Gas component detection apparatus
03/30/1982US4322278 Gas detection unit
03/30/1982US4321886 Apparatus for controlling toner concentration
03/30/1982CA1121001A1 Halide electrode
03/24/1982EP0048090A2 Substrate specific galactose oxidase enzyme electrodes
03/24/1982EP0047898A2 Electrochemical sensor to detect reducing gases in air, in particular carbon monoxide, hydrazine and hydrogen
03/24/1982EP0047843A1 Current control circuit arrangements
03/23/1982US4321577 Integral humidity sensor/heater configurations
03/23/1982US4321545 Carbon dioxide measurement system
03/23/1982US4321544 Method and improved apparatus for obtaining temperature-corrected readings of ion levels and readings of solution temperature
03/23/1982US4321534 Magnetic particle testing procedure involving pre-coating with a hydrophobic coating
03/23/1982US4321322 Pulsed voltammetric detection of microorganisms
03/23/1982US4321163 Lithium nitride of increased conductivity, method for its preparation, and its use
03/23/1982US4321122 Apparatus for forming electrical contact with an analysis slide
03/23/1982US4321121 Electrophoretic technique for separating lactate dehydrogenase isoenzymes and improved electrophoretic gel for use therein
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