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)
09/1982
09/15/1982EP0059841A2 Electrochemical gas analyser
09/15/1982EP0059726A1 Water purity measurement.
09/14/1982US4349429 For separation of colloidal and macromolecular cellular particles
09/14/1982US4349426 Anion sensing electrode
09/14/1982US4348886 Vacuum deposition of aluminum on an integrated circuit, measurement of resistivity or resistance
09/14/1982CA1131803A1 Thermionic detector
09/14/1982CA1131707A1 Method and apparatus for detecting chlorine and its compounds
09/14/1982CA1131706A1 Button electrode
09/14/1982CA1131439A1 Moisture-responsive resistor element
09/08/1982EP0059636A1 Apparatus for determining the presence of combustible constituents in a mixture
09/08/1982EP0059557A2 Method and apparatus for measuring the concentration of gases
09/08/1982EP0059512A2 Improvements in and relating to testing coins
09/08/1982EP0059511A2 Improvements in and relating to testing coins
09/08/1982EP0059222A1 Oxygen level sensor for molten metal
09/07/1982US4348635 Detecting and measuring the position of a break in solid formations by measuring the capacitance of an enlongated element embedded therein
09/07/1982US4348632 Servosystem operating about noise component error signal
09/07/1982US4348269 Carrier conveying mechanism for electrophoretic apparatus
09/07/1982US4347732 Gas monitoring apparatus
09/07/1982CA1131310A1 Device for performing measurements on fluids directly in the sample container
09/02/1982WO1982002946A1 Device for photometric scanning of gels
09/01/1982EP0059111A2 Photoionizer
09/01/1982EP0058898A1 Oxygen sensing element formed as laminate of thin layers on substrate provided with heater and lead wires
09/01/1982EP0058897A1 Oxygen sensing element having barrier layer between ceramic substrate and solid electrolyte layer
09/01/1982EP0058879A1 Test method for the manufacturing of electric windings, for example for transformers, and apparatus for the use of the method
08/1982
08/31/1982US4347622 Signature surveillance of nuclear fuel
08/31/1982US4347550 Sensor detector element for an electrical hygrometer
08/31/1982US4347495 Method of detecting oxygen and an oxygen sensor therefor
08/31/1982US4347114 Flat thin film type oxygen sensor
08/31/1982US4347113 Oxygen content exhaust gas sensor, and method of its manufacture
08/31/1982US4346611 Insertion regulator for pressurized pipelines
08/31/1982US4346585 Gas detector
08/31/1982CA1130707A1 Method of processing and inspecting steel billets
08/25/1982EP0058337A2 Process for predicting oxygen precipitation in semiconductor wafers
08/24/1982US4346055 Automatic ignition system for a flame ionization detector
08/24/1982US4345985 Method of producing solid electrolyte oxygen-sensing element of laminated structure
08/24/1982US4345562 Method and apparatus for regulating the fuel-air ratio in internal combustion engines
08/24/1982US4345469 Air tunnel device for thermohygrometer
08/24/1982US4345465 Probe for measuring flow rate and/or temperature of a flowing medium
08/24/1982US4345459 Sensing device
08/24/1982CA1130378A1 Ion selective field-effect sensor
08/19/1982WO1982002718A1 High impact compositions containing polycyano norbornenes
08/18/1982EP0058102A1 Method of making a capacitance humidity sensor with a thin dielectric
08/18/1982EP0057899A2 Method of operating an exhaust gas sensor for an internal combustion engine and exhaust gas sensor
08/18/1982EP0057728A1 Moisture-sensitive element, moisture-sensitive material and manufacturing method for same
08/17/1982US4345301 Capacitive humidity transducer
08/17/1982US4345205 Finish monitor
08/17/1982US4345154 Bias-compensated, ionization sensor for gaseous media and method for attaining proper bias for same
08/17/1982US4344904 Sintering method of zirconia
08/17/1982US4344815 Heat treatment, electrical resistance
08/17/1982US4344317 Air-fuel ratio detecting system
08/17/1982US4344293 Apparatus responsive to the amount of refrigerant flow in a refrigerant flow in a refrigerant circulating system
08/17/1982CA1129959A1 Perchloroethylene gas sensor
08/17/1982CA1129958A1 Electrochemical sensor for measuring relative concentrations of reactive species in a fluid mixture
08/17/1982CA1129806A2 Microelectrophoretic apparatus and process
08/17/1982CA1129791A1 Respiratory gas moisture separator system for mass spectrometer monitoring systems
08/11/1982EP0057393A1 Probe for measuring partial pressure of oxygen
08/10/1982US4344062 A semiconductor element of titanium dioxide and vanadium pentoxide
08/10/1982US4344035 Method and apparatus for determination of changes in the surface charge of materials
08/10/1982US4344030 Remote detector of flaws in surfaces using micro-waves
08/10/1982US4343993 Scanning tunneling microscope
08/10/1982US4343991 Sample detector
08/10/1982US4343782 Cytological assay procedure
08/10/1982US4343768 Electroconductivity, dielectrics, multilayer, recesses, catalyst
08/10/1982US4343767 Chromatography apparatus with electrochemical detector having carbon-black containing working electrode
08/10/1982US4343688 Method of making humidity sensors
08/10/1982CA1129499A1 Device for measuring the emission of gaseous inorganic fluorine or chlorine compounds
08/05/1982WO1982002600A1 Improved electrophoretic technique for separating lactate dehydrogenase isoenzymes and improved electrophoretic gel for use therein
08/05/1982WO1982002599A1 Improved electrophoretic technique for separating serum proteins and improved electrophoretic gel for use therein
08/05/1982WO1982002598A1 Control circuit for a humidity sensor
08/05/1982WO1982002500A1 Improved electrophoretic gel for separating isoenzymes
08/04/1982EP0057076A1 Apparatus for detecting and measuring trace gases in air or other gaseous background
08/04/1982EP0057068A1 Improvements in or relating to non-destructive testing apparatus
08/04/1982EP0056837A2 Electrochemical sensing element for oxygen measurement in gases
08/03/1982US4342964 Apparatus for electrochemical measurements
08/03/1982US4342962 Method for measuring coercivity in magnetic materials
08/03/1982US4342633 Oxygen sensor
08/03/1982US4342628 Electrolytic cell with improved wire cathode
08/03/1982US4342616 Technique for predicting oxygen precipitation in semiconductor wafers
08/03/1982US4342283 Developing apparatus for electrostatic duplicator
08/03/1982CA1129003A1 Compensation of sensor voltage for reference potential variation
08/03/1982CA1129000A1 Exhaust gas oxygen sensor and electrical connector arrangement
08/03/1982CA1128999A1 Halide ion-selective devices
08/03/1982CA1128963A1 Process for the continuous chlorination of olefins in the liquid phase and an apparatus for carrying out the process
08/03/1982CA1128772A1 Electrical measurement of fluid void fraction for fluid having capacitive and resistive conductive components
07/1982
07/28/1982EP0056752A1 Titania oxygen sensor with chrome oxide compensator
07/28/1982EP0056585A2 Gas sensor having lead wires extending in insulating and hermetically sealed holder
07/28/1982EP0056424A1 Method and apparatus for determining the boiling point of brake fluids
07/27/1982US4341997 Magnetic particle inspection process useable with simultaneous illumination by ultra-violet and white light
07/27/1982US4341114 Apparatus for burnoff of a resistor, in particular of a hot wire in an air flow rate meter of an internal combustion engine
07/27/1982US4341113 Inspection system for heat exchanger tubes
07/27/1982US4341108 Mass flow-dependent gas analyzer with through-flow control during low pressure operation
07/27/1982CA1128675A1 Humidity detecting resistor porcelain element and humidity detecting apparatus using the element
07/27/1982CA1128610A1 Ceramic element sensor
07/21/1982EP0056339A1 A method of producing a stannic oxide type gas-detecting device
07/21/1982EP0056283A1 Ion sensor
07/21/1982EP0056178A1 Electrode for living bodies
07/21/1982EP0056175A1 Ion-permeable composite membrane and its use in selective separation
07/20/1982US4340615 Apparatus for analysis of absorbed gases
07/20/1982US4340458 Electrode for catalytically promoting electrochemical oxidation of biological fluids
07/20/1982US4340457 Ion selective electrodes
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