Patents
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
03/1992
03/04/1992CN1015741B Multivariant oxide ceramics humidity element
03/03/1992US5093623 Method for determining electrical anisotrophy from radial resistivities in cylindrical core samples of porous rock
03/03/1992US5093571 Method and device for analyzing gas in process chamber
03/03/1992US5093268 Apparatus for conducting a plurality of simultaneous measurements of electrochemiluminescent phenomena
03/03/1992US5092980 Measuring apparatus for detecting gases
03/03/1992US5092973 Optical analyzer
03/03/1992US5092972 Field-effect electroosmosis
03/03/1992US5092219 Selective decomposition of nitrite esters and nitramines
03/03/1992US5092218 Selective detection of explosives vapors
03/03/1992US5092217 Method of calibrating a vapor detector
03/03/1992US5092157 Vapor collector/desorber with metallic ribbon
03/03/1992US5092156 Vapor collector/desorber with tube bundle and metal foil
03/03/1992US5092155 High speed detection of vapors of specific compounds
03/03/1992CA1296769C Apparatus for monitoring dielectric constant
03/03/1992CA1296546C Multiple chemically modulated capacitance determinations
03/01/1992WO1992004630A1 Analytical method
03/01/1992CA2090699A1 Analytical method
02/1992
02/26/1992EP0472398A1 Electrode for measuring pH and method for manufacturing the same
02/26/1992EP0472131A1 Method for determining the concentration of a component in a gas mixture containing several components by measuring thermal conductivity
02/26/1992EP0471986A2 Quantitative analysis method and its system using a disposable sensor
02/26/1992EP0471949A1 Situ sample pretreatment in electrophoresis capillary
02/26/1992EP0471684A1 Circuit and process for measuring a value affecting the capacitance-voltage characteristic of a capacitive component.
02/26/1992EP0285628B1 Method for determination of total carbonate content especially in biological fluids
02/26/1992CN2097406U Sensor for physiology monitoring of double-shell kinds of living things
02/26/1992CN2097405U Relative hygrometer with semiconductor
02/26/1992CN1059032A Ph meter operated with two keys
02/26/1992CN1059029A Method and device for checking thickness and cohesion of interface of duplex tube
02/26/1992CN1015666B System and method for detecting contaminanis in steam power generating system
02/26/1992CN1015664B Moisture sensitive sensor
02/26/1992CN1015663B Apparatus and methods for sensing fluid components
02/25/1992US5091704 Oscillator having resonator coil immersed in a liquid mixture to determine relative amounts of two liquids
02/25/1992US5091698 Circuit for measuring the internal resistance of a lambda probe
02/25/1992US5091696 Metallic coating measuring method and apparatus
02/25/1992US5091652 Laser excited confocal microscope fluorescence scanner and method
02/25/1992US5091317 Ph or electroconductivity measurement
02/25/1992US5091141 Device for inserting and positioning a tool inside a heat exchanger and use of this device
02/25/1992US5090387 Method and arrangement for checking the operational capability of an exhaust-gas probe heater and the supply system thereof
02/25/1992US5090232 Method and apparatus for detecting odors
02/25/1992CA1296387C Method for determining biaxial stresses in ferromagnetic materials
02/25/1992CA1296294C Combination gel enclosure and upper buffer chamber for use in vertical gel slab electrophoresis
02/20/1992WO1992002811A1 Variable characteristic rotating eddy current probe
02/20/1992WO1992002810A1 Control circuit for variable characteristic rotating eddy current probe
02/20/1992WO1992002788A1 Liquefied gas metering system
02/20/1992DE4025875A1 Electronic circuit measuring combustible components of gas - uses catholytic temp.-dependent detector resistor and non-catholytic temp.-dependent compensation resistor
02/20/1992CA2088784A1 Liquefied gas metering system
02/19/1992EP0471556A1 Flexible delivery system for a rotatable probe
02/19/1992EP0471519A1 Multiple optical fiber event sensor and method of manufacture
02/19/1992EP0471511A2 Cantilever type probe and information processing device equipped with said probe
02/19/1992EP0471330A1 PH-measuring device
02/19/1992EP0471269A1 Chemical-sensitive semiconductor device
02/19/1992EP0471067A1 Method and apparatus for the determination of dissolved carbon in water
02/19/1992CN2096759U Magnetizing apparatus for wheel flaw detection
02/19/1992CN2096758U Clock caver type plasma probe diagnose equipment
02/18/1992US5089783 Capacitive fuel composition sensor with padding capacitor
02/18/1992US5089781 Electromagnetic conductivity meter and a conductivity measuring method
02/18/1992US5089780 Oil quality monitor sensor and system
02/18/1992US5089776 Apparatus for detecting defects in a moving steel strip with a magnetizing yoke and a sensor placed on opposite sides of the strip
02/18/1992US5089702 Icr ion trap
02/18/1992US5089294 Preparation of conductive films
02/18/1992US5089133 Waterproof type oxygen sensor
02/18/1992US5089113 Measurement and control of exhaust gas recirculation with an oxygen pumping device
02/18/1992US5089112 Measuring, detection, monitoring, diagnosis
02/18/1992US5089111 Separation on the basis of molecular size
02/18/1992US5089106 High performance capillary gel electrophoresis
02/18/1992US5089103 Electrophoresis capillary with agarose
02/18/1992US5089099 Field amplified polarity switching sample injection in capillary zone electrophoresis
02/18/1992US5088820 Laser enhanced ionization detector for Raman spectroscopy
02/18/1992US5088690 Electrode holder for immersion-type, flow-type and attachment-type measuring systems in analytical chemistry
02/18/1992US5088314 Gas detecting method and system
02/18/1992CA1296061C Magnetic bridge devices
02/14/1992CA2023376A1 Methods for roof, wall and floor leak detection
02/14/1992CA2023161A1 Method and system for measuring the corrosion properties of specimens
02/13/1992DE4025575A1 Verfahren und vorrichtung zur bestimmung der lokalen mittleren dichte eines materialstranges A method and apparatus for determining the local average density of a string-like material
02/13/1992DE4025093A1 Temperature compensated fluid conductivity measuring circuit - uses fluid filled pipe section as coupling conductor between two annular cores
02/12/1992EP0470818A2 Calibration cuvette
02/12/1992EP0470744A2 Electrochemical force sensor
02/12/1992EP0470649A2 Method and apparatus for electrochemical measurements
02/12/1992EP0470625A2 Gaseous carbon dioxide detection sensor
02/12/1992EP0470521A2 Measurement of semiconductor parameters at cryogenic temperatures using a spring contact probe
02/12/1992EP0470473A1 Gas sensor
02/12/1992EP0470370A1 Information detection apparatus and method
02/12/1992EP0470368A2 Method and circuit for inductive measuring of conductivity of liquids
02/12/1992EP0470367A2 Device for measuring the conductivity of fluids
02/12/1992EP0470345A1 Device and process for continuously measuring water soluble electric conducting dust emissions in water vapour containing waste gases
02/12/1992EP0470290A1 Electrochemical enzymatic sensor
02/12/1992EP0470250A1 Moisture sensor
02/12/1992EP0470164A1 Analytical apparatus
02/12/1992CN1058652A Moisture sensor of lithium stannate thick film ceramic and making method thereof
02/11/1992US5087952 Lipid-protein compositions and articles and methods for their preparation
02/11/1992US5087886 Rain-activated sprinkler shut-off system
02/11/1992US5087883 Differential conductivity meter for fluids and products containing such meters
02/11/1992US5087815 High resolution mass spectrometry of recoiled ions for isotopic and trace elemental analysis
02/11/1992US5087814 Method and apparatus for counting charged particles
02/11/1992US5087574 Fluid component detection method with feedback
02/11/1992US5087480 Method for manufacturing a moisture permeable electrode in a moisture sensor
02/11/1992US5087338 Continuous process; improved resolution
02/11/1992US5087337 Fluorescent tag for sugar electrophoresis
02/11/1992US5087275 Electrochemical sensor having microcavities
02/11/1992CA2048892A1 Multiple optical fiber event sensor and method of manufacture
02/11/1992CA2048870A1 Calibration cuvette