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