| Patents for G01N 22 - Investigating or analysing materials by the use of microwaves (3,952) |
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| 11/28/1990 | EP0399693A2 Diagnostic device |
| 11/27/1990 | US4972699 Method and apparatus for analysis by means of microwaves |
| 11/26/1990 | CA2017593A1 Method and device for measuring physical characteristics, detecting and identifying the fault zones of a piece, namely made of ligno-cellulosic material |
| 11/07/1990 | EP0395863A2 Aperture synthesized radiometer using digital beamforming techniques |
| 10/31/1990 | EP0395308A2 Apparatus and method for measuring properties of an object using scattered electromagnetic radiation |
| 10/30/1990 | CA1275588C Apparatus and process for object analysis by pertrubation of interference fringes |
| 10/24/1990 | CN2064507U Microwave leakage testers |
| 10/24/1990 | CN1046274A Microwave diagnostic instrument with archimedes spiral probe |
| 10/09/1990 | US4962384 Microwave antenna apparatus |
| 10/03/1990 | EP0389529A1 Device for electric characterization samples and application to the electric cartography of semiconductor samples of large surface area |
| 09/26/1990 | CN1045649A Discrimination method of solid material and its apparatus |
| 09/26/1990 | CN1045538A Sorting machine by separating one matter from solid mixture |
| 09/25/1990 | US4959614 Apparatus for determining microwave characteristics of superconductive materials using a resonant cavity and calibration waveguides |
| 09/07/1990 | WO1990010221A1 Method and system for determining impurities in a strip of non-metallic material, preferably rock-wool |
| 09/05/1990 | CN1045182A Imaging tester of flaws in plane-wave antenna |
| 09/05/1990 | CN1045181A Microwave transmission method for measuring penetration depth of superconducting materials |
| 08/29/1990 | EP0384593A1 Microwave water cut monitors |
| 08/23/1990 | WO1990009580A1 Apparatus and method for using microwave radiation to measure water content of a fluid |
| 08/23/1990 | WO1990009579A1 Measuring a fluid's water content by microwaves |
| 08/15/1990 | WO1990009578A1 Microwave scanning apparatus |
| 08/14/1990 | US4948975 Quantitative luminescence imaging system |
| 08/07/1990 | US4947129 Petroleum stream microwave watercut monitor |
| 08/07/1990 | US4947128 Co-variance microwave water cut monitoring means and method |
| 08/07/1990 | US4947127 Microwave water cut monitor |
| 07/26/1990 | DE4000515A1 Mikrowellenveraschungs- und analysegeraet, komponenten und verfahren Mikrowellenveraschungs- and analysegeraet, components and methods |
| 07/24/1990 | US4943778 Instrument for measuring high frequency characteristics of sheet-like materials |
| 07/19/1990 | DE4000925A1 Measuring water content of materials for wood, paper processing - by measuring change in speed of microwave signal passed through material via frequency modulation or noise correlation |
| 07/18/1990 | EP0377791A1 Method for the determination of the alcohol content and/or the calorific value of fuels |
| 07/17/1990 | US4942363 Apparatus and method for measuring two properties of an object using scattered electromagnetic radiation |
| 07/05/1990 | DE3938409A1 Universal sensor operating circuit - has generator, waveguide, output-coupling and antenna |
| 07/05/1990 | DE3938391A1 Sensor for the measurement of moisture-content - has generator, waveguide, output coupling and antenna, between generator and output coupling |
| 07/05/1990 | DE3938379A1 Test appts. for bottles - consists of microwave transmitter and receiver using slot-antennae high frequency oscillator and processor |
| 06/28/1990 | WO1990007110A1 Process and device for the continuous determination of the moisture content of a bulk material |
| 06/26/1990 | US4936529 Device for detecting defective wheels on rail cars |
| 06/13/1990 | EP0372992A2 Measurement apparatus and method utilizing microwave energy |
| 06/13/1990 | EP0372843A1 Petroleum stream microwave watercut monitor |
| 06/13/1990 | DE3941032A1 Measuring water content in any material, esp. solid - measuring change in phase rate of propagation of electromagnetic signal along open line in material |
| 06/12/1990 | US4933075 Sorting method and apparatus using microwave phase-shift detection |
| 06/09/1990 | CA2004953A1 Measurement apparatus and method utilizing microwave energy |
| 06/05/1990 | CA2003927A1 Petroleum stream microwave watercut monitor |
| 05/31/1990 | WO1990005908A1 Improved method and apparatus for microwave transient spectroscopy of deep levels in semiconductors |
| 05/30/1990 | EP0370891A1 Microwave propagating device for moving webs, especially textile webs |
| 05/30/1990 | EP0370033A1 Process and device for microwave analysis |
| 05/30/1990 | CN1042607A Measuring method of colloid content in latex and latex testing instrument by microwave |
| 05/29/1990 | CA1269762A1 Method and arrangement for the examination of electrically active impurities of semiconductor materials or structures |
| 05/23/1990 | EP0189414B1 Process for measuring the state changes induced by weather elements on traffic surfaces and apparatus for implementing such process |
| 05/15/1990 | US4924695 Apparatus for compressing a fluid sample to determine gas content and the fraction of one liquid composition in another |
| 05/09/1990 | EP0367267A2 Scanning tip for electromagnetic radiation |
| 04/19/1990 | WO1990004167A1 Composition monitor and monitoring process using impedance measurements |
| 04/17/1990 | US4918375 Reflectometric moisture meter for capillary-porous materials, especially for the soil |
| 04/05/1990 | WO1990003568A1 Determination of carbon in fly ash |
| 04/04/1990 | EP0362011A1 Method and apparatus for analysing a multi-phase flow in a hydrocarbon well |
| 04/03/1990 | US4912982 Non-perturbing cavity method and apparatus for measuring certain parameters of fluid within a conduit |
| 03/29/1990 | DE3929922A1 Microwave probe for moisture content measurement - contains material of dielectric constant similar to material to be measured, to increase accuracy |
| 03/21/1990 | EP0359336A2 Device for microwave transmission |
| 02/28/1990 | EP0355114A1 Device for measuring, at a plurality of points, the microwave field diffracted by an object. |
| 02/27/1990 | US4904928 Measurement apparatus and method utilizing multiple resonant modes of microwave energy |
| 02/20/1990 | US4902961 For analyzing a multi-phase liquid |
| 02/07/1990 | EP0354115A1 Microwave transceiver for displaying concealed objects |
| 02/07/1990 | EP0353884A2 Microwave moisture sensing arrangement |
| 01/23/1990 | US4896097 Apparatus for the examination of measuring gases by means of microwaves |
| 01/16/1990 | US4894603 Method and apparatus for analysis of gas by means of absorption frequency regulation |
| 01/09/1990 | CA1264353A1 Apparatus and method for sensing multiple parameters of sheet material |
| 12/26/1989 | US4890054 Apparatus and method for measuring physical quantities |
| 12/26/1989 | US4890053 Method and apparatus for detecting a missing object in a set of objects |
| 12/19/1989 | US4888547 Meter using a microwave bridge detector for measuring fluid mixtures |
| 12/06/1989 | CN2048974U Microwave detector for firer articals charging quality |
| 12/05/1989 | US4885527 Device for continuously measuring the rate at which fibers conducting or not conducting electricity are impregnated by a substance |
| 11/30/1989 | WO1989011660A1 Chemical analyzer |
| 11/02/1989 | EP0339873A1 Apparatus and method for measuring electric characteristics of material |
| 10/18/1989 | EP0337623A2 Method and apparatus for detecting the absence of an object from a set of objects |
| 10/10/1989 | US4873481 Microwave radiometer and methods for sensing atmospheric moisture and temperature |
| 10/04/1989 | EP0335767A1 Device for measuring the water content of skin |
| 10/04/1989 | EP0335288A2 A method to evaluate the homogenization of the properties across the silicon surface region of an oxidized silicon wafer |
| 09/12/1989 | US4866370 Material characterization |
| 09/12/1989 | US4866369 Waveguide structure for estimating the electromagnetic characteristics of a dielectric or magnetic material |
| 09/08/1989 | WO1989008248A1 Microwave spectrometer |
| 08/30/1989 | CN2043756U Measure for fault image with planar wave antenna |
| 08/29/1989 | US4862060 Microwave apparatus for measuring fluid mixtures |
| 08/24/1989 | WO1989007767A1 Microwave radiometer and methods for sensing atmospheric moisture and temperature |
| 08/02/1989 | CN2042199U Detecting head of microwave sensor for corn moisture tester |
| 08/02/1989 | CN1034431A Apparatus and method for measuring concentration of solution |
| 08/01/1989 | US4852395 Three phase fluid flow measuring system |
| 07/26/1989 | EP0325341A2 Material characterisation |
| 07/04/1989 | US4845422 For measuring distance |
| 06/20/1989 | US4841223 Method and apparatus for measuring fiber orientation anisotropy |
| 06/13/1989 | US4839588 Method for the examination of electrically active impurities of semiconductor materials or structures and measuring arrangement for carrying out the method |
| 06/01/1989 | WO1989004969A1 Device for electric characterization samples and application to the electric cartography of semiconductor samples of large surface area |
| 05/11/1989 | DE3805637A1 Method and device for the continuous measurement of the moisture of a fine-grained bulk material |
| 05/11/1989 | DE3737070A1 Device for detecting snowfall, rain or a deposit on a surface |
| 05/09/1989 | US4829233 Microwave probe |
| 04/25/1989 | US4825146 In a combine harvest |
| 04/11/1989 | US4820970 Apparatus and method for using microwave radiation to measure water content of a fluid |
| 03/15/1989 | EP0307261A1 Method and apparatus for the estimation of the electromagnetic characteristics of a dielectric or magnetic material |
| 03/14/1989 | US4812739 Apparatus and method for using microwave radiation to measure water content of a fluid |
| 03/09/1989 | DE3829008A1 Method for the measurement of the salt content of water layers on traffic surfaces and device for carrying out the method |
| 03/07/1989 | CA1250894A1 Method for the qualitative and quantitative determination of the hydrogen isotopes, protium, deuterium and tritium, and system for implementing the method |
| 02/21/1989 | US4805627 Method and apparatus for identifying the distribution of the dielectric constants in an object |
| 02/15/1989 | EP0303326A2 Apparatus for detecting unwanted liquid contamination in oil drums prior to their filling |
| 02/08/1989 | EP0302778A1 Device for continuously measuring the impregnation rate by a substance of electrically conductive or dielectric fibers |