Patents
Sitemap › G01 - Measuring; Testing › G01N - Investigating or analysing materials by determining their chemical or physical properties › G01N 21 - Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
Patents for G01N 21 - Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light (181,396)
10/1992
10/26/1992CA2066944A1 Chemiluminescent lighting element
10/25/1992WO1992020034A1 Linear image data processing device for the generatrices of a workpiece having a rotational axis
10/25/1992CA2071851A1 Device for processing the linear image data of a part having a revolution axis
10/25/1992CA2066884A1 Device for photometrically determining the coagulation behaviour of blood, blood plasma or the like
10/23/1992CA2065485A1 Method and apparatus for measuring prevailing weather and meteorological visibility
10/22/1992DE4211437A1 Flow-through cell ensuring laminar flow - for continuous measurement of particles suspended in solvents
10/22/1992DE4112847A1 Vorrichtung zum betreiben eines regendetektors Apparatus for operating a rain detector
10/22/1992DE4112691A1 Suction cell esp. for spectrophotometer - contg. measurement chamber perpendicular to radiation travel direction and sealed by windows on cell, avoiding contamination errors
10/22/1992DE4112528A1 Spectrophotometer used as UV detector in HPLC - has light guide between light source and photodetectors, and sealing partition wall between light source and light guide
10/21/1992EP0509849A2 Measuring the cross-sectional distribution of the refractive index of an optical waveguide
10/21/1992EP0509848A2 Measuring the cross-sectional distribution of the refractive index of an optical waveguide
10/21/1992EP0509847A2 Measuring the cross-sectional distribution of the refractive index of optical waveguides
10/21/1992EP0509791A1 Microbial monitoring device
10/21/1992EP0509520A2 Apparatus and method for color measurement network message log structure
10/21/1992EP0509249A2 Method and apparatus for analysing gases
10/21/1992CN2119656U Measurer for liquid transparence
10/21/1992CN1065525A Light-scattering chromatography for non-destructive test of transparent materials and apparatus thereof
10/21/1992CN1018765B Light fibre humidity transducer
10/20/1992US5157762 Method and apparatus for providing a three state data base for use with automatic optical inspection systems
10/20/1992US5157678 Laser safe housing for a particle monitor in vacuum pump lines
10/20/1992US5157463 Method for determining solder quality
10/20/1992US5157457 Calorimetric fiber optic chemical sensor
10/20/1992US5157455 Apparatus for the calibration and quality control of a spectrophotometer
10/20/1992US5157454 Differential refractometer
10/20/1992US5157453 Liquid content detecting device for alcohol regular gasoline and premium gasoline fuel mixture
10/20/1992US5157452 Method and apparatus for liquid content detection with refractive index and temperature signal mixing
10/20/1992US5157440 Toner density sensing device for image forming equipment
10/20/1992US5157266 Method and device for testing transparent sheets
10/20/1992US5157262 Sensor element for determination of concentration of substances
10/20/1992US5157261 Detection device for high explosives
10/20/1992US5157257 Mid-infrared light hydrocarbon DIAL LIDAR
10/20/1992US5157254 Reflective electro-luminescent measurement adapter for quality control of baked and fried goods
10/20/1992US5157253 Envelope reflectance meter evaluating print contrast
10/20/1992US5157252 Photometer arrangement with scattered light trap
10/20/1992US5156976 For spectrophotometric assays of fluid analytes; having shell with surfaces to propagate radiation between by internal reflection
10/20/1992CA1309058C Laser-excitation fluorescence detection electrokinetic separation
10/20/1992CA1309017C Assay techniques
10/20/1992CA1308938C Heterodyne michelson interferometer for polarization measurements
10/19/1992WO1992018855A1 Method of cleaning reflector mirror in optical dew point meter and an optical dew point meter equipped with a cleaning device
10/19/1992CA2085612A1 Method of cleaning reflector mirror in optical dew point meter and an optical dew point meter equipped with a cleaning device
10/17/1992WO1992018889A1 Distributed fiber optic sensor using clad material light backscattering
10/17/1992CA2084401A1 Distributed fiber optic sensor using clad material light backscattering
10/17/1992CA2064540A1 Method and apparatus for gas analysis
10/15/1992WO1992017767A1 Method for quantitative determination of fat in an emulsion which contains fat particles
10/15/1992WO1992017766A1 Method for quantitative determination of fat in an emulsion which contains fat particles
10/15/1992WO1992017765A1 Method and apparatus for glucose concentration monitoring
10/15/1992WO1992017754A1 System for monitoring arc sensor protecting window
10/15/1992WO1992017388A1 Gemstone color communication kits
10/15/1992WO1992014177A3 Planar and other waveguide refractive index sensors using metal cladding
10/15/1992WO1992012412A3 Device for measuring the ph of a target, method for using such device and application thereof
10/15/1992DE4211985A1 Automatically wound bobbin test - checks yarn end and bobbin shape and weight in sequence
10/15/1992DE4210304A1 Birefringence determn. esp. by on=line process - by measuring intensities of several light beams of different polarisation directions and calculating light propagation retardation in sample from measured data etc.
10/15/1992DE4125036C1 Fibre=optic sensor for measuring refractive index of liq. or gas - measures reflection at free end of optical fibre coated with material of high refractive index using lock-in amplifiers
10/15/1992DE4111774A1 Photothermal interference spectrometer for measuring electromagnetic radiation absorption - has heating beam, passing through heated medium and interfering with direct beam
10/14/1992EP0508828A2 Sample observation apparatus and system, and method therefor particularly for biological samples
10/14/1992EP0508583A2 Absolute gas refractometer
10/14/1992EP0508558A2 Apparatus for ellipsometric investigations of materials
10/14/1992EP0508548A2 Method for inspecting the dimensional stability of medical ampoules
10/14/1992EP0508257A2 Scanning microspectroscope
10/14/1992EP0508182A2 Method and apparatus for measuring the optical absorbance of samples with automatic baseline correction
10/14/1992EP0507930A1 Measurement of color reactions by monitoring a change of fluorescence.
10/14/1992EP0507883A1 Thin-film spectroscopic sensor
10/14/1992CN2118983U Connected tube gas test tube
10/14/1992CN1065339A Method and apparatus for magnetic microparticulate based luminescrnce assay including plurality of magnets
10/14/1992CN1065337A Spectrosoopic analyzing method and system
10/13/1992US5155792 Low index of refraction optical fiber with tubular core and/or cladding
10/13/1992US5155628 Optical transmission spectrometer
10/13/1992US5155558 Method and apparatus for analyzing the appearance features of a surface
10/13/1992US5155552 Interferometric device for detecting and measuring the concentration of an absorbing gas, particularly in the infrared
10/13/1992US5155549 Method and apparatus for determining the physical properties of materials using dynamic light scattering techniques
10/13/1992US5155547 Power control circuit for inductively coupled plasma atomic emission spectroscopy
10/13/1992US5155546 Method for quantitative detection of organic materials in rocks and sediments using visible light spectra
10/13/1992US5155545 Method and apparatus for the spectroscopic concentration measurement of components in a gas mixture
10/13/1992US5155543 Adjustable flow cytometer
10/13/1992US5155372 Optical inspection system utilizing wedge shaped spatial filter
10/13/1992US5155367 Gas contamination-measuring apparatus for use with an ultraviolet-emitting laser source
10/13/1992US5155046 Fluorescent dyes as indicators; measuring intensity of wavelengths
10/13/1992US5154890 Ionophor-fluorophore bound to polymeric gel; complexing potassium, measuring intensity changes in radiation
10/13/1992US5154889 With temperature controlled incubator chamber for improved accuracy
10/13/1992US5154176 Liver function testing apparatus
10/13/1992CA2065668A1 Spectroscopically correlated light scanning microscopy
10/13/1992CA1308572C Measurement of moisture-stratified sheet material
10/08/1992DE4211741A1 Reflectometer for spectroscopic investigations, esp. of semiconductor material properties - has controller with goniometer, detector gain and test light wavelength control loops
10/07/1992WO1992017770A2 Dimensional inspection process of medical ampules
10/07/1992EP0507752A2 Apparatus for measuring and monitoring fluidodynamic parameters in two-phase mixtures
10/07/1992EP0507405A2 Analysis of drilling fluids
10/07/1992EP0507182A2 Atomic absorption spectroscopic analytic apparatus
10/07/1992EP0506828A1 Apparatus and method for use in determining the optical transmission factor or density of a translucent element
10/07/1992EP0506657A1 System for measuring velocity field of fluid flow utilizing a laser-doppler spectral image converter.
10/07/1992EP0404794B1 Atomic absorption spectrometer
10/07/1992EP0231390B1 Assembly for mounting light-emitting element and light-receiving element in photoelectric smoke sensor
10/07/1992CN1065141A Preparation of fresh-milk testing agent and its application
10/07/1992CN1018585B Testing tube of co2 gas
10/07/1992CN1018583B Device for inspecting region of hollow bodies
10/07/1992CN1018582B Optical-path arrangement for fluorescence testing and relevant equipment
10/07/1992CN1018581B Method of mineral dressing trace impurity in metal and its oxidate
10/06/1992US5153931 Fiber optic hydrogen sensor
10/06/1992US5153679 Apparatus and process for measuring light absorbance or fluorescence in liquid samples
10/06/1992US5153674 Semiconductor production control and/or measuring unit
10/06/1992US5153673 Pulsed flame analyzing method and detector apparatus for use therein
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