| Patents for G01N 29 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object (28,925) |
|---|
| 07/25/1991 | WO1991010948A1 System for controlling the position of sensor elements |
| 07/25/1991 | WO1991010904A1 Acoustic emission monitoring of wood chip refiners |
| 07/24/1991 | CN2081536U Portable rail flaw detector |
| 07/23/1991 | US5033321 Method and apparatus for measuring the degree of mixing in a turbulent liquid system |
| 07/23/1991 | US5033304 Method and apparatus for laser ultrasonic characterization of coated fibers |
| 07/23/1991 | US5033286 On-line instrument for measuring effective partial pressure of dissolved gases in a liquid |
| 07/17/1991 | CN2081097U Automatic flaw detector for pipe billet |
| 07/16/1991 | US5031627 Method and apparatus for characterizing reflected ultrasonic pulses |
| 07/16/1991 | US5031625 Received ultrasonic phase matching circuit |
| 07/16/1991 | US5031467 Pulse echo technique for detecting fluid flow |
| 07/16/1991 | US5031458 Portable ultrasonic inspection probe for laminated structures |
| 07/16/1991 | US5031457 System for nondestructively determining composite material parameters |
| 07/16/1991 | US5031456 Method for the detection of voids and corrosion damage by thermal treatment |
| 07/16/1991 | CA1286392C Surface acoustic wave gas flow rate sensor with self- heating feature |
| 07/16/1991 | CA1286370C Ultrasonic method and apparatus for spot weld control |
| 07/11/1991 | WO1991010131A1 Process for the acoustic examination of monoliths for damage and device for implementing the process |
| 07/09/1991 | US5031154 Three-dimensional object imaging method and system |
| 07/09/1991 | US5030874 Ultrasonic probe |
| 07/09/1991 | US5029587 Ultrasonic diagnostic apparatus for ophthalmology |
| 07/09/1991 | US5029477 Integrity test for acoustic bearing defect detector |
| 07/09/1991 | US5029475 Measuring spatial distribution of spacings between point scatterers |
| 07/03/1991 | CN1013061B Interpolation type apparatus for detection of defects by ultrasonic waves |
| 07/03/1991 | CA2022926A1 Container wall measuring apparatus and method |
| 07/02/1991 | US5028381 Device for the ultrasonic non-destructive testing of a circular weld inside a steam generator tube |
| 07/02/1991 | US5027659 Ultrasonic imaging device in which electroacoustic transducers are disposed on a convex probe |
| 06/27/1991 | WO1991009306A1 Selective gas detection by field separation and sound velocity measurement: o2 detection |
| 06/27/1991 | WO1991009284A1 Ultrasonic mass flow meter |
| 06/26/1991 | EP0433385A1 Method and apparatus for the detection of a gas using photoacoustic spectroscopy. |
| 06/26/1991 | EP0433316A1 Process and device for monitoring machining of a workpiece. |
| 06/25/1991 | US5025665 Non-contacting on-line paper strength measuring system |
| 06/23/1991 | WO1991010132A1 A gas detection system |
| 06/23/1991 | CA2071988A1 Gas detection system |
| 06/20/1991 | DE4040049A1 Ultrasonic material property measuring method - monitoring surface and reflected surface vibrations while varying distance between acoustic lens and material surface |
| 06/18/1991 | US5025215 Support equipment for a combination eddy current and ultrasonic testing probe for inspection of steam generator tubing |
| 06/18/1991 | US5024094 Ultrasonic imaging system of bonding zone |
| 06/18/1991 | US5024093 Fan-shape scanning ultrasonic flaw detecting apparatus |
| 06/18/1991 | US5024091 Nonhomogeneous materials |
| 06/12/1991 | EP0175685B1 Rotary ultrasonic scan head including fluid drive |
| 06/12/1991 | CN1012849B Automatic scanning vevice for ultrasonic inspection of articles |
| 06/12/1991 | CN1012848B Method and apparatus for detecting defects of pipes and tubes in post shape |
| 06/12/1991 | CN1012847B Sonic apparatus and method for detecting presence of gaseous substance in closed space |
| 06/12/1991 | CA2031944A1 Pulse echo technique for detecting fluid flow |
| 06/11/1991 | US5023550 Rotating head mechanism of rotary type AC magnetic flux leakage flaw detector |
| 06/11/1991 | US5022266 Passive acoustics process to monitor fluidized bed flow |
| 06/09/1991 | CA2026017A1 Means and method for nonuniform poling of piezoelectric transducers |
| 06/05/1991 | EP0430859A1 Ultrasonic gas measuring device |
| 06/05/1991 | EP0430450A2 2-D phased array ultrasound imaging system with distributed phasing |
| 06/05/1991 | EP0429799A1 Ultrasound imaging method and apparatus |
| 06/05/1991 | EP0429446A1 Non-destructive evaluation of ropes by using transverse vibrational wave method |
| 06/05/1991 | EP0239609B1 A composite substrate, intended for an apparatus for quantitative detection of a component present in a gas or liquid |
| 06/04/1991 | USH924 Signal analysis in leaky lamb wave nde technique |
| 06/04/1991 | US5020371 Device for the precise transverse positioning for a member displaceable along a rail of a railway track with respect to said rail |
| 06/02/1991 | WO1991008477A2 Apparatus for automatically and non-destructively determining the class of standardized mechanical properties of a sample of hygroscopic material |
| 06/02/1991 | CA2045462A1 Apparatus for automatically and non-destructively determining the class of standardized mechanical properties of a sample of hygroscopic material |
| 05/31/1991 | CA2031115A1 Ultrasonic gas measuring device |
| 05/30/1991 | WO1991007657A1 Method and apparatus for measurement and imaging of tissue compressibility or compliance |
| 05/30/1991 | WO1991007646A2 Method and apparatus for determining particle size distribution and concentration in a suspension using ultrasonics |
| 05/29/1991 | EP0429302A1 Ultrasonic testing method for detecting flaws of balls and apparatus for said method |
| 05/28/1991 | US5018988 Electrical contact mechanism for ultrasonic transducers on fasteners |
| 05/28/1991 | CA1284530C Method and apparatus for measuring parameters of solid phase of slurries |
| 05/23/1991 | CA2003672A1 Bidirectional beamspread blocks |
| 05/22/1991 | EP0428443A1 Device and probe to measure the variation of distance between the two faces of a material layer by means of ultrasounds |
| 05/21/1991 | US5016475 Wiredrawing apparatus including an ultrasonic flaw detector |
| 05/21/1991 | US5016474 Measuring the thickness |
| 05/21/1991 | US5016469 Fluid viscoelastic test apparatus and method |
| 05/15/1991 | EP0427146A1 Oscillation degree measuring apparatus |
| 05/15/1991 | CN1012628B Method and apparatus for determing resonant frequency of turbing blade made of material not responsive to magnetic field |
| 05/14/1991 | US5014556 Acoustic emission simulator |
| 05/14/1991 | US5014547 Apparatus for determining the surface roughness of a material |
| 05/08/1991 | EP0426099A2 Ultrasonic transducer |
| 05/08/1991 | EP0425765A1 Ultrasonic method for detecting cracks |
| 05/08/1991 | EP0258438B1 Ultrasonic converter |
| 05/08/1991 | CN2076676U Vertical incidence measurable angle ultrasonic transverse wave transducer |
| 05/07/1991 | US5012668 Inclined electrode surface acoustic wave substance sensor |
| 05/02/1991 | WO1991005999A2 Apparatus for assessing a particular property in a medium |
| 05/02/1991 | WO1991005991A1 Impact calibration tool |
| 05/02/1991 | WO1991005618A1 Agricultural commmodity condition measurement |
| 05/02/1991 | EP0424744A1 Ultrasonic inspection apparatus |
| 05/01/1991 | CN1051087A Small sized wide-band sound-emission sensing element |
| 05/01/1991 | CN1051086A Automatic defect detection technology using electromagnetic ultrasonic |
| 05/01/1991 | CN1012530B Method and apparatus for detecting and measuring elastic anisotropy |
| 04/30/1991 | US5010885 Ultrasonic echograph with controllable phase coherence |
| 04/25/1991 | DE4031895A1 Programmable receiver for material defect detection and analysis - uses A=D converter, time and amplitude processor with single channel and multiple peak processing unit |
| 04/25/1991 | DE4003728C1 Uneven rotation detector for transport rollers in tunnel furnace - has measuring units for devices assigned to rollers to deliver magnetic, EM, acoustic or optical signals |
| 04/25/1991 | DE3935432A1 Non-destructive tester for conductive workpieces - has electromagnet system movable over workpiece and cooling system |
| 04/24/1991 | EP0424245A2 Method and apparatus for characterizing reflected ultrasonic pulses |
| 04/23/1991 | US5010503 Apparatus for acoustic-emission inspection of articles |
| 04/23/1991 | US5009104 Ultrasonic cure monitoring of advanced composites |
| 04/23/1991 | US5008996 Machine for remotely lining the inside of a heat exchanger tube end with a sleeve |
| 04/18/1991 | WO1991005250A1 Ultrasonic inspection of seal integrity of bond lines in sealed containers |
| 04/18/1991 | WO1991005249A1 Improvements in or relating to testing or working of materials |
| 04/18/1991 | DE3934250A1 Ultrasonic wave investigation system for particle detection - has several transmitters and echo receivers, computer controlling frequency and bandwidth and detects small particles and motions |
| 04/18/1991 | DE3934249A1 Arrangement for conducting investigation using ultrasonic waves - has computer-controlled transmitters, receivers influenced by fine adjusters, phase shifters, and makes phase information available |
| 04/17/1991 | EP0422546A2 Electrical contact mechanism for ultrasonic transducers on fasteners |
| 04/17/1991 | EP0422145A1 Device for determining the presence of substances floating on water. |
| 04/17/1991 | CN2075334U Infrasonic detector |
| 04/16/1991 | US5007291 Ultrasonic inspection apparatus with centering means for tubular members |
| 04/16/1991 | CA1283199C Method of nondestructive quality control of carbon articles |
| 04/10/1991 | EP0421279A1 Ultrasonic diagnostic apparatus with selective focussing patterns |
| 04/10/1991 | EP0420895A1 Measurement of moisture content and electrical conductivity |