| 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) |
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| 10/16/1991 | EP0451463A2 Multiple transducer selector |
| 10/16/1991 | EP0451375A2 Electrodynamic ultrasound-transducer |
| 10/16/1991 | EP0451306A1 Frequency-selective laminated ultrasound transducer |
| 10/16/1991 | EP0429446A4 Non-destructive evaluation of ropes by using transverse vibrational wave method |
| 10/16/1991 | EP0398930A4 System for nondestructively determining composite material parameters |
| 10/15/1991 | US5056368 Ultrasonic testing method |
| 10/15/1991 | US5056357 Acoustic method for measuring properties of a mobile medium |
| 10/15/1991 | CA1290845C On-line acoustic detection of bearing defects |
| 10/10/1991 | DE4011313A1 Verfahren zur messung der haerte oder elastischer materialeigenschaften unter last nach der ultraschall-kontakt-impedanz-methode Method for measuring the hardness or elastic material properties under load after ultrasound-contact impedance-method |
| 10/10/1991 | DE4010952A1 Verfahren und vorrichtung zur ultraschallpruefung von schweissnaehten zwischen kunststoffpackungen und abdeckfolien Method and apparatus for ultrasonic testing of schweissnaehten between plastic packaging and Cover |
| 10/09/1991 | EP0450868A2 Ultrasonic probe having a piezoelectric element |
| 10/09/1991 | EP0450814A1 Pipe inspection system |
| 10/09/1991 | EP0450716A2 Method and equipment for measuring firmness of fruits and vegetables |
| 10/09/1991 | EP0450667A2 Three dimensional imaging system |
| 10/09/1991 | EP0450334A2 Ultrasonic beam aiming apparatus and method for nondestructive testing |
| 10/09/1991 | CN2086416U Metal plate supersonic detecting vehicle |
| 10/09/1991 | CN1055239A Defect-detection robot for high-presure caldron |
| 10/08/1991 | US5054490 Ultrasonic densitometer device and method |
| 10/08/1991 | US5054321 Method and apparatus for measuring surface contour on parts with elevated temperatures |
| 10/08/1991 | US5054310 Test object and method of measurement of an ultrasonic beam |
| 10/08/1991 | CA1290443C Ultrasonic method for measuring internal contact pressure between mating solid parts separated by a liquid film |
| 10/04/1991 | CA2013859A1 Thin rod flexural acoustic wave sensors |
| 10/03/1991 | CA2039543A1 Ultrasonic beam aiming apparatus and method for nondestructive testing |
| 10/02/1991 | EP0448896A1 Method and apparatus for non-destructive testing of concrete components |
| 10/02/1991 | CN2085964U Complete dry type coupled drilling probe assembly |
| 10/01/1991 | US5053747 Ultrasonic air-in-line detector self-test technique |
| 10/01/1991 | US5052227 Device and probe for measuring the variation of distance between the two faces of a layer of material by means of ultrasounds |
| 10/01/1991 | US5052215 Leak detection in storage tank bottoms by pneumatic enhancement of acoustic emissions |
| 09/25/1991 | EP0448291A2 Ultrasonic probe having rotary refracting member |
| 09/24/1991 | US5051696 Surface testing device with reciprocating sensor |
| 09/24/1991 | US5051645 Acoustic wave H2 O phase-change sensor capable of self-cleaning and distinguishing air, water, dew, frost and ice |
| 09/24/1991 | US5050703 Electrodynamic transducer head |
| 09/24/1991 | US5050610 Transesophageal ultrasonic scanhead |
| 09/24/1991 | US5050436 Ultrasonic probe and acoustic lens attachment |
| 09/19/1991 | WO1991014177A1 Method of and system for determining refrigerant/lubricant ratio within enclosed flow apparatus |
| 09/19/1991 | WO1991014176A1 Method and apparatus for the transmission of an acoustic signal in a photoacoustic cell |
| 09/19/1991 | WO1991014175A1 Ultrasonic testing machine with a rotor with a plurality of testing heads and a transmission device for connecting the testing heads to a stationary electronic device |
| 09/19/1991 | DE4007956A1 Non-destructive ultrasound testing head - comprises cylinder whose outlet tube has inner projecting end onto the centre line and has pressurised water jet directed on centre line |
| 09/18/1991 | EP0446533A2 Apparatus and method for detecting inhomogeneities in semi-plastic substances through ultrasound |
| 09/18/1991 | CN1054667A Reflecting sound microscope with acoustic mirror |
| 09/17/1991 | US5050226 Ultrasonic echographic imaging device utilizing an improved adaptive filter |
| 09/17/1991 | US5050137 Ultrasonic probe |
| 09/17/1991 | US5049823 Method and device for measuring the qualities of a multiphase fluid |
| 09/17/1991 | US5048341 Container wall measuring apparatus and method |
| 09/17/1991 | US5048340 Semi-automatic system for ultrasonic measurement of texture |
| 09/13/1991 | CA2037524A1 Ultrasonic testing apparatus and method for rapidly inspecting a large number of gas cylinders of similar design for internal neck-shoulder defects |
| 09/11/1991 | EP0445506A1 Apparatus for ultrasonic testing of a screw's head placed in a component |
| 09/11/1991 | EP0377571B1 Imaging process and system for transillumination with photon frequency marking |
| 09/11/1991 | CN1054482A Signal processing method for magnetic-ultrasonic wall thickness measuring apparatus |
| 09/10/1991 | US5046364 Hand-held ultrasonic probe |
| 09/10/1991 | US5046363 Apparatus for rapid non-destructive measurement of die attach quality in packaged integrated circuits |
| 09/09/1991 | WO1991014182A1 Monitoring of soil |
| 09/05/1991 | WO1991013348A1 Nondestructive ultrasonic evaluation of formability of metallic sheets |
| 09/04/1991 | EP0444800A2 Signal processing method for magnetic-ultrasonic wall thickness measuring apparatus |
| 09/04/1991 | EP0444578A2 Ultrasonic squirter |
| 09/04/1991 | CN1054312A 16-channel defects detecting technology and apparatus for medium plate |
| 09/03/1991 | US5045746 Ultrasound array having trapezoidal oscillator elements and a method and apparatus for the manufacture thereof |
| 09/03/1991 | US5044586 Manipulator for crack detector transducers |
| 09/03/1991 | US5044370 Probe with bar of piezoelectric elements for ultrasound apparatus |
| 09/03/1991 | CA1288316C Bladder device for displacing air in bottle bore shaft |
| 08/28/1991 | WO1991012848A1 Apparatus and method for the detection of air in fluid delivery systems |
| 08/28/1991 | EP0443714A2 A method and apparatus for processing electrical signals and a stress wave sensor |
| 08/28/1991 | EP0443708A2 An apparatus for controlling an internal combustion engine |
| 08/27/1991 | US5043706 System and method for detecting bubbles in a flowing fluid |
| 08/27/1991 | US5043570 High resolution microscoping system using convolution integration process |
| 08/27/1991 | US5042493 Ultrasonic probe and method of manufacturing the same |
| 08/27/1991 | US5042492 Probe provided with a concave arrangement of piezoelectric elements for ultrasound apparatus |
| 08/27/1991 | US5042491 Ultrasonic diagnostic apparatus |
| 08/27/1991 | US5042489 Ultrasonic densitometer device and method |
| 08/27/1991 | US5042305 Ultrasonic flaw detecting system |
| 08/27/1991 | US5042304 Ultrasonic microscope |
| 08/27/1991 | US5042303 Apparatus for ultrasound detection |
| 08/27/1991 | US5042288 Method of sensing contamination in the atmosphere |
| 08/27/1991 | CA1288159C Drive network for an ultrasonic probe |
| 08/22/1991 | WO1991013369A1 Combined reflection and transmission ultrasonic imaging method and apparatus |
| 08/22/1991 | CA2051653A1 Combined reflection and transmission ultrasonic imaging method and apparatus |
| 08/21/1991 | EP0442450A2 Variable origin - variable angle acoustic scanning method and apparatus |
| 08/21/1991 | EP0442207A1 A method and apparatus for testing the response of a stress wave sensor |
| 08/21/1991 | CN1053957A Utrasonic testing device |
| 08/20/1991 | US5041989 Method and apparatus for observing operating state of mechanical seal |
| 08/20/1991 | US5040734 Method for determining physical properties |
| 08/20/1991 | US5040419 Methods and apparatus for non-destructive testing of materials using longitudinal compression waves |
| 08/15/1991 | WO1991012093A1 Method and device for generating an ultrasonic wave |
| 08/15/1991 | CA2075049A1 Method and device for generating and ultrasonic wave |
| 08/14/1991 | DE4004228A1 Remote inconsistency or foreign body location - uses opto-thermal-acoustic technique to measure surface oscillation and identify target locations |
| 08/13/1991 | US5038787 Method and apparatus for analyzing material properties using reflected ultrasound |
| 08/13/1991 | US5038614 Acoustic vibration detection of fluid leakage from conduits |
| 08/08/1991 | WO1991008477A3 Apparatus for automatically and non-destructively determining the class of standardized mechanical properties of a sample of hygroscopic material |
| 08/08/1991 | DE4003259A1 Interferometric detection of surface displacement of solid state body - exciting surfaces by illumination laser to produce ultrasonic vibrations and part of reflected radiation impinges on detector |
| 08/07/1991 | EP0440317A1 Method and apparatus for testing ferromagnetic work pieces by ultrasonic waves |
| 08/06/1991 | US5036708 Rheo-photoacoustic ft-ir spectroscopic method and apparatus |
| 08/06/1991 | US5036707 Ultrasonic testing apparatus and method for rapidly inspecting a large number of gas cylinders of similar design for internal neck-shoulder defects |
| 08/06/1991 | US5036706 Sonic web break detector |
| 08/06/1991 | US5036703 Method and apparatus for testing liquid fillings in tanks |
| 08/06/1991 | US5036696 Method for measuring fracture toughness of brittle media |
| 08/06/1991 | CA1287388C Broadband optical detection of transient motion from a scattering surface |
| 07/31/1991 | EP0324785A4 Atmospheric variable compensation for an automated inspection system |
| 07/30/1991 | US5035144 Frequency broadband measurement of the characteristics of acoustic waves |
| 07/30/1991 | US5035143 Method of detecting creep swelling |
| 07/30/1991 | US5035142 Method for vibratory treatment of workpieces and a device for carrying same into effect |