| 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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| 01/30/1990 | US4897796 Nondestructive measurement of fractions of phases in mixtures and composite materials |
| 01/30/1990 | US4896672 Hardware corection scheme for inter-frame image jitter in a scanning probe ultrasound imaging system |
| 01/25/1990 | DE3825131A1 Arrangement for the measurement of the concentration of oil-water mixtures |
| 01/24/1990 | EP0352203A2 Method and apparatus for simultaneously measuring in a pipe the density, the concentration, the flowing rate, the delivery and the temperature of a liquid or a pasty fluid by ultrasonic transmission |
| 01/24/1990 | EP0352117A2 Method of analysing and evaluating the results of an ultrasonic examination |
| 01/24/1990 | CN2051742U Bottom wave monitor of supersonic flaw detection |
| 01/23/1990 | US4896303 Method for cementation evaluation using acoustical coupling and attenuation |
| 01/23/1990 | US4896278 Automated defect recognition system |
| 01/23/1990 | US4895025 Destructive insect induced vibration detector |
| 01/23/1990 | US4895017 Apparatus and method for early detection and identification of dilute chemical vapors |
| 01/23/1990 | US4894895 Method of making an ultrasonic probe |
| 01/18/1990 | DE3908439A1 Device for determining density |
| 01/17/1990 | EP0351384A2 An instrument for the measurement of the cavitation or ebullition rate in a liquid |
| 01/17/1990 | EP0351015A2 A method for fabricating a piezoelectric composite transducer |
| 01/17/1990 | CN1038883A 声发射信号变换器 Acoustic emission signal converter |
| 01/17/1990 | CN1038882A Tester for mechanical and physical performances of solid materials |
| 01/16/1990 | US4894806 Ultrasonic imaging system using bundle of acoustic waveguides |
| 01/16/1990 | US4894201 Nuclear fuel pellet surface defect inspection apparatus |
| 01/16/1990 | US4893628 Dual element ultrasonic transducer probe for combined imaging of tissue structures and blood flow in real time |
| 01/16/1990 | US4893512 Swinging-type automatic examination apparatus for piping |
| 01/16/1990 | US4893511 Method and apparatus for determining cracks in a shaft by means of an ultrasound pulse echo |
| 01/16/1990 | US4893510 Method of measuring distribution of crystal grains in metal sheet and apparatus therefor |
| 01/16/1990 | US4893496 Torsional wave fluid sensor and system |
| 01/16/1990 | US4893490 Device and process for controlling the effectiveness of particle hammering of the inner surface of a steam generator tube |
| 01/10/1990 | CN2050980U Eight-channel computerized supersonic automatic flaw detector |
| 01/10/1990 | CN2050972U Harmonic vibration type supersonic sensor for air leakage testing |
| 01/10/1990 | CN1038703A Ultrasonic echograph with controllable phase coherence |
| 01/10/1990 | CN1038697A Nondestructive examination of turbine rotor and evaluation of its remaining life after stress |
| 01/10/1990 | CN1006415B Ultrasonic transducer probe drive mechanism with position sensor |
| 01/09/1990 | US4893286 System and method for preprocessing and transmitting echo waveform information |
| 01/09/1990 | US4893283 Echo ultrasound system with an improved image sequence rate |
| 01/09/1990 | US4891986 Apparatus for inspecting articles |
| 01/09/1990 | US4891972 Ultrasonic joint inspection device and method |
| 01/03/1990 | EP0349165A2 Acoustic detection and measurement of the change in wall thickness of a reactor |
| 01/03/1990 | CN2050609U Comprehensive contrast test block for supersonic flaw detecting |
| 01/03/1990 | CN1038521A Apparatus for acoustic-emission inspection of articles |
| 01/02/1990 | US4890925 Method and apparatus for detecting particular particulate substance |
| 01/02/1990 | US4890496 Method and means for detection of hydrogen attack by ultrasonic wave velocity measurements |
| 01/02/1990 | CA1264196A1 Method of, and an apparatus for, evaluating forming capabilities of solid plate |
| 12/28/1989 | WO1989012822A1 Apparatus and method for detecting small changes in attached mass of piezoelectric devices used as sensors |
| 12/28/1989 | WO1989012820A1 Measurement of moisture content and electrical conductivity |
| 12/28/1989 | WO1989012805A1 An acoustic screen scan microscope for the examination of an object in the short-range field of a resonant acoustic oscillator |
| 12/27/1989 | EP0348289A1 Device for detecting and measuring particles precipitating in a liquid by the use of echography |
| 12/27/1989 | CN1038347A Transducer used for sound-emission signal recording |
| 12/27/1989 | CN1038346A Orange-juice/honey coupling agent for ultrasonic flaw detection |
| 12/26/1989 | US4890268 Two-dimensional phased array of ultrasonic transducers |
| 12/20/1989 | EP0347303A2 Method and apparatus for the non-destructive testing of crude pellets during a powder compressing stage |
| 12/20/1989 | EP0346891A2 Ultrasonic probe and method of manufacturing the same |
| 12/20/1989 | EP0346688A2 Ultrasonic sensor for testing U-tubes in a heat exchanger |
| 12/20/1989 | EP0346638A2 Multi-point wall thickness gage and method thereof |
| 12/20/1989 | EP0346473A1 Scanning device for ultrasonic inspection of articles |
| 12/13/1989 | EP0345852A1 Ultrasonic echograph with reduced interference noise |
| 12/13/1989 | EP0345313A1 Acoustic method for measuring properties of a mobile medium |
| 12/12/1989 | US4886069 Method of, and apparatus for, obtaining a plurality of different return energy imaging beams responsive to a single excitation event |
| 12/06/1989 | EP0187866B1 Surface ultrasonic wave interference microscope |
| 12/05/1989 | US4884449 Apparatus for detecting a failure in bearings |
| 12/05/1989 | CA1263735A1 Ultrasonic scanning device with elastic bumper |
| 11/30/1989 | WO1989011651A1 Method for ultrasonically checking weld seams of articles |
| 11/29/1989 | EP0343411A2 Nuclear fuel pellet surface defect inspection apparatus |
| 11/29/1989 | EP0343368A1 Heat exchangers tube end remote internal sleeving machine |
| 11/29/1989 | CN2048578U Field cross wave mini energy changing device |
| 11/28/1989 | US4882931 Method and an apparatus for determining the velocity, direction and other magnitudes of a flow, in particular a gas flow |
| 11/28/1989 | US4882928 Refrigeration efficiency monitoring system |
| 11/28/1989 | CA1263472A1 Method and apparatus for estimating the ultrasound attenuation-vs-frequency slope of a propagation medium from the complex envelope of a signal |
| 11/23/1989 | EP0342874A2 Ultrasound probe for medical imaging system |
| 11/23/1989 | EP0342757A2 Ultrasonic echographic apparatus with a controllable phase coherence |
| 11/23/1989 | EP0342337A2 Device for the contactless recording of surface deviations of a specimen caused by ultrasound waves |
| 11/21/1989 | US4881409 Multi-point wall thickness gage |
| 11/21/1989 | US4881405 Method and device for mechanical testing of civil engineering structure surfacings |
| 11/16/1989 | WO1989011001A1 Measurement of road roughness |
| 11/15/1989 | EP0341969A2 Ultrasonic densitometer device and method |
| 11/15/1989 | EP0341244A1 Nondestructive measurement of composite materials |
| 11/14/1989 | US4881212 Ultrasonic transducer |
| 11/14/1989 | US4881177 Ultrasonic scanning system |
| 11/14/1989 | US4880012 Ultrasonic probe |
| 11/14/1989 | US4879905 Apparatus for measuring the internal friction of a tranversely vibrating metal specimen |
| 11/14/1989 | CA1262959A1 Method of determining an acoustic refractive index distribution in an examination zone, and device for performing the method |
| 11/08/1989 | EP0340298A1 Method of establishing standard composite material properties |
| 11/07/1989 | US4879546 Ultrasonic hand-held refrigerant leak detector |
| 11/07/1989 | US4879088 Method and apparatus for detecting failed fuel rods (ENC-189) |
| 11/02/1989 | WO1989010560A1 Installation for acoustic-emission checking of articles |
| 11/02/1989 | WO1989010559A1 Method and device for checking solid phase parameters of a suspension |
| 11/02/1989 | EP0339885A2 Method and device for nondestructive evaluation |
| 11/02/1989 | EP0339625A1 Broadband optical detection of transient motion from a scattering surface |
| 11/02/1989 | EP0339263A2 Apparatus for detecting shrink holes, delamination and inhomogeneities |
| 11/01/1989 | CN1036836A Ultrasonic testing method |
| 10/31/1989 | US4877516 Manipulating particulate matter |
| 10/31/1989 | US4876889 Acoustic humidity sensor |
| 10/26/1989 | DE3812434A1 Method and circuit arrangement for the measurement of ultrasonic attenuation in a specimen |
| 10/25/1989 | CN1036505A Method of and apparatus for acoustic nondestructive testing elasticity of biologic soft tissue |
| 10/24/1989 | US4875372 Echo cancellation system |
| 10/24/1989 | US4875371 Determining impurities in samples |
| 10/18/1989 | EP0337575A2 Ultrasonic probe and manufacture method for same |
| 10/18/1989 | EP0337287A1 Echofollower for ultrasonic apparatus for measuring the position of a movable reflective surface |
| 10/17/1989 | US4873984 Techniques for calculating ultrasonic integrated backscatter using frequency or time domain techniques |
| 10/17/1989 | US4873869 Device for the scanning of objects by means of ultrasound echography |
| 10/11/1989 | EP0336640A2 A dual element ultrasonic transducer probe for combined imaging of tissue structures and blood flow in real time |
| 10/11/1989 | EP0336429A2 Analytical method for particulate substances, relevant analytical equipment and its application system |
| 10/11/1989 | EP0336057A1 Hardware correction scheme for inter frame image jitter in a scanning probe ultrasound imaging system |
| 10/10/1989 | US4872347 Automated ultrasonic examination system for heat transfer tubes in a boiler |