| 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) | 
|---|
| 08/26/1987 | EP0233676A1 Apparatus for ultrasound detection | 
| 08/25/1987 | US4688576 Ultrasonic transducer probe assembly | 
| 08/25/1987 | US4688429 Determination of the spectral content of transient stress wave events | 
| 08/25/1987 | US4688428 Method of and device for scanning objects by means of ultrasound echography | 
| 08/25/1987 | US4688423 System and process for measuring ultrasonic velocity | 
| 08/19/1987 | EP0233047A2 Solute concentration measurement apparatus | 
| 08/19/1987 | EP0232794A2 Electrodynamical transducer | 
| 08/19/1987 | EP0232613A2 Detection of hydrogen damage in boiler tubes | 
| 08/18/1987 | US4687962 Ultrasonic horn driving apparatus and method with active frequency tracking | 
| 08/18/1987 | CA1225733A1 Scanning acoustic microscope | 
| 08/13/1987 | WO1987004793A1 Method and device for measuring solid phase parameters of suspensions | 
| 08/12/1987 | EP0231865A2 Arrangement for nondestructive testing of cylinder-shaped work pieces | 
| 08/12/1987 | EP0231470A2 Method of and apparatus for determination of trace constituents by simultaneous measurement of photoluminescence and photoacoustic signal | 
| 08/12/1987 | EP0231405A1 Method and device for determining the load of charcoal filters | 
| 08/12/1987 | CN87100104A Microcomputer controlled auto-ultrasonic flaw detector of train wheel shaft | 
| 08/11/1987 | US4686078 Nuclear reactor inspection device | 
| 08/11/1987 | US4685966 Surface tracking apparatus | 
| 08/11/1987 | US4685475 Monitoring rod | 
| 08/11/1987 | US4685335 Method and apparatus for monitoring cracks of a rotatable body | 
| 08/11/1987 | US4685334 Method for ultrasonic detection of hydrogen damage in boiler tubes | 
| 08/05/1987 | EP0230880A1 Apparatus and method for ultrasonic detection of inclusions in a molten body | 
| 08/04/1987 | US4684793 Device for acquiring, storing and evaluating the data of a checking process | 
| 08/04/1987 | US4684493 Ultrasonic absorption; immersed assembly | 
| 08/04/1987 | US4683752 For determining a property of a liquid | 
| 08/04/1987 | US4683751 Sample stand adjusting device in an ultrasonic microscope | 
| 08/04/1987 | US4683750 Thermal acoustic probe | 
| 08/04/1987 | CA1225142A1 Sonic apparatus and method for detecting the presence of a gaseous substance in a closed space | 
| 08/04/1987 | CA1224935A1 Optical interferometric reception of ultrasonic energy | 
| 07/29/1987 | EP0229840A1 Ultrasonic flaw detector | 
| 07/29/1987 | EP0229837A1 Method of measuring contact stress in contact surface between solids by ultrasonic wave | 
| 07/28/1987 | US4682608 Apparatus for measuring viscoelastic properties of skin in vivo | 
| 07/28/1987 | US4682498 Surface testing apparatus | 
| 07/28/1987 | CA1224867A1 Apparatus for continuous long-term monitoring of acoustic emission | 
| 07/22/1987 | EP0138935B1 Ultrasonic apparatus and method for the control and measurement of the time evolution of physical-chemical, biological or bacteriological phenomena | 
| 07/21/1987 | US4681855 Humidity sensing and measurement employing halogenated organic polymer membranes | 
| 07/21/1987 | US4681730 Process and device for detecting leaking nuclear fuel elements in a nuclear assembly | 
| 07/21/1987 | US4680969 Ultrasonic probe jig | 
| 07/21/1987 | US4680967 Ultrasonic angle test probe having at least two transducers | 
| 07/21/1987 | US4680966 Apparatus for examining an object by ultrasonic echography | 
| 07/16/1987 | WO1987004250A1 Apparatus for detecting defects, particularly in castings | 
| 07/15/1987 | EP0228731A1 Pivot ring | 
| 07/15/1987 | EP0228720A2 Ultrasonic inspection system with linear transducer array | 
| 07/14/1987 | US4680498 Input circuit in ultrasonic apparatus | 
| 07/14/1987 | US4679946 Evaluating both thickness and compositional variables in a thin film sample | 
| 07/14/1987 | US4679448 System for the internal inspection of pipelines | 
| 07/14/1987 | US4679437 Method of detecting flaws in thick wall steel pipe with ultrasonic angle beam technique | 
| 07/14/1987 | US4679435 Gas content determination of evaporite formations using acoustic emissions during dissolution | 
| 07/08/1987 | CN86106835A Method for sorting out point flaws from slender ones in workpiece by the use of ultrasonic wave | 
| 07/07/1987 | US4678056 Part time four wheel drive vehicle with road surface condition sensor | 
| 07/07/1987 | US4677916 Weld scanner guide and magnetically susceptible track | 
| 07/07/1987 | US4677865 Pipe pig with running gear | 
| 07/07/1987 | US4677852 Method of and apparatus for inspecting and/or positioning objects with wave energy using wave guides | 
| 07/07/1987 | US4677842 Ultrasonic density measurement | 
| 07/01/1987 | EP0226821A1 Ultrasonic apparatus with dynamic change of the focal-reception position | 
| 07/01/1987 | EP0226638A1 Method of measuring angle of inclination of planar flaw in solid object with ultrasonic wave | 
| 06/30/1987 | US4676379 Apparatus for sorting out defective plastic crates for bottles | 
| 06/30/1987 | US4676251 Improved method and device for measuring frequency dependent parameters of objects by means of ultrasound echography | 
| 06/30/1987 | US4676250 Method and apparatus for estimating the attenuation-vs-frequency slope of a propagation medium from the complex envelope of a signal | 
| 06/25/1987 | DE3545889C1 Method for determining the elastic material constants of the material of a component part, and appliance for implementing the method | 
| 06/24/1987 | EP0226073A1 Device for measuring and/or testing of objects | 
| 06/23/1987 | US4674516 Ultrasonic delay line matrix switch check system | 
| 06/23/1987 | US4674337 Particle detector | 
| 06/23/1987 | US4674334 Properties of composite laminates using leaky lamb waves | 
| 06/23/1987 | US4674333 Multi-color displaying ultrasonic microscope | 
| 06/23/1987 | US4674332 Laser induced acoustic generation for sonic modulus | 
| 06/23/1987 | CA1223332A1 Electromagnetic transducer | 
| 06/19/1987 | DE3544786A1 Arrangement for determining the concentration of a gas, especially of the carbon dioxide content in a gas mixture | 
| 06/18/1987 | WO1987003688A1 Method and apparatus for characterizing defects in tubular members | 
| 06/16/1987 | US4673927 Apparatus for detecting and controlling the level of a gaseous fluid | 
| 06/16/1987 | US4673027 Device for inspection and/or repair of the tubes of a steam generator for nuclear reactors | 
| 06/16/1987 | US4672852 For ultrasonically testing welded seams | 
| 06/16/1987 | US4672851 Acoustic evaluation of thermal insulation | 
| 06/16/1987 | CA1222914A1 Mobile positioning body introduction device | 
| 06/10/1987 | CN86207327U Ultrasonic flaw detector with rotary probe | 
| 06/09/1987 | US4672591 Ultrasonic transducer | 
| 06/09/1987 | US4671114 Acoustical detection of hidden insects | 
| 06/02/1987 | US4670683 Electronically adjustable mechanical lens for ultrasonic linear array and phased array imaging | 
| 06/02/1987 | US4670029 Dearating water used to flood bore | 
| 06/02/1987 | US4669315 Rotating machinery diagnosis system with acoustic emission technique | 
| 06/02/1987 | US4669313 Method and apparatus for local selective detection and generation of polar structure alignments in microscopic object areas | 
| 06/02/1987 | US4669312 Method and apparatus for ultrasonic testing of defects | 
| 06/02/1987 | US4669311 Method of determining an acoustic refractive index distribution in an examination zone, and device for performing the method | 
| 06/02/1987 | US4669310 High frequency ultrasonic technique for measuring oxide scale on the inner surface of boiler tubes | 
| 06/02/1987 | CA1222422A1 Remotely operated maintenance and inspection equipment transporter | 
| 05/27/1987 | EP0222986A1 Ultra-sonic sensor for detecting air bubbles in flowing liquids | 
| 05/26/1987 | US4668945 Detector of bubbles in blood | 
| 05/26/1987 | US4667515 Pipeline inspection | 
| 05/26/1987 | CA1222314A1 Inspection method of square billet using electronic scanning | 
| 05/20/1987 | EP0222450A2 Method and apparatus for estimating the ultrasound attenuation - VS - frequency slope of a propagation medium from the complex envelope of a signal | 
| 05/20/1987 | EP0222346A2 Method of measuring a sound pressure distribution in a solid body due to a ultrasonic probe by using photoelasticity | 
| 05/20/1987 | EP0222276A2 Ultrasonic measuring head | 
| 05/19/1987 | US4665752 Electrodynamic transducer | 
| 05/19/1987 | US4665750 Underwater transducers | 
| 05/19/1987 | US4665734 Method and installation for selective detection of defects in a workpiece | 
| 05/13/1987 | EP0221796A1 Method and apparatus for the ultrasonic detection of gas bubbles in a liquid metal | 
| 05/12/1987 | US4664124 Biological fluid specific gravity monitor with ultrasonic sensor circuit | 
| 05/12/1987 | US4664123 Ultrasonic method and apparatus for tissue characterization and imaging nonlinear parameter | 
| 05/12/1987 | US4663973 Ultrasonic scanning apparatus | 
| 05/07/1987 | WO1987002770A1 Measurement of specific gravity | 
| 05/07/1987 | DE3637056A1 Ultrasonic imaging device with colour display function |