| Patents for G01B 17 - Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations (3,873) |
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| 08/01/1989 | US4852416 Ultrasonic testing system with variable angle transducer mount |
| 08/01/1989 | US4852407 Method and apparatus for determining length of pipe utilizing sound waves |
| 07/25/1989 | US4850232 System for measuring the dimensions of a workpiece |
| 07/11/1989 | US4847037 Apparatus for the inspection of nuclear reactor fuel rods |
| 07/11/1989 | US4847036 Apparatus for the inspection of a nuclear reactor fuel assembly |
| 06/20/1989 | US4840066 Ultrasonic thickness gauge having automatic transducer recognition and parameter optimization and method thereof |
| 06/14/1989 | EP0320122A2 A method of position monitoring and apparatus therefor |
| 06/13/1989 | US4838086 Method for measuring the wall thickness of a workpiece by ultra-sound |
| 05/23/1989 | US4833660 Device for detecting the presence of frost and/or for measuring the thickness of frost by ultrasound and frost probe usable in such a device |
| 05/23/1989 | US4832144 Position detector |
| 05/16/1989 | US4831598 Picture display apparatus |
| 05/10/1989 | EP0314813A1 Method and device for controlling the condition of lengthy objects |
| 05/05/1989 | WO1989003973A1 Method and device for controlling the condition of a lengthy construction element |
| 05/02/1989 | US4827457 Method and apparatus for acoustically measuring the transverse dimensions of a borehole |
| 04/25/1989 | US4825423 Method of measuring microcrack depth |
| 04/25/1989 | US4823590 Automatic calibration method for thickness gauges |
| 04/25/1989 | CA1253246A1 Ultrasonic depth measurement apparatus and methods |
| 04/18/1989 | CA1252876A1 Ultrasonic transducer |
| 04/12/1989 | EP0148908B1 Parts sorting apparatus and method |
| 03/28/1989 | US4816207 Method for checking the dimensions of a fuel assembly for nuclear reactors |
| 03/16/1989 | DE3737032C1 Absolute position-measuring device for measuring the relative position of two objects by means of ultrasonic waves |
| 03/09/1989 | DE3728552A1 Contactless positioning and control device, which works by means of ultrasound transit-time measurement |
| 02/22/1989 | EP0304053A2 Apparatus for inspecting a pipeline |
| 02/09/1989 | WO1989001130A1 Acoustical length measurement of tubular goods |
| 02/07/1989 | CA1249877A1 Ultrasonic apparatus, system and method |
| 01/31/1989 | US4800757 Ultrasonic dimension measuring apparatus |
| 01/18/1989 | EP0201576B1 Method for detecting the position of the band edge of a material sheet |
| 01/17/1989 | CA1248937A1 Rock drill with tunnel profile control system |
| 01/11/1989 | EP0298165A1 System and method for measuring ice thickness |
| 01/10/1989 | CA1248622A1 Utrasonic transducer assembly |
| 01/04/1989 | CN1030134A Non-contact measuring device and method thereof for human height |
| 12/28/1988 | EP0296392A1 Method and apparatus for determining length of pipe utilizing sound waves |
| 12/28/1988 | CN88212696U Multifunctional acoustic measuring apparatus |
| 12/28/1988 | CN88211628U Ultrasonic instrument for measuring height of human body |
| 12/15/1988 | WO1988009895A1 Ultrasonic testing system with variable angle transducer mount |
| 12/14/1988 | EP0295096A2 Method of surveying and determining thicknesses and properties of subsurface ground layers without excavation |
| 12/14/1988 | CN88103289A 位置检测器 Position detector |
| 11/30/1988 | EP0292843A1 Position detector |
| 11/23/1988 | CN88102544A Monitoring method and implementing apparatus for long measured matter state |
| 11/17/1988 | WO1988008960A1 Method and device for controlling the condition of lengthy objects |
| 11/15/1988 | CA1244931A1 Ultrasonic depth measurement apparatus and methods |
| 11/08/1988 | US4782702 Ultrasonic testing system with variable angle transducer mount |
| 10/25/1988 | US4780858 Borehole televiewer mudcake monitor |
| 10/04/1988 | US4774840 Detector for rod-like articles |
| 09/21/1988 | EP0282687A2 Intrapipe spot examination pig device |
| 09/07/1988 | EP0281035A2 Monitoring process for the electrodynamic wall thickness and error investigation |
| 09/06/1988 | US4768940 Tube wall thickness measuring device and extrusion apparatus with the device |
| 08/24/1988 | EP0155270B1 Acoustic position sensing apparatus |
| 08/18/1988 | DE3703658A1 Device for determining the level of a liquid in a container, in particular in a motor vehicle |
| 08/09/1988 | US4762001 Arrangement for identifying the position of a movable body with ultrasound |
| 07/26/1988 | US4759221 Apparatus for the determination of surface cracks |
| 07/19/1988 | US4757713 Ultrasonic transducer |
| 07/06/1988 | EP0273419A1 Process for the supersonic measurement of the wall thickness of a work piece |
| 06/22/1988 | EP0271670A1 Method for the detection of corrosion or such |
| 06/21/1988 | US4752917 Measurement system using sonic and ultrasonic waves |
| 06/14/1988 | US4750584 Distance measuring device |
| 06/07/1988 | US4750117 Ultrasonic depth measurement apparatus and methods |
| 05/31/1988 | US4747310 Physical properties and thickness of a test material |
| 05/25/1988 | EP0157845B1 Apparatus and method for locating an object |
| 05/24/1988 | US4745808 Measurement apparatus utilizing sonar waves |
| 05/18/1988 | EP0267823A1 Glazed frost detection appliance and thickness measuring means using ultrasonics, and glazed frost sensor |
| 05/17/1988 | US4744253 System for determining the pressure in the nip between two rollers |
| 05/10/1988 | CA1236560A1 Process and apparatus for determining the interfacial area in a two-phase mixture incorporating a gaseous phase flowing in the form of bubbles |
| 05/04/1988 | EP0266192A2 Passive acoustic power spectra to monitor and control processing |
| 04/26/1988 | US4740146 Apparatus for measuring and controlling the wall thickness of plastic pipes |
| 04/21/1988 | DE3634374A1 Method and apparatus for determining the thickness of a strip-shaped or plate-shaped workpiece |
| 04/19/1988 | US4738139 Ultrasonic real-time monitoring device for part surface topography and tool condition in situ |
| 04/19/1988 | CA1235471A1 Method and means for determining the subsurface position of a blowing well with respect to a relief well |
| 04/14/1988 | DE3634421A1 Device for the continuous monitoring of a relative displacement of the stator and rotor of an electrical machine |
| 04/05/1988 | CA1234907A1 Apparatus for measuring the pitch between adjacent rods in a nuclear fuel assembly |
| 03/30/1988 | EP0261563A2 Inspection installation for nuclear reactor fuel rods |
| 03/30/1988 | EP0261562A2 Inspection installation for nuclear reactor fuel assembly |
| 03/29/1988 | US4734637 Apparatus for measuring the length of an electrical line |
| 03/15/1988 | US4730494 Method for examining a surface of a sample by means of ultrasound |
| 03/10/1988 | DE3629174A1 Device for measuring the wall thickness of pipes (tubes) |
| 02/25/1988 | WO1988001383A1 Probe for composite analyzer tester |
| 02/24/1988 | EP0256080A1 Ultrasonic thickness meter |
| 02/18/1988 | DE3621819A1 Method and device for measuring distance using air-borne sound |
| 02/03/1988 | CN87104400A Bore mapping and surface time measurement system |
| 01/26/1988 | US4721902 Noise rejection in a sonic transducer |
| 01/19/1988 | US4719808 Temperature-compensated ultrasonic measurement of wall thickness |
| 01/12/1988 | CA1231430A1 Method and apparatus for measurement of length and height of objects |
| 01/07/1988 | EP0251696A2 Bore mapping and surface time measurement system |
| 01/07/1988 | EP0251008A1 Arrangement for the determination of the position of a mobile body |
| 01/07/1988 | DE3622106A1 Method for measuring the wall thickness of a zinc-plating (galvanising) bath |
| 01/05/1988 | US4716764 Method and device for determining the cross-section of elongated objects using a sound field |
| 12/22/1987 | US4715008 Hand-held digital thickness gage |
| 12/22/1987 | US4713892 Apparatus for the protection of a movable elongate machine part |
| 12/15/1987 | US4712624 Rock drill with tunnel profile control system |
| 12/10/1987 | DE3619292A1 Apparatus and method for detecting the fat (lard) thickness on livestock, in particular on slaughter animals |
| 12/09/1987 | EP0248530A2 A method and apparatus for inspection or monitoring of a product |
| 12/08/1987 | US4711303 Method and means for determining the subsurface position of a blowing well with respect to a relief well |
| 12/08/1987 | US4711120 Method of wear monitoring using ultrasonic phase comparison |
| 11/25/1987 | EP0246937A2 Nuclear radiation apparatus and method for dynamically measuring density of test materials during compaction |
| 11/24/1987 | US4709209 Magnetostrictive vibration wave position detecting apparatus with variable threshold detecting valves |
| 10/07/1987 | EP0240029A2 Picture display apparatus |
| 09/30/1987 | EP0239275A2 Measuring oxide scale on inner surfaces of boiler tubes |
| 09/29/1987 | US4697254 System and method for measuring ice thickness |
| 09/23/1987 | EP0237563A1 Apparatus for inspection and/or positioning objects with wave energy using wave guides |
| 09/17/1987 | DE3608384A1 Method for measuring displacements, in particular for the absolute measurement of short displacements, via the propagation time of pulses in a material support medium, and associated device for carrying out the method |