| Patents for G01H 1 - Measuring vibrations in solids by using direct conduction to the detector (4,000) |
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| 10/11/1989 | EP0336477A1 Method of determining drill bit wear |
| 10/11/1989 | EP0336224A1 Sensor and method for acoustic emission examination |
| 10/10/1989 | US4872337 Nondestructive testing of gears |
| 10/04/1989 | EP0334988A2 Vibration detector |
| 10/03/1989 | US4870868 Vibration sensing apparatus |
| 09/27/1989 | EP0334795A2 Vibration transducer mounting |
| 09/27/1989 | EP0334793A2 Transducer assemblage for hand-held vibration meters |
| 09/20/1989 | CN2044647U Experimental platform for simulating torsion in axle series of internal-combustion engine |
| 09/05/1989 | US4862749 Shaft torsional vibration monitor for a multi-mass rotary shaft system |
| 08/22/1989 | US4858470 Vibration transducer mounting |
| 08/16/1989 | EP0327865A2 Turbine blade fatigue monitor |
| 08/08/1989 | US4854494 Monitoring bond parameters during the bonding process |
| 07/27/1989 | WO1989006843A1 Detector device for operational monitoring of a machine or a process |
| 07/26/1989 | EP0325093A2 Shock-wave ultrasonic device |
| 07/25/1989 | CA1257920A1 Measurement of wave propagation power flow in structures |
| 06/28/1989 | EP0321600A1 Accelerometer |
| 06/21/1989 | CN1033480A Microcomputerized modal analysis method |
| 06/06/1989 | US4836218 Method and apparatus for the acoustic detection and analysis of joint disorders |
| 06/01/1989 | WO1989004960A1 Non-destructive evaluation of ropes by using transverse vibrational wave method |
| 05/30/1989 | US4833931 Thermally self-adjusting mount for proximity sensor |
| 05/16/1989 | US4829824 Method for digital peak value measurement for ultrasonic test pulses |
| 05/09/1989 | US4827771 Transducer assemblage for hand-held vibration meters |
| 05/03/1989 | EP0313903A2 Method for detecting the presence of insects and/or their larvae in solid material, in particular wood |
| 05/02/1989 | US4827435 Blade pitch measurement apparatus and method |
| 04/26/1989 | EP0313367A2 Monitoring of exciter shaft torsional vibrations |
| 04/26/1989 | CN1032586A Monitoring of exciter shaft torsional vibrations |
| 04/04/1989 | US4817417 Aligning and securing the geometric center of a sensor |
| 03/29/1989 | CN1032068A Steam trap operation detector |
| 03/22/1989 | CN1031894A Thermally self-adjusting mount for proximity sensor |
| 03/21/1989 | US4813415 Sensor for evaluation of shock wave pulses |
| 03/08/1989 | CN1003538B Turbine blade vibration detection apparatus |
| 02/28/1989 | US4808817 Rotational acceleration detector with microdot coding |
| 02/21/1989 | US4807167 Rapid method of digital automatic gain control |
| 02/21/1989 | US4806914 Detection by automatic gain control features of gradual cutting tool breakage |
| 01/31/1989 | CA1249654A1 Quality control for sucker rods |
| 01/24/1989 | US4800512 Method and apparatus for determining and detecting data indicative of the condition of machines through a unique data probe including a test data probe portion and an identifying data sensing probe portion |
| 01/11/1989 | CN2030713U Multi-functional eddy-current measuring instrument |
| 01/10/1989 | US4796873 Active vibration isolation system |
| 01/04/1989 | EP0203109B1 Measurement of wave propagation power flow in structures |
| 01/03/1989 | CA1248216A1 Active vibration isolation system |
| 12/27/1988 | US4793186 Monitoring of exciter shaft torsional vibrations |
| 12/21/1988 | CN88211241U Collateral lines double amplitude measurer |
| 12/20/1988 | US4791810 Flow monitoring |
| 12/13/1988 | US4790189 Method for eliminating sensor drift in a vibration monitoring system |
| 12/06/1988 | US4789969 Method of measuring the anisotropy of propagation or reflection of a transverse wave, particularly a method of geophysical prospecting by measurement of the anisotropy of propagation or of reflection of shear waves in rocks |
| 11/16/1988 | CN88102452A Double eccentric mount |
| 11/02/1988 | EP0288979A2 Method and apparatus for observing operating state of mechanical seal |
| 11/01/1988 | US4782469 Ultra-sound sensor |
| 10/11/1988 | US4776216 Programmable jet blade excitation system |
| 10/06/1988 | DE3709896A1 Method for shaping (equalising, correcting) sound emission signals |
| 09/28/1988 | EP0284087A2 A shaft torsional vibration monitor for a multi-mass rotary shaft system |
| 09/20/1988 | US4771637 Accelerometer |
| 09/14/1988 | CN88101105A Method for eliminating sensor drift in vibration monitoring system |
| 09/13/1988 | US4771182 Spurious electromagnetic energy discriminator for electro-optical inspection systems |
| 09/07/1988 | CN88100992A Programmable jet blade excitation system |
| 09/06/1988 | US4769594 Method and circuit arrangement for measuring the dynamical behavior of a rotating body |
| 09/06/1988 | US4768380 Method and means for detecting faults or defects in moving machine parts |
| 08/24/1988 | EP0279184A1 Impact localising method using an acoustic emission monitoring system, in particular for pressure-retaining boundaries in power plants |
| 08/18/1988 | DE3703946A1 Frequency-selective vibration sensor |
| 08/18/1988 | DE3703655A1 Acoustic damping detector for nondestructive material tests |
| 08/10/1988 | EP0277560A1 Immediate detection method for undesirable damaging manipulations at an object |
| 08/04/1988 | DE3729476C1 Device for measuring oscillations in an overhead-line conductor |
| 08/04/1988 | DE3701948A1 Method of determining average sound attenuation by approximation |
| 08/03/1988 | EP0276407A2 Apparatus for calibrating a bulk wave monitoring system |
| 07/27/1988 | EP0275877A2 Bond paramaters control during bonding |
| 07/19/1988 | US4758964 Method and apparatus for monitoring machine parts |
| 07/19/1988 | US4757825 Cardio-pulmonary activity monitor |
| 07/19/1988 | US4757717 Apparatus and method for measuring vibration of a rotating member |
| 06/30/1988 | WO1988004771A1 Vibration monitoring apparatus |
| 06/16/1988 | DE3712651A1 Method and device for inspecting the state of the rollers and counter-rollers during the simultaneous rolling of a number of annular surfaces of a rotating workpiece |
| 06/14/1988 | US4751657 Method and apparatus for detecting axial cracks in rotors for rotating machinery |
| 06/07/1988 | US4748850 Apparatus for evaluating the slippage of a mechanical seal |
| 05/18/1988 | EP0267475A1 Ultrasonic sensor |
| 04/28/1988 | DE3725123A1 Method for selective vibration monitoring of rotating machines |
| 04/19/1988 | US4738138 Measurement of wave propagation power flow in structures |
| 04/19/1988 | US4738137 For use in non-destructive testing |
| 04/19/1988 | CA1235477A1 Method and apparatus for the acoustic counting of particles |
| 03/23/1988 | CN87213197U Inertial speed sensor |
| 03/15/1988 | US4730484 Missing bearing detector |
| 03/15/1988 | CA1234201A1 Turbine blade vibration detection apparatus |
| 03/10/1988 | WO1988001367A3 Spurious electromagnetic energy discriminator for electro-optical inspection systems |
| 03/09/1988 | CN87207362U Mechanical vibration detector |
| 03/02/1988 | CN87103769A Apparatus for generating elliptically polarized shear waves |
| 02/25/1988 | WO1988001367A2 Spurious electromagnetic energy discriminator for electro-optical inspection systems |
| 02/24/1988 | EP0256627A2 Apparatus for generating shear waves in an earth medium |
| 02/24/1988 | EP0256438A1 Sensor for recording shock wave impulses |
| 02/09/1988 | US4723447 Inertia-sensitive device |
| 12/30/1987 | WO1987007951A1 Missing bearing detector |
| 12/22/1987 | US4713968 Method and apparatus for measuring the mechanical anisotropy of a material |
| 11/25/1987 | EP0246637A2 Method for monitoring vibrations in rotating machinery |
| 11/17/1987 | US4707688 Detection of tool breaks that cause slowly decreasing cutting noise |
| 11/04/1987 | EP0244258A1 Flow monitoring |
| 10/22/1987 | DE3627796C1 Device for monitoring the state and breakage of rotating tools by means of measurements of structure-borne sound |
| 09/12/1987 | CN86206280U Peak-to-peak amplitude measurer with circles departing from each other |
| 08/25/1987 | US4688429 Determination of the spectral content of transient stress wave events |
| 07/28/1987 | US4683542 Vibration monitoring apparatus |
| 07/28/1987 | CA1224867A1 Apparatus for continuous long-term monitoring of acoustic emission |
| 07/01/1987 | EP0227138A1 Means for detecting faults or defects in moving machine parts |
| 06/16/1987 | US4672850 Apparatus for measuring the vibrations of a spiral bevel gear drive on a gear testing machine |
| 06/02/1987 | US4669315 Rotating machinery diagnosis system with acoustic emission technique |