| Patents for G01H 17 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the other groups of this subclass (3,373) |
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| 06/12/1996 | CN2229076Y Noise grade recording treating meter |
| 06/05/1996 | EP0714519A1 Entropy based signal transmission, reception and signal analysis method and apparatus |
| 06/05/1996 | DE4435635A1 Microfabrication of cantilever stylus for atomic force microscopy |
| 05/22/1996 | EP0662213A4 System for detecting wood-destroying insect infestations in wood. |
| 05/15/1996 | EP0711989A1 Procedure for detecting crankshaft oscillations |
| 05/14/1996 | US5517537 Integrated acoustic leak detection beamforming system |
| 05/08/1996 | EP0710355A1 Monitoring system for representing the states of vibration of a plurality of blades on a rotating wheel |
| 04/17/1996 | EP0707205A2 Apparatus for detecting anomalies within a monitored volume |
| 04/10/1996 | EP0706036A2 Apparatus and method for transmitting and receiving ultrasonic waves having an acoustoelectric, ultrasonic transducer |
| 04/10/1996 | EP0705422A1 Continuous monitoring of reinforcements in structures |
| 04/05/1996 | CA2159756A1 Apparatus and method for transmitting and receiving ultrasonic waves having an acoustoelectric, ultrasonic transducer |
| 03/26/1996 | US5501105 Digital signal processing of encoder signals to detect resonances in rotating machines |
| 03/20/1996 | CN2222906Y Portable vibration rating device for LF measurement of vibration |
| 02/22/1996 | WO1996005486A1 Method and apparatus for determining resonance information |
| 02/22/1996 | CA2193628A1 Method and apparatus for determining resonance information |
| 02/21/1996 | EP0697595A1 Apparatus for detecting source of acoustic waves |
| 02/21/1996 | EP0697586A2 Integrated acoustic leak detection processing system |
| 02/21/1996 | CN2220635Y Scanning type wide tape ultrasonic detecting instrument with computer controlled |
| 02/20/1996 | US5493516 Dynamical system analyzer |
| 02/15/1996 | DE4428526A1 Acoustic vibration based solid body measuring method for force spectrum determn. |
| 02/08/1996 | DE19522543A1 Piezoelectric measuring sensor system for roller bearings |
| 02/06/1996 | US5488853 Measurement arrangement for calibrating ultrasonic shock wave sensors |
| 02/05/1996 | CA2149991A1 Multichannel equipment for signal acquisition from vibration transducers |
| 01/02/1996 | US5479824 On-line shaft crack detector |
| 12/27/1995 | EP0536415B1 Device for sensing abnormality in bearing of blower for gas laser |
| 12/26/1995 | US5479517 Method of estimating delay in noise-affected voice channels |
| 11/14/1995 | US5465469 Method for measuring sound absorption power of a theater chair with a dummy representing a human being seated thereon |
| 10/24/1995 | US5460031 Knocking detection method for internal combustion engines and ignition timing control method therefor |
| 10/18/1995 | CN1110462A Apparatus and method for evaluating audio distortions |
| 10/17/1995 | US5457995 Horizontal boring pipe penetration detection system and method |
| 09/26/1995 | US5453940 Dynamical system analyser |
| 09/13/1995 | EP0671611A2 Vibration monitoring apparatus with strobe trigger feature |
| 09/13/1995 | EP0671610A2 Method and apparatus for diagnosing sound source and vibration source |
| 08/30/1995 | CN1107537A Pile head grouting and supersonic detecting combined process for filling long pile in saturated soil |
| 08/29/1995 | US5445027 Method and apparatus for detecting and locating defects in a component of a turbine |
| 08/15/1995 | US5442665 Strain gauge instrumentation device for in-core monitor housings |
| 08/10/1995 | WO1995021384A1 Accelerometric sensor for measuring pinking in an internal combustion engine |
| 08/02/1995 | CN2204417Y Micro-vibration sensor |
| 07/25/1995 | US5435191 Natural frequency measurement apparatus and tension measurement apparatus using the same |
| 07/12/1995 | EP0662213A1 System for detecting wood-destroying insect infestations in wood |
| 06/14/1995 | EP0657349A1 Method for identification of different states of water, and sensor arrangement for use in the method |
| 06/13/1995 | US5423218 Method and instrument for measuring contact angle of rolling bearing |
| 06/10/1995 | CA2137601A1 Method for identification of different states of water, and sensor arrangement for use in the method |
| 05/31/1995 | CN2199533Y Recorder for undergoing destructiveness vibration of body |
| 05/30/1995 | US5419176 Particle detection and analysis |
| 05/09/1995 | CA2013071C Multi-channel adaptive canceler |
| 04/25/1995 | US5410482 Apparatus for estimating vibration input to a suspension device |
| 04/13/1995 | WO1995010032A1 Engine knock detection process |
| 03/01/1995 | EP0640839A2 Apparatus and method for evaluating audio distortions |
| 02/28/1995 | US5394330 System and method for monitoring an operating state of an engine |
| 02/28/1995 | US5394102 Non-repeatable run-out measuring instrument using encoder signals based upon the back EMF of a motor as trigger signals |
| 02/28/1995 | US5392642 System for detection of low power in at least one cylinder of a multi-cylinder engine |
| 02/23/1995 | WO1995005612A1 Entropy based signal transmission, reception and signal analysis method and apparatus |
| 02/23/1995 | CA2169832A1 Entropy based signal transmission, reception and signal analysis method and apparatus |
| 02/21/1995 | US5392046 Entropy based signal, transmission, reception and signal analysis method and apparatus |
| 02/02/1995 | WO1995003530A1 Monitoring system for representing the states of vibration of a plurality of blades on a rotating wheel |
| 02/02/1995 | WO1994025958A3 Method and system for detecting and generating transient conditions in auditory signals |
| 01/31/1995 | US5386082 Method of detecting localization of acoustic image and acoustic image localizing system |
| 01/12/1995 | WO1995001127A1 Nasopharyngealometric apparatus and method |
| 01/05/1995 | WO1995000823A1 Continuous monitoring of reinforcements in structures |
| 01/04/1995 | EP0632261A2 System for detection of low power in at least one cylinder of a multi-cylinder engine |
| 11/10/1994 | WO1994025958A2 Method and system for detecting and generating transient conditions in auditory signals |
| 11/02/1994 | CN1094472A Apparatus for displaying damping effect or base isolation effect |
| 10/26/1994 | CN2180984Y Grind sound sensor and measurer |
| 09/21/1994 | CN2177936Y Rod inserted electronic microsound detector for injurious insects |
| 09/21/1994 | CN1025973C 超声功率计 Ultrasonic Power Meter |
| 09/20/1994 | CA1332079C Hybrid analog digital control method and apparatus for estimation of absolute velocity in active suspension systems |
| 08/24/1994 | EP0612059A2 Method for estimating the propagation time in noisy speech channels |
| 08/18/1994 | DE4304139A1 Measurement arrangement for calibrating ultrasonic shock wave sensors |
| 07/26/1994 | US5333240 Neural network state diagnostic system for equipment |
| 07/05/1994 | US5327358 Apparatus and method for damage detection |
| 06/28/1994 | US5324107 Control method, monitoring method, and control device for kneader |
| 06/21/1994 | US5323319 Damping force controller |
| 06/21/1994 | US5321973 Knocking detecting system and method for an internal combustion engine |
| 06/08/1994 | EP0599863A1 Method and device for the detection and location of changes in a turbine component. |
| 05/31/1994 | US5316002 Nasopharyngealometric apparatus and method |
| 05/11/1994 | DE4237527A1 Frame leak testing, esp. of motor vehicle body - involves generating sound inside body and detecting and evaluating sound outside body |
| 04/06/1994 | EP0590893A2 Knocking detection method for internal combustion engines and ignition timing control method therefor |
| 03/31/1994 | WO1994007114A1 System for detecting wood-destroying insect infestations in wood |
| 03/31/1994 | CA2143742A1 System for detecting wood-destroying insect infestations in wood |
| 03/23/1994 | EP0587915A1 Characteristic frequency measuring equipment and tensiometer using such equipment |
| 03/15/1994 | CA2020144C Apparatus for and method of analyzing coupling characteristics |
| 03/09/1994 | EP0585301A1 Improvements in and relating to particle detection and analysis. |
| 03/09/1994 | EP0585237A1 Dynamical system analyser |
| 03/08/1994 | US5293040 Method and apparatus for measuring vibrations of rotating shaft |
| 02/15/1994 | US5285688 System for detecting wood-destroying insect infestations in wood |
| 02/08/1994 | US5285457 Apparatus for detecting an abnormal bearing condition of a blower utilized for gas laser equipment |
| 01/06/1994 | WO1994000741A1 Device for diagnostics of cycle-action mechanisms |
| 11/18/1993 | EP0570229A2 Abnormal sound detecting apparatus |
| 11/02/1993 | US5257541 Process and device for automatic identification of increased resonance response during balancing procedure |
| 10/26/1993 | CA1323509C Devices for measuring fluid density |
| 10/14/1993 | WO1993020415A1 Characteristic frequency measuring equipment and tensiometer using such equipment |
| 08/31/1993 | US5239869 Acceleration detector |
| 08/25/1993 | CN1075548A Vibration sensor with memory function |
| 08/03/1993 | US5233661 Sound field variable apparatus |
| 07/06/1993 | CA1319993C Shaft torsional vibration monitor for a multi-mass rotary shaft system |
| 06/29/1993 | US5224170 Time domain compensation for transducer mismatch |
| 06/22/1993 | US5222048 Method for determining borehole fluid influx |
| 05/25/1993 | US5212988 Plate-mode ultrasonic structure including a gel |
| 04/27/1993 | US5206816 System and method for monitoring synchronous blade vibration |