| Patents for G01H 11 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties (3,253) |
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| 05/27/2009 | CN100491936C Vibration sensor |
| 05/20/2009 | CN201242593Y Dynamic supervision apparatus for picking sand |
| 05/20/2009 | CN100489471C 传感器 Sensor |
| 05/19/2009 | US7533578 Triangulation with co-located sensors |
| 05/14/2009 | US20090120193 Electronic circuit for measuring the mass of biological material and process for manufacturing the same |
| 05/07/2009 | WO2009056472A1 Piezoelectric transducer for the non-destructive testing of a structure comprising a hole |
| 05/07/2009 | US20090116775 Acoustic Emission Measuring Device, Power Transmission Device, and Rolling Bearing Device |
| 05/06/2009 | CN201233275Y Detection device for precision measuring throw amplitude value and frequency of high voltage line |
| 05/06/2009 | CN201233274Y Sound field testing system in vehicle |
| 05/06/2009 | CN201233273Y Blasting vibration meter |
| 05/06/2009 | CN201233272Y Ultrasonic detection device based on EP1C3T144 |
| 05/06/2009 | CN101426163A Vibration sensor and method for manufacturing the same |
| 05/06/2009 | CN101425853A Remote speech monitoring method |
| 04/30/2009 | WO2009016289A3 Device and method for monitoring the vibratory state of a rotating machine |
| 04/30/2009 | WO2007078433A3 Electrostatic acoustic transducer based on rolling contact micro actuator |
| 04/29/2009 | CN101419243A Isotropy equilibrium acceleration sensor |
| 04/29/2009 | CN101419051A Automatic temperature compensating current vortex flow sensor |
| 04/22/2009 | CN101414192A Structure vibration and noise control device without outside energy supply |
| 04/15/2009 | CN201221979Y Tuning machine for testing oscillating plate |
| 04/08/2009 | CN101403635A Infrasonic wave detection apparatus |
| 04/01/2009 | CN100473960C Vibration sensor |
| 03/31/2009 | US7509862 System and method for providing vibration detection in turbomachinery |
| 03/26/2009 | WO2009038579A2 Thermoelastic self-actuation in piezoresistive resonators |
| 03/26/2009 | WO2009037977A1 Elastic wave measuring device and method |
| 03/26/2009 | US20090078053 Method and Apparatus for Tracking a Rotating Blade Tip for Blade Vibration Monitor Measurements |
| 03/26/2009 | US20090078051 Method of On-Line Turbine Blade Slope and Sensor Position Verification |
| 03/25/2009 | EP2039540A2 System, tyre and method for determining the behaviour of a tyre in motion |
| 03/25/2009 | CN201213026Y Piezo-electric earthquake sensing device |
| 03/25/2009 | CN101394439A Method and terminal for automatically controlling vibration strength of terminal |
| 03/25/2009 | CN101393463A Vibration test and control device for low frequency mode of flexible moving structure |
| 03/24/2009 | US7508120 Piezoelectric element and method for manufacturing |
| 03/11/2009 | CN100468006C Resonant silicon micro mechanical sensor with auxiliary sensitive unit |
| 03/04/2009 | CN101379373A Electret capacitor type composite sensor |
| 03/04/2009 | CN100465593C A phase-lock closed loop system of resistance vibration pickup type silicon micro mechanical resonant sensors |
| 02/26/2009 | DE102007013466B4 Elektrischer Transformator The electrical transformer |
| 02/25/2009 | EP2027461A1 Device for non-destructive testing of a structure by vibratory analysis |
| 02/19/2009 | US20090045560 Engine natural vibration frequency detection method, active vibration isolation support device control method, engine natural vibration frequency detection apparatus, active vibration isolation support device control apparatus, active vibration isolation support device, and vibration frequency detection apparatus for vibrating body |
| 02/19/2009 | US20090044628 Vibration Sensor Array |
| 02/18/2009 | CN101368869A Generalized resonance composite sensor for vibration impact detection |
| 02/18/2009 | CN100462696C Audio phase detector |
| 02/12/2009 | WO2009019863A1 Absolute displacement detection method and absolute displacement sensor using the method |
| 02/12/2009 | WO2008024142A3 Industrial process device utilizing magnetic induction |
| 02/11/2009 | EP2021305A2 Industrial process device utilizing magnetic induction |
| 02/11/2009 | CN101365928A Sensor and system for monitoring structural health conditions |
| 02/05/2009 | WO2009016289A2 Device and method for monitoring the vibratory state of a rotating machine |
| 02/04/2009 | CN101358900A Instrument for measuring bearings |
| 01/28/2009 | EP2019298A1 Mechanical-electrical converting device and its manufacturing method |
| 01/28/2009 | CN101354283A Encapsulation structure of micro-nano bionic vector water sound sensor |
| 01/22/2009 | US20090021252 Metal detector |
| 01/20/2009 | CA2144169C Disposable sensing device with cutaneous conformance |
| 01/15/2009 | DE102007026288A1 Electroacoustic sensor without sensitive membrane, able to distinguish individual frequencies, is based on auditory principle of stereocilia |
| 01/14/2009 | CN101344576A Judging functional failure of electromechanical by speech recognition technology |
| 01/14/2009 | CN101344562A Test method and device for circuit printing plate component |
| 01/14/2009 | CN100451576C Resonant tunnelling bionic vector underwaster sensor |
| 01/08/2009 | US20090007672 Kit and method for constructing vibration suppression and/or sensing units |
| 01/02/2009 | DE19917372B4 Meßgerät zum Erfassen der Temperatur und der Schwingungen einer Oberfläche Measuring instrument for detecting the temperature and the vibration of a surface |
| 01/02/2009 | CA2605548A1 An acoustic wave sensor assembly utilizing a multi-element structure |
| 12/30/2008 | US7469595 Piezoelectric damage detection device |
| 12/24/2008 | EP2005126A2 Vibration sensor array |
| 12/24/2008 | CN201170746Y Flame-proof magnetoelectric type velocity sensor |
| 12/24/2008 | CN100445707C Piezoelectric vibration sensor |
| 12/18/2008 | DE102004009345B4 Brennkraftmaschinenklopfsensor und Anordnung für dessen Montage Engine knock sensor and arrangement for its assembly |
| 12/17/2008 | EP2003430A2 Method of manufacturing an ultrasonic sensor |
| 12/17/2008 | EP2002224A1 Vibration sensor having a diaphragm which can be caused to oscillate |
| 12/17/2008 | CN201166585Y Apparatus for detecting motor bearing oscillation |
| 12/17/2008 | CN101324462A Sensor and test device for testing tone key of musical box |
| 12/11/2008 | WO2008151176A1 System and method for bearing fault detection using stator current noise cancellation |
| 12/11/2008 | WO2008151141A1 Non-contact measurement system for accurate measurement of frequency and amplitude of mechanical vibration |
| 12/11/2008 | WO2008148172A1 Passive monitoring sensor system for use with mattress |
| 12/11/2008 | CA2689615A1 System and method for bearing fault detection using stator current noise cancellation |
| 12/10/2008 | CN101322258A A piezoelectric element and method for manufacturing |
| 12/04/2008 | WO2008091289A3 Instrumented component for use in an operating environment |
| 12/03/2008 | EP1897155B1 Acoustic wave detector and method for detecting a wave |
| 12/03/2008 | CN101315299A Electret vibration transducer |
| 12/03/2008 | CN100439882C Piezoelectric acoustic sensor |
| 12/02/2008 | CA2456566C System and method of measuring and classifying the impacts inside a revolving mill used in mineral grinding |
| 11/27/2008 | US20080289428 Ultrasonic sensor |
| 11/27/2008 | US20080289426 Structural health monitoring (shm) transducer assembly and system |
| 11/26/2008 | CN100437052C Knock sensor |
| 11/26/2008 | CN100437051C Tunnelling resonance microsound sensor |
| 11/19/2008 | CN201152880Y 4 core voltage output piezoelectric acceleration gauge |
| 11/19/2008 | CN201152779Y Intelligent grinding sound measurement apparatus |
| 11/19/2008 | CN201152778Y Electric monitor of ball grinder |
| 11/19/2008 | CN100434882C Static excitation resonator capacitor vibration pick-up structure |
| 11/12/2008 | EP1990611A1 Electret capacitor type composite sensor |
| 11/12/2008 | CN201149523Y Vibration transducer |
| 11/06/2008 | WO2008132419A1 High-frequency sensor system |
| 11/06/2008 | WO2008103288A3 Non-contact torque sensing for valve actuators |
| 11/06/2008 | DE19758469B4 Zieldiskriminator Zieldiskriminator |
| 11/06/2008 | DE10045847B4 Kavitationssensor Kavitationssensor |
| 10/29/2008 | CN201141869Y Special jig for shielded conductor connector for piezoelectric accelerometer |
| 10/29/2008 | CN101294844A Bending piezo-electricity type zinc oxide nano stick micromotor(MEMS) vibration transducer |
| 10/28/2008 | US7441321 Method of manufacturing ultrasound transducer device having acoustic backing |
| 10/23/2008 | WO2008126916A1 Sound source separating device and sound source separating method |
| 10/23/2008 | WO2008125071A1 Micromechanical sound emission measurement system |
| 10/23/2008 | WO2005031501B1 Sensors and systems for structural health monitoring |
| 10/14/2008 | US7434468 Porosity reference standard for ultrasonic inspection of composite materials |
| 10/08/2008 | CN101281057A Airflow detecting device |
| 10/07/2008 | US7430915 Vibration sensor |
| 10/02/2008 | US20080236284 Vibration Measurement System |