| Patents for G01H 9 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means (3,383) |
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| 07/09/2008 | CN201083536Y Optic cable vibration detecting device capable of positioning |
| 07/09/2008 | CN201083500Y Automatic tuning control F-P optical fiber sensor |
| 07/09/2008 | CA2624790A1 Improved photonic crystal structure sensor |
| 07/03/2008 | WO2007126475A3 Fiber optic mems seismic sensor with mass supported by hinged beams |
| 07/02/2008 | CN101210937A Optical fibre grating three-dimensional acceleration /vibration sensor |
| 07/02/2008 | CN101210852A Optical fiber grating sonic device |
| 07/02/2008 | CN101210842A Static pressure self-compensation optical fibre grating sonic device |
| 07/02/2008 | CN101210833A Optical fibre strain disk and its manufacture method |
| 07/02/2008 | CN101210832A Optical fiber grating sonic device |
| 07/02/2008 | CN100399003C Laser method for measuring vibration displacement of rolling bearing |
| 06/25/2008 | CN100397052C Ultrasonic receiver |
| 06/18/2008 | CN201075028Y High sensitivity fiber grating underwater sound sensor |
| 06/12/2008 | WO2008070505A1 Two way device free communications system |
| 06/11/2008 | EP1929249A1 Single piece fabry-perot optical sensor and method of manufacturing the same |
| 06/04/2008 | CN201069399Y Device for detecting and control liquid boiling |
| 05/22/2008 | WO2008059487A1 Multi-phase interferometer |
| 05/22/2008 | WO2008013595B1 Transducer mandrel with attachment for holding fiber bragg grating mounting collar |
| 05/21/2008 | EP1922537A1 Method for determination of strain distribution in components |
| 05/20/2008 | US7373823 Method for determination of the stress on blades of a turbine machine during operation and corresponding device for carrying out said method |
| 05/20/2008 | CA2401983C Folded sagnac sensor array |
| 05/14/2008 | CN100387933C A multi-fiber optic 2D-array device for sensing and localizing environment perturbation using speckle image processing |
| 04/30/2008 | EP1915592A1 Method and apparatus for direct detection of signals from a differential delay heterodyne interferometric system |
| 04/30/2008 | DE19848269B4 Elektronisches Nivelliergerät Electronic leveling |
| 04/22/2008 | US7362033 Surface-acoustic-wave device |
| 04/17/2008 | WO2008009442A8 Ultrasonic probe and method for the optical detection of ultrasonic waves |
| 04/16/2008 | EP1912050A1 Method and apparatus for acoustic sensing using multiple optical pulses |
| 04/16/2008 | EP1912049A1 Method and apparatus for acoustic sensing using multiple optical pulses |
| 03/27/2008 | WO2008013595A3 Transducer mandrel with attachment for holding fiber bragg grating mounting collar |
| 03/26/2008 | CN101149275A Single light source resonance sensor for excitation and vibration testing |
| 03/18/2008 | US7345953 Flextensional vibration sensor |
| 03/18/2008 | US7345952 Optical fibre sensors mounted on a cable |
| 03/13/2008 | WO2008011055A8 Fiber laser for ultrasonic laser testing |
| 03/13/2008 | WO2008009442A3 Ultrasonic probe and method for the optical detection of ultrasonic waves |
| 03/12/2008 | EP1110065B1 Seismic sensing and acoustic logging systems using optical fiber, transducers and sensors |
| 03/06/2008 | US20080053235 Microscopic acoustic radiation detecting apparatus and method |
| 03/05/2008 | EP1894330A2 Shielded communication transducer |
| 03/05/2008 | CN101135577A Automatic tuning control F-P fiber optic sensor |
| 03/05/2008 | CN100373146C Precision detecting method for random vibration of isolation mounting |
| 02/20/2008 | CN201025454Y Noise annunciator |
| 02/19/2008 | CA2337267C Dynamic holographic velocimeter for measuring vibrations |
| 02/14/2008 | US20080034866 Device and method using asymmetric optical resonances |
| 02/07/2008 | DE102006033229A1 Ultraschallsonde und Verfahren zur optischen Detektion von Ultraschallwellen Ultrasonic probe and method for optical detection of ultrasound waves |
| 02/06/2008 | CN101118176A Passive optical fiber grating submarine sound signal sensor and making method thereof |
| 02/05/2008 | US7325456 Interrogation network patches for active monitoring of structural health conditions |
| 01/31/2008 | WO2008012500A1 Flexural disc fiber optic sensor and method of forming same |
| 01/31/2008 | WO2008012497A1 Flexural disc fiber optic sensor |
| 01/30/2008 | EP1704394B1 Improvements in and relating to accelerometers |
| 01/30/2008 | CN100364482C Ultrasonic diagnostic apparatus |
| 01/29/2008 | US7322244 Interrogation system for active monitoring of structural conditions |
| 01/24/2008 | WO2008011055A1 Fiber laser for ultrasonic laser testing |
| 01/24/2008 | WO2008009442A2 Ultrasonic probe and method for the optical detection of ultrasonic waves |
| 01/24/2008 | CA2657790A1 Fiber laser for ultrasonic laser testing |
| 01/23/2008 | EP1155293B1 Method for producing time marks at any points on moving components |
| 01/22/2008 | CA2469444C Optical accelerometer or displacement device using a flexure system |
| 01/17/2008 | US20080011086 System for diagnosing and monitoring structural health conditions |
| 01/10/2008 | WO2008003224A1 An optical fiber control system for safety early-warning |
| 01/10/2008 | WO2007087093A3 Rugged fiber optic towed array |
| 01/10/2008 | US20080007715 Seismic Exploration |
| 01/10/2008 | CA2664010A1 An optical fiber control system for safety early-warning |
| 01/09/2008 | EP1875176A2 High-sensitivity fiber-compatible optical acoustic sensor |
| 01/08/2008 | US7317994 Method and apparatus for signal signature analysis for event detection in rotating machinery |
| 01/03/2008 | US20080004861 System and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources |
| 01/02/2008 | EP1805540A4 Optical sensor fiber with protective jacketing layers |
| 12/27/2007 | WO2007130744A3 Tri axis high frequency fiber optic acoustic sensor |
| 12/18/2007 | CA2500045C Hydrophone mandrel for precise placement of gratings |
| 12/13/2007 | US20070283761 Permanently installed in-well fiber optic accelerometer-based sensing apparatus and associated method |
| 12/04/2007 | US7302852 Vibration measuring and monitoring system |
| 11/22/2007 | DE102006023316A1 Vibration sensor for determining vibration or oscillation of test object e.g. production machine, has optical sensor determining characteristic of light that passes from light input to output point in resting condition |
| 11/20/2007 | CA2397329C Circuitry for signal measurement |
| 11/15/2007 | WO2007130744A2 Tri axis high frequency fiber optic acoustic sensor |
| 11/15/2007 | US20070265808 Systems and methods of prognosticating damage for structural health monitoring |
| 11/15/2007 | US20070265806 Systems and methods of generating diagnostic images for structural health monitoring |
| 11/15/2007 | CA2651044A1 Tri axis high frequency fiber optic acoustic sensor |
| 11/13/2007 | US7295493 Pressure tolerant fiber optic hydrophone |
| 11/13/2007 | US7293463 Acoustoelectric conversion device |
| 11/08/2007 | US20070260427 Systems and methods for identifying damage in a structure |
| 11/08/2007 | US20070260425 Systems and methods of generating diagnostic images for structural health monitoring |
| 11/08/2007 | US20070258331 Tri axis high frequency fiber optic acoustic sensor |
| 11/08/2007 | US20070258330 Seabed seismic station packaging |
| 11/07/2007 | EP1851519A1 Polarization diversity for optical fiber applications |
| 11/07/2007 | CN200972412Y Laser self-mixing interference vibration pickup |
| 10/31/2007 | DE102006003877B4 Vibrometer Vibrometer |
| 10/31/2007 | CN101065652A Opto-acoustic pressure sensor |
| 10/23/2007 | US7286964 Methods for monitoring structural health conditions |
| 10/23/2007 | US7286241 System and method for high-speed laser detection of ultrasound |
| 10/16/2007 | US7283948 System and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources |
| 10/16/2007 | US7283426 Method and apparatus for detecting submarines |
| 10/16/2007 | US7282697 High sensitivity fibre optic vibration sensing device |
| 10/16/2007 | US7281429 Optical hydrophone for a shock-wave field with long service life |
| 10/16/2007 | US7281428 Diagnostic system for monitoring structural health conditions |
| 10/11/2007 | WO2007113810A1 System and method for optical sensing of surface motions |
| 10/11/2007 | WO2007113495A1 Fibre optic sensor package |
| 10/04/2007 | DE102006013345A1 Electro-acoustic transducer e.g., microphone, for converting e.g. speech, into electrical signal, has base plate reflecting impinging sound, where light beam is modulated by sound according to frequency and amplitude of sound |
| 10/03/2007 | EP1367855B1 Vibration detector |
| 10/02/2007 | US7277642 Fine displacement detection device by sound or the like |
| 09/19/2007 | CN101038207A System and method for remote monitoring of vibration in machine |
| 09/11/2007 | CA2302775C Apparatus and method for measuring and imaging traveling waves |
| 09/06/2007 | US20070204671 Optical techniques and system for 3-D characterization of ultrasound beams |
| 09/06/2007 | DE10085129B4 Seismische Abtastvorrichtung Seismic scanning |
| 08/29/2007 | EP1110066B1 Seismic optical acoustic recursive sensor system |