| 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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| 02/05/2014 | CN103557928A Sound detection equipment based on laser diffraction principle |
| 02/05/2014 | CN103557927A Sound detection device for conducting detection by means of sounds sent by sound source |
| 01/29/2014 | CN203414165U Laser measurement system for reflection and transmission coefficients of ultrasonic materials |
| 01/29/2014 | CN203414164U Vibration detection device for bubble flow passage with controllable state of flow field |
| 01/29/2014 | CN103542926A Optical-fiber micro-electro-mechanical hydrophone and production method thereof |
| 01/29/2014 | CN103542925A Quasi-distributed optical vibrating sensing device |
| 01/23/2014 | WO2014014378A1 System for monitoring a technical installation |
| 01/22/2014 | CN103528782A Thin-walled structure part vibration test device and method based on piezoelectric ceramic vibration exciter |
| 01/22/2014 | CN103528668A Physical-simulation test processing system for microvibration of refrigerating machine and test method thereof |
| 01/22/2014 | CN103528667A Laser scanning based cylindrical shell modal shape testing device and method |
| 01/22/2014 | CN103528666A Long-distance optical fiber vibration detection device and method on basis of Sagnac interference |
| 01/22/2014 | CN103528665A Novel Fabry-Perot interference MEMS (Micro Electro Mechanical System) sound wave sensor |
| 01/22/2014 | CN103528664A Distributed type optical fiber vibration sensing system |
| 01/16/2014 | WO2014011291A1 Doppler tracking in presence of vehicle velocity uncertainty |
| 01/15/2014 | CN203396477U Wind turbine generator blade on-line detecting device |
| 01/08/2014 | EP2682722A1 Method for detecting deviation |
| 01/08/2014 | CN103499385A Novel high-precision double-frequency simultaneous measurement laser heterodyne interference phase vibration measuring light path |
| 01/08/2014 | CN103499384A Novel double-frequency laser heterodyne interference phase vibration measuring light path |
| 01/08/2014 | CN103499383A Self-correlation positioning method for improving positioning accuracy of optical fiber vibration sensor |
| 01/01/2014 | CN203376053U POTDR based novel distributed optical fiber vibration sensing system |
| 01/01/2014 | CN203376052U Vibration damping mechanism used for optical fiber hydrophone |
| 01/01/2014 | CN103492843A Method and device for the optical non-contact oscillation measurement of an oscillating object |
| 01/01/2014 | CN103492842A All-optical hydrophone that is not sensitive to temperature or static pressure |
| 01/01/2014 | CN103487133A Method and device for improving signal to noise ratio of laser micro-vibration sensing system |
| 01/01/2014 | CN103487132A Gravel buried type structure and method for amplifying optical fiber vibration sensing signals |
| 01/01/2014 | CN103487131A Pipe penetrating type optical fiber structure and method for amplifying vibration signals sensed by optical fiber |
| 01/01/2014 | CN103487130A Stand-column-buried type structure and method for amplifying optical fiber vibration induction signals and construction technology |
| 01/01/2014 | CN103487129A Point contact type ultrasonic wave sensor |
| 12/26/2013 | US20130340232 Method of fabricating an optical-fiber-compatible sensor |
| 12/25/2013 | CN103471704A Optical fiber sensing system and method for measuring oscillation of rotary machine rotor |
| 12/25/2013 | CN103471703A Non-aliasing reconstruction method of high-speed leaf undersampled leaf apex vibration signals |
| 12/25/2013 | CN103471702A Fiber grating vibrating sensor with temperature insensitivity, tunable damping and high precision |
| 12/25/2013 | CN103471701A Optical fiber acoustic sensor and optical fiber acoustic detection method |
| 12/25/2013 | CN103465935A Early warning method for railway rockfall |
| 12/25/2013 | CN103465934A Early warning method for railway rockfall |
| 12/25/2013 | CN102519378B Device for measuring bending and torsional vibration of hinged plate of phase-sensitive detector (PSD) sensor and method for device |
| 12/19/2013 | US20130333477 Measuring system |
| 12/19/2013 | US20130333476 Method of measuring acoustic distribution and distributed acoustic sensor |
| 12/19/2013 | US20130333472 Ultrasound Inspection System of Limited Access Composite Structures |
| 12/19/2013 | DE102012210309A1 Positionsmesseinrichtung The position measuring device |
| 12/18/2013 | EP2673604A2 Vibration sensor |
| 12/18/2013 | EP2673603A2 Method for monitoring the condition of a vibration sensor |
| 12/18/2013 | EP2434319B1 Method of fabricating an optical structure on an optical fiber |
| 12/18/2013 | CN203349921U New high-sensitivity fiber vibrating wire micro vibration sensor |
| 12/18/2013 | CN103459993A Method for monitoring the condition of a vibration sensor |
| 12/18/2013 | CN103459992A Vibration sensor |
| 12/18/2013 | CN102865914B Distributed optic fiber vibrating sensor |
| 12/17/2013 | US8607635 Device for measuring the relative alignment of two articles, method for determining a quality characteristic and vibration measurement device and method |
| 12/12/2013 | WO2013183302A1 Acoustooptic imaging device |
| 12/12/2013 | WO2013183247A1 Acoustooptic imaging device |
| 12/11/2013 | EP2671057A1 Ultrasound detector and detecting device for optoacoustic or thermoacoustic imaging |
| 12/11/2013 | CN203337256U Resonance detection device |
| 12/11/2013 | CN203337255U Fiber vibration sensor based on sequence cone structure |
| 12/11/2013 | CN103438982A Shake monitoring system based on Brillouin distributed optical fiber sensing |
| 12/11/2013 | CN103438981A Vibration sensing optical cable for regional optical fiber vibration sensing system |
| 12/11/2013 | CN103438980A Method and device for liquid surface wave detection based on linear array CCD and linear infrared laser |
| 12/05/2013 | US20130319123 Photoacoustic Probe |
| 12/05/2013 | US20130319121 Distributed Acoustic Sensing |
| 12/05/2013 | DE102009043661B4 Vorrichtung zur Visualisierung von Biegewellen-Schwingungen bei Schallgebern auf Biegewellenbasis Apparatus for visualization of bending wave oscillations in sounders on bending wave base |
| 12/04/2013 | CN103424177A Method and device for improving sensitivity of reflecting-type laser vibration measurement system |
| 12/04/2013 | CN103424176A Bubble flow channel vibration detecting device with controllable flow field state |
| 12/04/2013 | CN103424175A Bridge amplitude real-time monitoring device based on laser modulation |
| 12/03/2013 | US8599649 Laser-based method of detecting underwater sound through an ice layer |
| 11/27/2013 | CN203310508U Piston type fiber grating vibration sensor |
| 11/27/2013 | CN103411661A Multi-zone power adaptive type high-sensitivity optical fiber vibration sensing method and multi-zone power adaptive type high-sensitivity optical fiber vibration sensing system |
| 11/27/2013 | CN103411660A Optical fiber distributed type sound wave monitor system |
| 11/21/2013 | WO2013172020A1 Photoacoustic vibration meter |
| 11/21/2013 | WO2013171460A1 Radiation detector |
| 11/21/2013 | US20130305827 Apparatus for monitoring a rotating machine part |
| 11/20/2013 | EP1961260B1 Apparatus for measuring acoustic pressure |
| 11/20/2013 | CN203301107U Intelligent shockproof hammer based on optical fiber Bragg grating |
| 11/20/2013 | CN203298863U Vibration sensor |
| 11/20/2013 | CN203298862U Optical fiber vibration measuring system with low loss and subnano-resolution |
| 11/20/2013 | CN103398771A Distributed type optic fiber vibration-sensing polarization control system |
| 11/20/2013 | CN103398731A Mach-Zehnder optical fiber sensing positioning method for time difference measuring based on DSP (Digital Signal Processor) |
| 11/20/2013 | CN102607693B Acousto-optic modulation detection device and detection method for vibration performance of optical table |
| 11/20/2013 | CN102419252B Optical fiber online type detection device of gear box of high-speed train |
| 11/20/2013 | CN101755203B Pre-amplifier for detection lasers within laser ultrasonic inspection systems |
| 11/13/2013 | CN103389154A Method and device for measuring torsional frequency of quartz pendulous reed on basis of laser triangulation method |
| 11/13/2013 | CN102706438B System for monitoring vibration frequency of high-voltage transmission conductor on line |
| 11/07/2013 | US20130291643 Detecting the direction of acoustic signals with a fiber optical distributed acoustic sensing (das) assembly |
| 11/07/2013 | US20130291642 Fibre Optic Distributed Sensing |
| 11/06/2013 | CN102829855B Method and device for measuring minute amplitude vibration of laser focused measuring head |
| 11/06/2013 | CN102636250B Optical fiber vector vibration sensor |
| 11/06/2013 | CN102494755B Unsteady sound field separation method |
| 10/30/2013 | EP2656112A2 Detecting the direction of acoustic signals with a fiber optical distributed acoustic sensing (das) assembly |
| 10/30/2013 | CN203259245U Laser key phase device |
| 10/24/2013 | WO2013157228A1 Photoacoustic imaging apparatus |
| 10/24/2013 | US20130279294 Nonlinear imaging with dual band pulse complexes |
| 10/24/2013 | US20130276542 Light output calibration in an optoacoustic system |
| 10/23/2013 | CN103364072A Wind turbine generator blade on-line detecting method and device |
| 10/23/2013 | CN103364071A Thin-wall cylinder modal test system and method for single-point laser continuous scanning vibration test |
| 10/23/2013 | CN103364070A Fiber bragg grating vibration sensing system based on volume phase grating demodulation |
| 10/23/2013 | CN103364069A Non-contact rotating vane vibration testing method based on positioning without rotating speed |
| 10/23/2013 | CN103364068A Vibration measuring device and method |
| 10/16/2013 | CN203241143U Online motor vibration monitoring device based on laser Doppler effect |
| 10/16/2013 | CN203241142U High-sensitivity optical fibre hydrophone |
| 10/16/2013 | CN203241141U A hydrophone system based on asymmetrically-distributed feedback fiber laser device arrays |
| 10/16/2013 | CN103353341A Fiber bragg grating vibration sensing optical cable laying method |
| 10/16/2013 | CN102445265B Method and system for measuring amplitude curve of mechanical vibration |