Patents
Patents for G01H 9 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means (3,383)
09/2003
09/09/2003US6618124 Optical microphone/sensor
09/04/2003WO2003073042A1 Nanoscale vibrometric measurement apparatus and method
09/03/2003EP1340582A1 Process and apparatus for the measure of the amplitude of a free oscillating capillary of a wire bonder
09/03/2003EP1340051A1 Circumferential strain attenuator
09/02/2003US6613601 Ultrananocrystalline diamond cantilever wide dynamic range acceleration/vibration/pressure sensor
08/2003
08/28/2003WO2003071309A1 Optical fibre sensors mounted on a cable
08/28/2003WO2003014674A3 Two delay coil sagnac-based sensor array
08/28/2003US20030160967 Nanoscale vibrometric measurement apparatus and method
08/28/2003US20030159498 Method and apparatus for detection of particles
08/26/2003US6611633 Coated fiber pressure sensors utilizing pressure release coating material
08/26/2003US6609425 Ultrasonic probe and ultrasonic diagnosis apparatus using the same
08/21/2003WO2003069278A1 Optical displacement sensor
08/21/2003CA2513203A1 Optical displacement sensor
08/20/2003CN1118691C Organic scotopic mechanical vibration/acceleration sensing structure and its preparing method
08/14/2003WO2003067509A1 Arrangement and method for measurement on a resonant oscillator, control thereof and setting of a pixel width
08/07/2003US20030149553 Characterizing, synthesizing, and/or canceling out acoustic signals from sound sources
08/06/2003EP1333245A1 Fine displacement detection device by sound or the like
08/06/2003EP1332356A1 Apparatus for acoustic detection of particles in a flow using a fibre optic interferometer
08/06/2003EP1332337A1 Multi-parameter interferometric fiber optic sensor
07/2003
07/31/2003WO2003062772A2 High sensitivity fibre optic vibration sensing device
07/29/2003US6598478 Micro-doppler microscope
07/17/2003WO2003059009A1 Detection of sound waves produced by a musical instrument
07/15/2003US6594290 Dynamic change detecting method, dynamic change detecting apparatus and ultrasonic diagnostic apparatus
07/15/2003US6593749 Wafer level method for probing micromechanical devices
07/10/2003US20030128366 Imaging systems
07/10/2003DE10204043C1 Mechanical oscillation signal detection and evaluation device has respective signal evaluation method assigned to each detected measuring point
07/09/2003EP1040726A4 Method of detecting atmospheric weather conditions
07/08/2003US6591025 Optical sensing system
07/08/2003US6590661 Optical methods for selectively sensing remote vocal sound waves
07/08/2003US6590194 Multi-fiber optic 2D-array device for sensing and localizing environment perturbation using speckle image processing
07/01/2003US6587207 Method for producing time marks at any points on moving components
06/2003
06/18/2003EP1015854B1 Hydrophone with compensation for statical pressure and method for pressure wave measurement
06/10/2003US6578165 Internal guardband for semiconductor testing
06/05/2003WO2003046475A1 Detection of transient phase shifts in any optical wave front with photorefractive crystal and polarized beams
06/04/2003CN1110692C Semiconductor laser measurer of shock
05/2003
05/22/2003US20030094567 Opto-electric pick-up for string instruments
05/15/2003US20030089174 Micro-doppler microscope
05/14/2003EP1310801A1 Seismic fiber laser sensor
05/13/2003US6563967 Fiber optic displacement sensor
04/2003
04/24/2003US20030075677 Multi-mode vibration sensor laser
04/22/2003US6550342 Circumferential strain attenuator
04/17/2003WO2002054026A3 Multi-mode vibration sensor laser
04/17/2003US20030074145 Laser doppler vibrometer for remote assessment of structural components
04/17/2003US20030072219 Laser velocimetry detection of underwater sound
04/15/2003US6549488 Fiber-optic hydrophone
04/10/2003WO2002086539A3 Method and apparatus for probing objects in motion
04/08/2003US6545762 Method of investigating vibrations and an apparatus therefor
04/08/2003CA2270095C Apparatus for and method of using optical interference of light propagating through an optical fiber loop
04/01/2003US6542857 System and method for characterizing synthesizing and/or canceling out acoustic signals from inanimate sound sources
04/01/2003US6542245 Dynamic change detecting method, dynamic change detecting apparatus and ultrasonic diagnostic apparatus
03/2003
03/27/2003US20030060708 Ultrasonic probe and ultrasonic diagnosing apparatus using the same
03/19/2003EP1084590A4 Folded sagnac sensor array
03/18/2003US6535828 Method and apparatus for visualizing elastic wave propagation in a solid substance
03/13/2003US20030048082 Method and system for non-contact sensing of motion of a roller drum
03/12/2003CN1401992A Method and apparatus for measuring sound field distribution image using sonic chemiluminescence imaging
03/06/2003US20030043697 Apparatus and method for processing optical signals from two delay coils to increase the dynamic range of a sagnac-based fiber optic sensor array
03/06/2003US20030043696 Amplified tree structure technology for fiber optic sensor arrays
03/04/2003US6529444 Folded sagnac sensor array
02/2003
02/27/2003WO2003016862A2 Method and apparatus for generating specific frequency response for ultrasound testing
02/27/2003US20030038946 Phase difference calculation method, device, and system using optical fiber ring interference sensor
02/27/2003US20030037616 Method for vibration measurement and interferometer
02/20/2003WO2003014774A2 Amplified tree structure technology for fiber optic sensor arrays
02/20/2003WO2003014674A2 Two delay coil sagnac-based sensor array
02/20/2003US20030035344 Fiber-optic hydrophone
02/20/2003US20030035343 Optical microphone/sensor
02/20/2003US20030033882 Method and apparatus for generating specific frequency response for ultrasound testing
02/18/2003US6522797 Seismic optical acoustic recursive sensor system
02/13/2003WO2003012458A1 High performance fiber optic accelerometer
02/04/2003US6515939 Pulse sampled optical fiber hydrophone array (U)
01/2003
01/30/2003US20030020919 High performance fiber optic accelerometer
01/28/2003US6512859 Level comprising vibration detecting means, wherein number of captured image signals by computing processing section is varied to increase or decrease depending on magnitude of compensator mirror amplitude of vibrations detected
01/23/2003US20030016898 Variable coupler fiberoptic sensor and sensing apparatus using the sensor
01/16/2003US20030014199 System and methods for detecting fault in structure
01/16/2003US20030010128 Method and system for processing laser vibrometry data employing bayesian statistical processing techniques
01/09/2003WO2003002956A1 Device and method for vibration measurement
01/09/2003US20030007656 Device for detecting pressure fluctuations, display device, recording device and sound reproduction system
01/09/2003US20030005816 Self-aligning ultrasonic displacement sensor system, apparatus and method for detecting surface vibrations
01/07/2003US6505130 Laser doppler vibrometer for remote assessment of structural components
01/02/2003US20030002769 Quenching laser noise in a multimode fiber sensor system
12/2002
12/27/2002WO2002103305A1 Inverse corner cube for non-intrusive three axis vibration measurement
12/27/2002WO2001077694A9 Ultrananocrystalline diamond cantilever wide dynamic range acceleration/vibration/pressure sensor
12/27/2002CA2450874A1 Inverse corner cube for non-intrusive three axis vibration measurement
12/26/2002US20020198690 System and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources
12/26/2002US20020196447 Apparatus for and method of using optical interference of light propagating through an optical fiber loop
12/24/2002US6498853 Echo-cancelling optical microphone
12/19/2002US20020189361 Inverse corner cube for non-intrusive three axis vibration measurement
12/18/2002EP1266186A1 Method for vibration measurement and interferometer
12/17/2002US6496264 Fiber optic acoustic sensor with specifically selected flexural disks
12/17/2002US6494836 Method of generating image data and ultrasonic diagnostic apparatus using the same
12/12/2002WO2002099412A1 Optical ultrasonic measurement
12/12/2002WO2002075261A3 Method for monitoring the oscillatory characteristics of a microfabricated resonant mass sensor
12/12/2002US20020186380 System and method for high-speed laser detection of ultrasound
12/05/2002US20020180452 Wafer level method for probing micromechanical devices
12/04/2002CN1095536C Instrument for measuring shift and vibration of object by polarized light interfrence of optical fibre
12/03/2002US6490047 System and method for laser ultrasonic bond integrity evaluation
11/2002
11/28/2002WO2002095342A1 Device for detecting pressure fluctuations, display device, recording device and sound reproduction system
11/27/2002EP1260116A1 Folded sagnac sensor array
11/26/2002US6486962 Method and apparatus for assessing material properties of sheet-like materials
11/26/2002US6486959 Dynamic holographic velocimeter for the measurement of vibrations
11/21/2002WO2002063237A3 Interferometer
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