165752 ⎘
Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors the vibrations causing a variation in the relative position of the end of a fibre and another element
INFRASTRUCTURE MONITORING SYSTEMS AND METHODS
#2OPTICAL COMMUNICATION UNDERGROUND EQUIPMENT LOCATION MAPPING SYSTEM, OPTICAL COMMUNICATION UNDERGROUND EQUIPMENT LOCATION MAPPING METHOD, AND OPTICAL COMMUNICATION UNDERGROUND EQUIPMENT LOCATION MAPPING DEVICE
#3PHOTONIC SHOCK AND IMPULSE (PSI) GAUGE
#4SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM
#5OPTICAL FIBER REAL-SPACE DISTRIBUTION CALCULATION SYSTEM, REAL-SPACE DISTRIBUTION CALCULATION METHOD, AND COMPUTER-READABLE MEDIUM
#6Method and system for measuring strain rate at a scale shorter than gauge length
#7OPTICAL FIBER SENSING SYSTEM, OPTICAL FIBER SENSING EQUIPMENT, AND UNMANNED AERIAL VEHICLE ALLOCATION METHOD
#8MULTISPAN OPTICAL FIBER SYSTEM AND TECHNIQUES FOR IMPROVED DISTRIBUTED ACOUSTIC SENSING
#9SLOPE DETECTION APPARATUS AND METHOD BASED ON DISTRIBUTED OPTICAL FIBER SENSING
#10Homodyne time-domain acousto-optic imaging for low-gain photodetectors
#11Electronic module including optical motion sensor
#12AUTOMATIC FIBER END POINT DETECTION USING COHERENT OPTICAL TIME DOMAIN REFLECTOMETRY
#13DUAL ACOUSTIC PRESSURE AND HYDROPHONE SENSOR ARRAY SYSTEM
#14OUTDOOR APPLICATION OF DISTRIBUTED FIBER OPTIC SENSING / ACOUSTIC SENSING
#15OPTICAL FIBER SENSING SYSTEM, OPTICAL FIBER SENSING METHOD, AND OPTICAL FIBER SENSING APPARATUS
#16Position detection device and position detection method
#17Optical cable
#18Optical fiber sensing system, optical fiber sensing equipment, and unmanned aerial vehicle allocation method
#19Signal processing algorithm for detecting red palm weevils using optical fiber
#20Optical fiber sensing system, measuring device, and measuring method
#21SYSTEM AND METHOD FOR DETECTING VIBRATIONS IN THE PERIPHERY OF AN OPTICAL FIBRE
#22Diaphragm-based fiber acoustic sensor
#23OPTICAL MANDREL, OPTICAL-FIBER ASSEMBLY INCLUDING AN OPTICAL MANDREL, AND SYSTEM FOR DETECTING AN ACOUSTIC SIGNAL INCIDENT ON AN OPTICAL-FIBER ASSEMBLY
#24Multiple lane real-time traffic monitor and vehicle analysis using distributed fiber sensing
#25Traffic monitoring apparatus and method of using the same
#26Extinction ratio free phase sensitive optical time domain reflectometry based distributed acoustic sensing system
#27Micro-optomechanical system and method for the production thereof
#28DUAL ACOUSTIC PRESSURE AND HYDROPHONE SENSOR ARRAY SYSTEM
#29Uni-directional signal transmit method using distributed fiber sensing
#30Method and system for determining whether an event has occurred from dynamic strain measurements
#31Distributed fibre optic sensing
#32Optical mandrel, optical-fiber assembly including an optical mandrel, and system for detecting an acoustic signal incident on an optical-fiber assembly
#33Apparatus and methods for non-contact damping of optical fiber vibration
#34Low crosstalk, common path, dual ring sagnac interferometer for disturbance sensing
#35System and method for determining structural characteristics of a machine tool
#36Systems and methods to improve distributed acoustic sensing properties of optical fibers
#37Directional sensitive fiber optic cable wellbore system
#38Directional sensitive fiber optic cable wellbore system
#39Diaphragm-based fiber acoustic sensor
#40Directional sensitive fiber optic cable wellbore system
#41Phase-front-modulation sensor
#42Method and system for determining whether an event has occurred from dynamic strain measurements
#43DUAL ACOUSTIC PRESSURE AND HYDROPHONE SENSOR ARRAY SYSTEM
#44Distributed parameter measurements using multiple optical sources
#45Photoacoustic chemical detector
#46Detecting broadside acoustic signals with a fiber optical distributed acoustic sensing (DAS) assembly
#47Optical fiber sensor system for strain detection
#48Distributed fiber optic acoustic detection device
#49Sensing systems and methods with phase unwrapping based on a dynamic phase change model
#50Detecting broadside acoustic signals with a fiber optical distributed acoustic sensing (DAS) assembly
#51Method and structure for diminishing signal interference of transmission path of optical fibre interference system
#52Closed loop control techniques for displacement sensors with optical readout
#53Device for measuring vibration amplitudes of the blade tips in a turbomachine
#54Detecting broadside acoustic signals with a fiber optical distrubuted acoustic sensing (DAS) assembly
#55Detecting the direction of acoustic signals with a fiber optical distributed acoustic sensing (DAS) assembly
#56Multi-channel laser interferometric method and apparatus for detection of ultrasonic motion from a surface
#57Fiber optic sensor using transmissive grating panel and mirror
#58Acoustic-wave sensor, acoustic-wave sensor array, and ultrasonic imaging apparatus
#59Systems and methods for measuring turbine blade vibratory response
#60Fiber optic MEMS seismic sensor with mass supported by hinged beams
#61High bandwidth fiber optic vibration sensor
#62Apparatus comprising a high-signal-to-noise displacement sensor and method therefore
#63Optical waveguide vibration sensor for use in hearing aid
#64Micro-optical sensor system for pressure, acceleration, and pressure gradient measurements
#65Fiber tip based sensor system for measurements of pressure gradient, air particle velocity and acoustic intensity
#66Patch-type extrinsic Fabry-Perot interferometric fiber optic sensor and real-time structural vibration monitoring method using the same