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8181532 |
Structural deflection and load measuring device
The present invention provides a structural deflection and load measuring device for mounting on an axle. The device includes at least one light beam emitting device connected to the axle and able...
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8182433 |
Medical apparatus system having optical fiber load sensing capability
Apparatus is provided for diagnosing or treating an organ or vessel, wherein a deformable body having at least two optical fiber sensors disposed in a distal extremity thereof is coupled to...
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8146441 |
Procedure for registering damage to a material
A procedure for registering damage to a material including a metallic matrix and ceramic particles embedded in it. A volume-increasing phase change of the particles is suppressed by the pressure...
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8087301 |
Optical systems and methods for determining tire characteristics
The invention is related to systems and methods for optically measuring conditions and characteristics related to vehicle tires. In one embodiment, a tire monitoring system comprises a grid, a...
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8082799 |
Method of forecasting the lifetime of structural parts
A method is provided for determining the extent of cyclic stress fatigue suffered by a component comprising the steps of: (i) obtaining a gauge material which undergoes a continued...
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8056422 |
Method and member for measuring stress distribution of natural bone, synthetic bone, or member attached to them
When visualizing the stress distribution of natural bone, synthetic bone, or a member attached to either thereof without omitted points, in order to measure accurately in a variety of modes using...
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8058869 |
Fiber laser magnetic field sensor
The device includes two supports and a primary conductive strip. The primary conductive strip includes a neutral surface, a first side, and a second side. The primary conductive strip is connected...
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8042412 |
Turbomachinery system fiberoptic multi-parameter sensing system and method
A fiberoptic multi-parameter sensing system for monitoring turbomachinery system shaft static and dynamic torques, vibration modes and associated operation status includes a multi-furcated fiber...
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8028586 |
Load cell and system for measuring forces based on optical spectra shifts
A load cell having an optical micro-resonator in a housing formed of high thermally conductive material. Upon application of a force to a surface of the housing, the micro-resonator is squeezed and...
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8006566 |
Screening of silicon wafers used in photovoltaics
A method for screening silicon-based wafers used in the photovoltaic industry is provided herewith.
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8006567 |
Stress history recording system
A stress history recording system for recording a stress history, which includes a light emitting section including a stress-stimulated luminescent material that emits light in response to a...
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7987729 |
Attachable member, attaching mechanism, and printer
An ink cartridge, which is releasably installed to a cartridge-installing section, includes a contact section which is brought into contact with the cartridge-installing section when the ink...
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7984656 |
NSMS flight laser detector system
A method includes rotating a rotor, measuring a rotor rotational time for the rotor to complete a revolution, determining a blade interval by dividing the rotor rotational time by a number of...
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7984659 |
Device and method for measuring compressive force of flexible linear body
A measurement device can detect a degree of bending of a linear body with a sensor when compressive force in a direction of longitudinal axis is applied to the linear body as a result of contact of...
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7963170 |
Pressure sensor
A pressure sensor is disclosed wherein pressure induced changes in birefringent properties of an optical sensing element are read out by transmission of at least one light beam. The pressure sensor...
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7961379 |
Pump probe measuring device and scanning probe microscope apparatus using the device
A pump probe measuring device (1) includes an ultrashort optical pulse laser generator (11) for generating a first ultrashort optical pulse train, which becomes a pump light, and a second...
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7918141 |
Local residual stress measurement and analysis for detection and prediction of damage in thermal barrier coatings
The present invention provides a method for evaluating degradation of a thermal barrier coating disposed on a turbine blade. The method includes measuring a residual stress of an outer surface...
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7896069 |
Method of applying a string of interconnected strain sensors to a cylindrical object
A string of interconnected strain sensors applied to a cylindrical object for monitoring deformation of the object. The string of interconnected strain sensors is applied in a selected zig-zag...
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7886612 |
Coated optical fibers
The invention relates to coated optical fibers comprising soft primary coatings and to such primary coatings for protecting glass optical fibers having a sufficient high resistance against...
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7856888 |
Fiber optic strain gage and carrier
The current invention relates to optical gages designed to measure strain on the surface of a test specimen. The gages of this invention is designed to be installed and used in a manner similar to...
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7784364 |
Optical sensor for measurement of static and dynamic torque
An optical static and dynamic torque sensor provides a measurement of torque, torque angle, shaft speed or shaft direction by optically detecting the overlapped position of spatially arranged...
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7770463 |
Shear stress measurement apparatus
A shear stress sensor for measuring the shear force of a fluid flowing along a wall. A floating member, flush with the wall, senses a shear force of the flowing fluid. The floating member is...
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7765861 |
Method of adhesion measurement at the interface between layers
The strength of adhesion between two layers is evaluated by applying a series of laser shocks directly to the surface of one of the layers. Adhesion strength is determined based on the wavelength...
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7743669 |
Load detecting sensor and collision detecting sensor using the same
A load detecting sensor includes a first member, a second member, and an optical fiber. The first member has a groove having a bottom portion and a column portion which defines the groove. The...
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7703331 |
Instrumented tabular device for transporting a pressurized fluid
The invention relates to an instrumented tubular device for transporting a pressurized fluid notably in the field of oil exploration and in that of the transport of gas or hydrocarbons. This device...
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7679730 |
Surface inspection apparatus and surface inspection method for strained silicon wafer
An image pickup device disposed in a predetermined position relative to a surface of a strained silicon wafer photographs the surface of the strained silicon wafer in a plurality of rotation angle...
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7658113 |
Lift measurement
A method of determining the lift generated by a lift-generating member is presented. The lift-generating member being coupled to a component within the lift load path with the lift load path...
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7646945 |
Structural member bend radius and shape sensor and measurement apparatus
Structural member bend radius sensor apparatus 90 comprises three fibre Bragg grating (FBG) strain sensors 102 provided within three optical fibres 14, 16, 18. The optical fibres 14, 16, 18 and the...
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7634948 |
Process and device for dynamic measurement of the axial deformation of a rotating hollow shaft
A process and device for dynamic measurement of the axial deformation of a rotating hollow shaft (10), a glass fiber segment (16) of a fiber optic sensor (18) being attached securely to a section...
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7617737 |
Adjustment of pitch and roll static torques in a disk drive head gimbal assembly
In a system and method for adjusting a static torque on a slider in a head-gimbal assembly, a substantially rigid mass is placed on an air-bearing surface (ABS) of a slider. A static attitude of...
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7610815 |
Testing of samples
A method of monitoring the surface of a sample under test is provided and the method comprises the steps of: illuminating the surface with light (20) polarised in a first direction; viewing light...
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7594443 |
Mechanically tunable optical-encoded force sensor
An optical-encoded force sensor is disclosed. The optical-encoded force sensor includes a cantilever probe having a probe tip, a set of reflective phase gratings and multiple nano-photonic...
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7583368 |
Method of enhancing measurement of stress in glass
A detection system for measuring glass that has been placed under strain and the resulting stress lines in the glass has a light source of individual elements configured to create a light...
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7578199 |
Apparatus and method suitable for measuring the displacement or load on an aircraft component
The load on an aircraft component, such as the load on a landing gear leg during braking, is measured with a contactless, all-weather displacement measuring system. The system includes a control...
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7571653 |
Stress measuring method and system
An energy beam is applied to an evaluation region of a sample, a phase distribution image of the energy beam transmitted to the sample in the evaluation region is obtained, and the obtained phase...
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7549337 |
Method for inspecting peeling in adhesive joint
A method is disclosed wherein a portion of a sensor part of an optical fiber sensor is embedded in an adhesive between two joined members, and peeling in an adhesive joint of the two members is...
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7530273 |
Modular fiber optic sensor
A modular fiber optic sensor that uses a light source to transmits light through at least one optical fiber to a sensor support. The sensor support is releasably attached to the optical fiber(s)...
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7526967 |
Measuring device for detecting stresses of a bearing arrangement
A measuring device for detecting stresses of a bearing arrangement. The stresses are measured based on elastic changes in shape. The inventive measuring device includes a light source, which is...
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7525545 |
System for displaying material characteristic information
A system for displaying graphical information indicative of a plurality of material characteristics for a portion of a part under test. Energy is directed at the selected portion of the part under...
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7520176 |
Method for real-time structure shape-sensing
The invention is a method for obtaining the displacement of a flexible structure by using strain measurements obtained by stain sensors. By obtaining the displacement of structures in this manner,...
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7509872 |
Stress and strain analysis method and its equipment
Provided are a stress analysis method and stress analysis equipment that enable a detailed stress measurement, by using both a photoelasticity measurement method and a stress measurement...
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7506549 |
Method and apparatus suitable for measuring the displacement or load on an aircraft component
The load on an aircraft component, such as the load on a landing gear leg during braking, is measured with a contactless, all-weather displacement measuring system. The system includes a control...
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7495749 |
Rapid method for sub-critical fatigue crack growth evaluation
In a method and system for evaluating sub-critical fatigue crack growth in a semiconductor device, a plurality of energy pulses generated by an energy source are repeatedly impinged onto the...
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7496454 |
High mast inspection system, equipment and method
An inspection system for removably mounting to a platform movable in relation to a generally upright mast for inspection of the mast has a mounting support assembly removably fixable to the...
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7487685 |
Strain measurement method and device
A non-contacting strain measurement method and system employs a laser light source for irradiating a test piece to provide a spectral pattern in spaced relationship from the test piece. The pattern...
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7487684 |
Glass-modified stress waves for separation of ultra thin films and nanoelectronics device fabrication
A device for generating a tensile force between a substrate and a coating, wherein the substrate has a thickness defined by a first side and a second side in a first axis, and the coating is...
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7461561 |
Apparatuses and methods for monitoring stress in steel catenary risers
The invention describes apparatuses and methods of monitoring fatigue, structural response, and operational limits in structural components. More particularly, the present invention relates to...
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7460964 |
Force vector reconstruction method using optical tactile sensor
The invention relates to a technique for reducing computation time for force vector calculation. A force vector reconstruction method that uses an optical tactile sensor, comprises a step for...
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7458277 |
System and method for sensing torque on a rotating shaft
A system and method relating to the measuring of torque in a rotating shaft is provided. An optical torque sensing system comprises a rotating shaft, wherein a sleeve of photo-elastic material...
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7444882 |
Material failure prediction/stress/strain detection method and system using deformation luminescence
A method and apparatus are provided for detecting strain, stress, fatigue and incipient failure in materials. A detector (e.g., a photomultiplier tube) is used to detect photonic emissions from a...
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