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Patent No. 5307162

Cloaking System Using Optoelectronically Controlled Camouflage

A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.

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Class 73/800 - Optical


Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the stress or strain indication includes
No. of applications: 74
Last issue date: 04/05/2012


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Application No.Application TitleIssue Date
20120082422ELECTRIC CABLE WITH STRAIN SENSOR AND MONITORING SYSTEM AND METHOD FOR DETECTING STRAIN IN AT LEAST ONE ELECTRIC CABLE
An electric cable includes a strain sensor longitudinally extending along the cable and including a strain optical fibre arranged within a bending neutral region surrounding and including a bending neutral longitudinal axis of the electric cable, and at least two longit...
04/05/2012
20120067134DISPLAY BENDER AND METHOD OF TESTING FLEXIBLE DISPLAY
Some embodiments include an apparatus for testing flexible displays. The apparatus can include: (a) a first clamp configured to receive a first end of the flexible display; (b) a second clamp configured to receive a second end of the flexible display, wherein the second...
03/22/2012
20110265578Local Stress Measurement
An optical metrology device determines the local stress in a film on a substrate. The metrology device maps the thickness of the substrate prior to processing. After processing, the metrology device determines the surface curvature of the substrate caused by the process...
11/03/2011
20110259115STRUCTURAL LOAD MONITORING USING COLLARS AND CONNECTING ELEMENTS WITH STRAIN SENSORS
A system and method for measuring loads on a pipe, including a pair of collars that can be secured around the outer surface of the pipe to be monitored in an axially spaced relationship; and a connecting element having a strain gauge is fixed to the collars such that wh...
10/27/2011
20110247427STRAIN SENSING WITH OPTICAL FIBER ROSETTES
One or more mechanical parameters of a structure subjected to a force or condition are measured using distributed, optical fiber sensing technology. At least a curved portion an optical fiber having is attached to an object. A distributed, optically-based, strain sensin...
10/13/2011
20110214508MONITORING THE STRUCTURAL INTEGRITY OF A WIND TURBINE BLADE
A method of monitoring the structural integrity of a wind turbine blade 1 is disclosed. The blade 1 has at least two shell portions 2a, 2b, forming the outer surface of the turbine blade 1. At least one web member 3
09/08/2011
20110154907Structural 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 to emit at least one light beam and at least one light position sensing d...
06/30/2011
20110044574METHODS AND SYSTEMS OF INSTALLING CABLE FOR MEASUREMENT OF A PHYSICAL PARAMETER
A method of installing a cable for the distributed measurement of a physical parameter, includes providing a cable adapted to measure a physical parameter at a plurality of points along the carrier tube, inserting the cable through a carrier tube, injecting a hardenable...
02/24/2011
20100326200Shear 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 mounted by support means to a base element that is placed in the wall, so that ...
12/30/2010
20100313668FIBER STRAIN SENSOR AND MEASUREMENT SYSTEM FOR REPEATED LARGE DEFORMATION
A measurement system (10) for detecting repeated large deformation comprising: a fiber optical strain sensor (12) including a flexible polymer optical fiber (POF) (20) in the form of a series of extended loops (40), the loops (40) bein...
12/16/2010
20100307257SENSOR ARRAY
An optical fibre strain sensor array comprises several sensor support panels spaced in its longitudinal direction and at least one connecting member extending in the longitudinal direction, which mechanically interconnects the sensor support panels. An optical fibre is ...
12/09/2010
20100307256SENSORY TRANSDUCER AND METHOD
A transducer including a housing; one or more pressure communicating configurations disposed within the housing; one or more selected pressure chambers in operable communication with the one or more pressure communicating configurations; an environmental chamber in oper...
12/09/2010
20100300209OPTICAL STRAIN GAUGE
The invention relates to a strain gauge, comprising at least one optical waveguide (5) fastened to a thin support (1). The optical waveguide (5) has at least one section (10) with a fiber Bragg grating (6), which serves the detection o...
12/02/2010
20100253650OPTICAL SENSOR FOR MEASURING A FORCE DISTRIBUTION
According to one aspect, the invention provides an optical sensor for measuring a force distribution, comprising a substrate; one or more light emitting sources and one or more detectors provided on the substrate, the detectors responsive to the light emitted by the sou...
10/07/2010
20100242619SYSTEM AND METHOD FOR PREVENTING STRAIN CAUSED ERRORS IN FIBER OPTIC SENSORS
An encapsulated fiber Bragg grating sensor is provided wherein the EFL of sensor as well as the coefficient of friction between the sensor and the encapsulating tubing is controlled to minimize measurement errors caused by tensile and compressive strains. A method of ma...
09/30/2010
20100154557DEVICE AND METHOD FOR MEASURING ELECTROMECHANICAL PROPERTIES AND MICROSTRUCTURE OF NANO-MATERIALS UNDER STRESS STATE
A device for measuring electromechanical properties and microstructure of nano-materials under stress state comprises two bimetallic strips placed on an insulated metal ring plated with insulating paint, wherein the two bimetallic strips are placed in parallel or V-shap...
06/24/2010
20100132477INTEGRATED DEVICE FOR MONITORING DEFORMATIONS OF AN ELECTRICALLY INSULATING PART AND METHOD FOR MANUFACTURING ONE SUCH DEVICE
An integrated device for monitoring an electrically insulating part comprising an optic fiber in which at least one Bragg grating is formed, the electrically insulating part being made from a composite material with a thermosetting matrix, and the optic fiber comprising...
06/03/2010
20100101335STRAIN SENSORS
A method of monitoring strain on a helicopter rotor blade that has several structural components comprises locating at least three strain sensors 2a, 2b, 2c on one of the structural components of the rotor blade, the positions o...
04/29/2010
20100076700SYSTEM FOR OPTICAL FIBER STRAIN MEASURE
A system measures the strain of an object. The system includes a laser source for generating an output radiation, a strainable optical fiber having first and second facets, and means for calculating a measure of a strain of the optical fiber. The first facet is coupled ...
03/25/2010
20100058877Coated 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 cavitation. In particular, the primary coatings have a cavitation strength at whi...
03/11/2010
20100037700LIFTING MEMBER WITH LOAD AND/OR STRESS MEASURING MEANS
A lifting member transmits all or part of the lifting force between a lifting appliance and a load to be lifted. The lifting member includes a proximal portion configured to be fixed to the lifting appliance; a distal portion designed to be connected to the load; a long...
02/18/2010
20100018321NSMS 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 blades carried on the rotor, establishing an active hold-off time interval as ...
01/28/2010
20090324409ROTOR BLADE MONITORING
A method of monitoring mechanical characteristics of helicopter rotor blades 1 comprises mounting at least one strain sensor 2 to at least one rotor blade 1 and measuring the mechanical load on the rotor blade as indicated by the strain sensor 2....
12/31/2009
20090282928Load 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 changes in shape and refractive index, thereby changing the resonant fre...
11/19/2009
20090217769STRUCTURAL MONITORING
Apparatus (10) for monitoring changes in the shape of a hollow structure (20) comprises a flexible elongate support (12), which includes several optical fibre strain sensors (14, 16, 18) each arranged to measure strain in the longitudinal dir...
09/03/2009
20090193906COMPOSITE FIBRE AND RELATED DETECTION SYSTEM
This invention relates to a composite fibre including at least a first and second component, wherein at least one of the components is an optical fiber, and the components are intertwined....
08/06/2009
20090192522FORCE SENSOR TEMPERATURE COMPENSATION
In one embodiment, a force sensor apparatus is provided including a tube portion having a plurality of radial ribs and at least one fiber optic strain gauge positioned over each rib of the plurality of radial ribs. The strain gauges are comprised of a negative thermo-op...
07/30/2009
20090173159Method for generation of THz frequency radiation and sensing of large amplitude material strain waves in piezoelectric materials
Strain waves of THz frequencies can coherently generate radiation when they propagate past an interface between materials with different piezoelectric coefficients. Such radiation is of detectable amplitude and contains sufficient information to determine the time-depen...
07/09/2009
20090157092RIBBED FORCE SENSOR
In one embodiment, a force sensor apparatus is provided including a tube portion having a plurality of radial ribs and a strain gauge positioned over each of the plurality of radial ribs, a proximal end of the tube portion that operably couples to a shaft of a surgical ...
06/18/2009
20090133505Shear 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 mounted by support means to a base element that is placed in the wall, so that ...
05/28/2009
20090126501FIBER 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 conventional electronic foil strain gages, but to have the advantages of ...
05/21/2009
20090114033Stress History Recording System
Provided is a stress history recording system for recording a stress history, which includes a light emitting means including a stress-stimulated luminescent material that emits light in response to a mechanical external force, and a recording means for recording a hist...
05/07/2009
20090019940Load 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 second member covers the groove of the first member so that a surrounded spac...
01/22/2009
20080236294MATERIAL 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 material under test. Data based on the detected photonic emissions is disp...
10/02/2008
20080196508Lift measurement
A method of determining the lift generated by a lift-generating member, the lift-generating member being coupled to a component within the lift load path with the lift load path component experiencing strain as a result of the lift generated by the lift-generating membe...
08/21/2008
20080150226SHEET MATERIAL INFORMATION ACQUIRING DEVICE AND SHEET MATERIAL PROCESSING APPARATUS INCLUDING SAME
A sheet member information acquiring device has a load-applying member configured to come into contact with the sheet member and to apply a load to the sheet member, a rotation bearing configured to hold the load-applying member rotatably around at least a rotation axis...
06/26/2008
20080092664Measuring Device For Detecting stresses Of A Bearing Arrangement
The invention relates to a measuring device for detecting stresses of a bearing arrangement, said stresses being measurable based on elastic changes in shape. The inventive measuring device comprises at least one light source which is directed onto at least one light pa...
04/24/2008
20080053238DEVICE AND METHOD FOR MEASURING ADHESION STRENGTH BETWEEN TWO OPTICAL ELEMENTS
A device for measuring adhesion strength between a first optical element and a second optical element includes a force gauge, a first magnet, and a second magnet. The second magnet is fixed to the force gauge. The first magnet and the second magnet are configured for ma...
03/06/2008
20080022780METHOD AND SYSTEM FOR IMPACT DETECTION OF AN IMAGING SYSTEM
A system and method for detecting at least one force, impact, shock, or vibration event on an imaging system. The system comprises a main assembly, a support assembly coupled to the main assembly, and at least one sensor coupled to the imaging system. The at least one s...
01/31/2008
20070227258Stress 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 distribution image is analyzed, whereby a stress distribution in the evalu...
10/04/2007
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