Abstract:
The present application provides a fiber optic sensor system. The fiber optic sensor system may include a small diameter bellows, a large diameter bellows, and a fiber optic pressure sensor attached to the small diameter bellows, Contraction of the large diameter bellows under an applied pressure may cause the small diameter bellows to expand such that the fiber optic pressure sensor may measure the applied pressure.
Abstract:
A waveguide (116) fabrication method includes depositing a photodefinable copolymer material (14) comprising methyl methacrylate, tetrafluoropropyl methacrylate, and an epoxy monomer; fixing optical elements (10, 12) relative to the copolymer material; sending light through at least one of the optical elements and copolymer material towards the other; volatilizing uncured monomer. Another waveguide (116) fabrication method includes: fixing optical elements (110, 112) relative to each other, each having an optical surface (11, 13); providing a copolymer blob (114) over the optical surfaces with sufficient surface tension to result in the copolymer blob having a curved surface (15); sending light through each of the optical elements towards the curved surface and the other; volatilizing uncured monomer. An optical path fabrication method comprises: fixing optical elements (70, 76) relative to each other, each having an optical surface (71, 77); translating and rotating a minor (78) until aligned to optimally direct light from one of the optical elements to the other; securing the aligned minor in position.
Abstract:
Disclosed is an optical device structure comprising a low shrinkage mixture wherein the shrinkage of the mixture is limited after the curing of the mixture during optical device formation. Disclosed also are methods for forming optical devices which comprise the low shrinkage mixture.
Abstract:
A method and system for increasing the coupling efficiency of optical interconnections between optical elements such as optical fibers, waveguides, and vertical cavity surface emitting lasers (VCSEL) in single mode or multimode.
Abstract:
PROBLEM TO BE SOLVED: To provide a production method of practically transparent polymer substrate of X-ray grid for scattering prevention for using in radiation photographing technique for medical diagnosis. SOLUTION: The production method includes a process arranging a phase mask 320 in between a substrate 114 and a high power laser 310, a process radiating laser beam from a laser generator 310, a process adjusting the state of laser beam, a process removing the first part of the substrate 114 by the abrasion using state-controlled laser beam through the phase mask 320 and a process removing the second part of the substrate 114 by the abrasion using state-controlled laser beam through a phase mask 320.
Abstract:
Un ensamblaje de cable sensor de fluido y un método utilizan cuerpos de conducción que se extienden a lo largo de un cuerpo central alargado para conducir una corriente de calentamiento para calentar el ensamblaje de cable. Los cuerpos de conducción también están configurados para conducir una señal de interrogación y para conducir reflexiones de la señal de interrogación, fibras ópticas se extienden a lo largo de la longitud del cuerpo central e incluyen elementos sensibles a la temperatura en localizaciones diferentes a lo largo de la longitud del cuerpo central. Los elementos sensibles a la temperatura miden flujo térmico fuera del ensamblaje de cable en las localizaciones diferentes después del calentamiento el ensamblaje de cable y comunican el flujo térmico a un sistema de adquisición por computador.
Abstract:
Disclosed is a fibre-optic current sensing system (10) with temperature compensation. The system (10) includes a fibre-optic current transducer (16) configured to sense a current flowing through an electrical conductor, a temperature sensor (12) and signal-processing electronics (28). The temperature sensor (12) includes a direct-band edge semiconductor material and is configured to measure the operational temperature of the fibre-optic current transducer (16). The signal-processing electronics (28) are configured to adjust the sensed current measurement to substantially compensate for temperature-induced errors associated with the sensed current measurement in response to the measured operational temperature of the fibre-optic current transducer (16).
Abstract:
A method and system for increasing the coupling efficiency of optical interconnections between optical elements such as optical fibers, waveguides, and vertical cavity surface emitting lasers (VCSEL) in single mode or multimode.
Abstract:
A carbon dioxide (CO2) purity sensor package includes a fiber core, a periodic refractive index modulated fiber grating structure within the fiber core and a fiber cladding. A thermally conductive sensing layer is positioned about a portion of the fiber cladding surrounding the periodic refractive index modulated fiber grating structure. A gas chamber encloses the fiber cladding with the thermally conductive sensing layer.
Abstract:
Ein Glasfaserstromerfassungssystem verwendet mindestens eine Lichtquelle, die arbeitet, dass sie Licht mit einer oder mehreren Soll-Wellenlängen erzeugt. Ein erster glasfaserbasierter Sensor, der für eine Soll-Wellenlänge transparent ist, arbeitet, um ein Magnetfeld zu erfassen, das von einem vorbestimmten elektrischen Leiter oder einem durch den elektrischen Leiter fließenden Strom emittiert wird. Ein Temperatursensor, der ein anderer glasfaserbasierter Sensor sein kann, arbeitet, um eine Betriebstemperatur zu erfassen, die mit dem ersten glasfaserbasierten Sensor als Antwort auf das von der Lichtquelle erzeugte Licht zusammenhängt. Eine Signalverarbeitungseinrichtung stellt den gemessenen Strom ein, um im Wesentlichen temperaturinduzierte Fehler im Zusammenhang mit dem gemessenen Strom als Antwort auf die gemessene Betriebstemperatur des Glasfasersensors zu kompensieren.