Optically-Powered Transducer with Optical-Fiber Data Link
نویسندگان
چکیده
منابع مشابه
Optically Powered Fiber Optic Sensors
Optically Powered Fiber Optic Sensors (OPFOS) combine the advantages of fiber optic and microelectronic technologies [1-12]. Fiber optic and partially Fiber Optic Sensors (FOS) offer advantages that are significant in the field of variety of industrial, military and medical applications. FOS are immune to electromagnetic interference (EMI), they have low thermal and mechanical inertia, and they...
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We report the experimental results on a new infrared fiber-optic pyrometer for very localized and high-speed temperature measurements ranging from 170 to 530 °C using low-noise photodetectors and high-gain transimpedance amplifiers with a single gain mode in the whole temperature range. We also report a shutter based on an optical fiber switch which is optically powered to provide a reference s...
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VALKYRIE (Very-deep Autonomous Laser-powered Kilowatt-class Yo-yoing Robotic Ice Explorer) is a NASA-funded project to develop key technologies for an autonomous ice penetrator, or cryobot, capable of delivering science payloads through outer planet ice caps and terrestrial glaciers. This 4 year effort will produce a cylindrical cryobot prototype 280 cm in length and 25 cm in diameter. One nove...
متن کاملAn Optical Fiber Sensor Probe Using a PMMA/CPR Coated Bent Optical Fiber as a Transducer for Monitoring Trace Ammonia
Ammonia sensors have broad spectrum of applications for industrial process control as well as for environmental monitoring. An optical fiber ammonia sensor probe has been developed by using a bent optical fiber having dual poly(methyl methacrylate) (PMMA)/chlorophenol red (CPR) coatings as a transducer. This sensor probe was tested for monitoring trace ammonia in gas samples using air as sample...
متن کاملOptical delay interferometer based on phase shifted fiber Bragg grating with optically controllable phase shifter.
We propose a novel optical delay interferometer (ODI) with an optically controllable phase shifter. The proposed interferometer is implemented by using a phase shifted fiber Bragg grating and an Yb(3+)/Al(3+) co-doped optical fiber. The phase of the delayed optical signal is linearly controlled by adjusting the induced pumping power of a laser diode at 976 nm. Polarization dependent loss, polar...
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ژورنال
عنوان ژورنال: Transactions of the Society of Instrument and Control Engineers
سال: 1987
ISSN: 0453-4654
DOI: 10.9746/sicetr1965.23.570