Fiber optic position transducer with magnetostrictive material and position calibration process

Fiber optic position transducer that includes a magnetic or electromagnetic element, one or more segments of magnetostrictive material, Fiber Bragg Grating Sensors, a rod of material that is impenetrable to magnetic fields, optical fiber. One or more of the sensors is fixed upon a segment of magneto...

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Hauptverfasser:	GUEDES VALENTE LUIS CARLOS, FREITAS RICARDO MUNOZ, BARBOSA BRAGA ARTHUR MARTINS, ARIAS VIDAL JOSE LUIZ, CARVALHO HELIO RICARDO, OLIVEIRA BRUNO ANTONIO CARLOS
Format:	Patent
Sprache:	eng
Schlagworte:	OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS
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creator	GUEDES VALENTE LUIS CARLOS FREITAS RICARDO MUNOZ BARBOSA BRAGA ARTHUR MARTINS ARIAS VIDAL JOSE LUIZ CARVALHO HELIO RICARDO OLIVEIRA BRUNO ANTONIO CARLOS
description	Fiber optic position transducer that includes a magnetic or electromagnetic element, one or more segments of magnetostrictive material, Fiber Bragg Grating Sensors, a rod of material that is impenetrable to magnetic fields, optical fiber. One or more of the sensors is fixed upon a segment of magnetostrictive material, which is fixed to a rod, and may only be displaced longitudinally. The Fiber Bragg Grating Sensors have different wave lengths and are made of the same optical fiber. The magnetic or electromagnetic element included may be made of NdFeB (Neodymium Iron Boron) or metal alloys of TbDyFe (Terbium, Dysprosium and Iron), such as TX, Terphenol-D and others. It is applied to a control flow valve in an oil well, and it also refers to the calibration process of the position of the transducer.
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title	Fiber optic position transducer with magnetostrictive material and position calibration process
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