Optical Gyroscopes
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. New technique for the implementation of digital demodulation of fiber optic gyroscopes / Implementação de uma nova tecnica para demodulação digital de sinal de giroscopio a fibra optica
Gyroscopes are devices used to measure angular orientation, being extensively employed for guidance, navigation and stabilization. Among the many types of gyroscopes, IFOG (Interferometer Fiber Optic Gyroscope), based on Sagnac effect, is the most interesting solution due to its high sensitivity, resolution, reliability, small size and EMI immunity. The pres
Publicado em: 2009
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2. Study and compensation of bias drift, scale factor stability and linearity of a conditioning and sign processing circuit of an interferometric fiber optic gyroscope / Estudo e compensação da deriva termica, estabilidade do fator de escala e lineariazação de um circuito de condicionamento e processamento de sinais de girometro interferometrico a fibra optica
Fiber Optic gyroscopes are an important part of inertial navigation systems. To meet the necessary specifications required for application in inertial systems, it is mandatory that the electronic Sagnac demodulator uses state of the art devices. The proposal of this work is to study and develop a technique to correct all together for the nonlinearities, the
Publicado em: 2009
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3. Nova tecnica de processamento de sinais no dominio do tempo de giroscopios interferometricos de Sagnac a fibra optica
This work focuses on the study of a new time domain signal processing technique of Sagnac interferometric fiber optic gyroscopes. The technique consists in demodulating the output signal of the interferometer to obtain the rotation rate W and to monitor both the optical phase modulation depth m f and the incident power level 0 P , by measuring the dc value a
Publicado em: 2001