Frequency coded, optical signature voltage sensor for alternating current mains

A, fibre frequency coded optical fibre voltage sensor for alternating current mains which is characterised in that, using a single mode optical fibre, the voltage applied generates an optical signal whose amplitude is frequency modulated. The frequency modulation encodes the amplitude and waveform of the applied voltage. The system consists of a continuous wave, coherent light source which supplies an optical fibre interferometer, a sensor element in the interferometer and a high power optical/voltage transducer photodiode. The optical system is an optical fibre interferometer, but is not a conventional interferometric (or phase) sensor and does not require any drift compensation, due to the design and method of operation employed.For application in the transmission and distribution of electricity. (Machine-translation by Google Translate, not legally binding) Sensor de voltaje de fibra óptica codificado en frecuencia, para redes de corriente alterna, que se caracteriza porque, utilizando fibra óptica monomodo, el voltaje aplicado genera una señal óptica cuya intensidad está modulada en frecuencia. La modulación en frecuencia codifica la amplitud y la forma de onda del voltaje aplicado. El sistema consta de una fuente de luz coherente de onda continua, que alimenta un interferómetro de fibra óptica, un elemento sensor dispuesto en el interferómetro y un fotodiodo transductor potencia óptica/voltaje. El circuito óptico es un interferómetro de fibra óptica, pero no constituye un sensor interferométrico (ni de fase) convencional, ni requiere compensación de deriva alguna, dados el diseño y forma de operación que se emplean. De aplicación en el transporte y distribución de electricidad. A, fibre frequency coded optical fibre voltage sensor for alternating current mains which is characterised in that, using a single mode optical fibre, the voltage applied generates an optical signal whose amplitude is frequency modulated. The frequency modulation encodes the amplitude and waveform of the applied voltage. The system consists of a continuous wave, coherent light source which supplies an optical fibre interferometer, a sensor element in the interferometer and a high power optical/voltage transducer photodiode. The optical system is an optical fibre interferometer, but is not a conventional interferometric (or phase) sensor and does not require any drift compensation, due to the design and method of operation employed.For application in the transmission and distrib