METHOD AND DEVICE FOR TELETRANSMISSION OF SIGNALS AND APPLICATION TO DETECTION AND / OR MEASUREMENT OF THE FUEL GAS CONTENT OF AN ATMOSPHERE

摘要

THE METHOD OF TELETRANSMISSION OF SIGNALS DELIVERED BY AT LEAST ONE SENSOR SUPPLIED IN ENERGY AND CONNECTED TO A TELETRANSMISSION LINE CONSISTING THAT THE ENERGY NECESSARY TO SUPPLY THE SAME SENSOR IS TRANSMITTED BY THE LINE IN THE FORM OF SUBSTANTIALLY INTENSIVE ALTERNATING CURRENT CONSTANT, SAID LINE FULFILLING THE TRIPLE FUNCTION OF ENERGY SUPPLY AUDIT SENSOR, TRANSMISSION OF INTERROGATION SIGNALS AUDIT SENSOR AND TRANSMISSION OF INFORMATION SIGNALS FROM SUCH SENSOR. /P P THE DEVICE ESSENTIALLY AT LEAST AT LEAST A TWO-WIRE TRANSMISSION LINE SUPPLIED BY ALTERNATING CURRENT AND COMPRISING A TRANSFORMER AT EACH OF ITS ENDS. IT FURTHER INCLUDES AT LEAST ONE ENERGY SUPPLIED SENSOR BY EACH TRANSMISSION LINE AS WELL AS A CENTRAL CONTROL AND PROCESSING UNIT, AT LEAST ONE MODULATOR-DEMODULATOR CONNECTED ON THE ONE HAND TO THE CENTRAL UNIT AND ON THE OTHER HAND TO THE TRANSFORMER LOCATED AT AN END OF EACH TRANSMISSION LINE AND AT LEAST ONE MODULATOR-DEMODULATOR CONNECTED TO THE TRANSFORMER LOCATED TO THE OTHER END OF EACH TRANSMISSION LINE, EACH SENSOR BEING CONNECTED TO EACH MODULATOR-DEMODULATOR CONNECTED TO SAID OTHER LINE TRANSMISSION.