Autonomer Vibrationssensor für Hochspannungsleitungen

Winds and air circulations can be a potential hazard for high voltage lines. They cause the lines to move, resulting in mechanical stress at the suspension point and wear of the line itself. To estimate the stress, it is important to monitor the movements of the line. An acceleration based vibration sensor is a possible approach to measure the displacement spectrum of the line. Therefore the sensor has to work self-sufficiently on the overhead line. In this environment, design considerations are necessary with regard to a properly functioning sensor. In this paper, the most important design considerations are pointed out and a lab prototype of a vibration sensing system is set up and verified. It is characterized by means of its power consumption and the evaluation of its uncertainty and mean squared error regarding the displacement.