pipe structure monitoring system using piezoelectric sensors based on impedance and guided wave

摘要

The present invention relates to a piping system monitoring system that can measure the damage of the piping structure in real time, in particular, by measuring the impedance change of the piping structure using a piezoelectric sensor attached to the piping structure, two attached to the piping structure After measuring the change in the induced ultrasonic response signal of the pipe structure using a piezoelectric sensor, it is easy to check whether the pipe structure is damaged in real time by comparing the impedance value range and the induced ultrasonic response signal value range in the steady state of the pipe structure. The present invention relates to a pipe structure monitoring system based on impedance and ultrasonic waves using piezoelectric sensors. The constituent means of the pipe structure monitoring system based on the impedance and the ultrasonic wave using the piezoelectric sensor of the present invention, the impedance value of the pipe structure by using a response signal outputted with a first piezoelectric sensor fixedly attached to the local portion of the pipe structure Impedance measuring device for measuring a, of the second and third piezoelectric sensors fixedly spaced apart from each other attached to the piping structure, the second piezoelectric sensor with an ultrasonic signal to the pipe structure, and the third piezoelectric sensor An induced ultrasonic wave measuring device for measuring the induced ultrasonic wave response signal of the pipe structure using the induced ultrasonic wave response signal sensed through the input, the impedance value and the induced ultrasonic wave response signal of the pipe structure from the impedance measuring device and the guided ultrasonic wave measuring device. To monitor the normal condition of the piping structure Characterized in that it comprises a ring device.