METHOD AND SYSTEM FOR MONITORING WALL THICKNESS OF PIPELINES, PRESSURE VESSELS ETC. AND A SENSOR TO BE USED FOR THE SAME PURPOSE

摘要

SUMMARY A method for monitoring the wall thickness of a pipeline (13) which is carried out via an electric circuit through several sensors (10) which have been mounted inside the pipewall (12). The sensors (10) have a sensor element (17) which checks the remaining wall thickness within the sensor element (17). A monitoring system which includes an electric circuit and several sensors (10) mounted inside the wall of the object. Each sensor has a sensor element (17) made of magnesium metal and is remotely monitored via an electric circuit. A sensor (10) which consists of a cylindrical, pluglike mechanical device which is inserted, and which includes a sensor element (17) of conductive, easily corrosive material such as magnesium metal, and an electrically insulated holder (18).