ONLINE TUBE WALL THICKNESS MONITORING INSTRUMENT, SYSTEM AND METHOD

摘要

An online tube wall thickness monitoring instrument, system and method. The online tube wall thickness monitoring instrument comprises a terahertz generation apparatus and a terahertz receiving apparatus. The terahertz generation apparatus is used for producing terahertz detection waves and transmitting same to a tube wall (30) to be monitored, and the terahertz receiving apparatus is used for receiving the terahertz detection waves passing through the tube wall (30) to be monitored, so as to acquire the thickness of the tube wall (30) to be monitored according to an attenuation occurring to the terahertz detection waves after passing through the tube wall (30) to be monitored. During the detection of the thickness of the tube wall (30), the terahertz generation apparatus arranged therein emits the terahertz detection waves and enables same to be incident on the tube wall (30) to be monitored, and the terahertz detection waves attenuate when passing through the tube wall (30) to be monitored. The terahertz receiving apparatus detects a change in the terahertz detection waves, and thus can obtain the thickness of the tube wall (30) to be monitored. The online tube wall thickness monitoring instrument can realise the rapid and accurate detection of the thickness of a tube wall without the need to make contact with the tube wall.