Ultrasonic Thickness Measurement is used to check thickness in pipes, tubes and other metallic items where reduction in thickness can lead to unwanted stopages.
For eg. In power plants, boiler tubes are regularly checked for reduction in thickness. If any tube is faulty i.e. has less thickness than what is desired then it may lead to rupture in tube and the complete system will become inefficient. Hence, it is mandatory to keep on checking the tubes for thickness to avoid unwanted and unnecessary breakdowns.