Wall e.g. combustion chamber finned pipe wall, thicknesses measurement method for e.g. evaporator pipe, involves allowing coupling of ultrasound at combustion chamber wall that allows tangential inducing and diverting of ultrasound

摘要

The method involves inducing and diverting ultrasound tangential to a pipe e.g. evaporator pipe, via coupling points. Running time of an ultrasound wave is measured. Wall e.g. combustion chamber finned pipe wall, thickness emaciations are calculated from changes of the running time based on a temperature of the pipe, an internal pressure and different loads. Coupling of the ultrasound is allowed at a combustion chamber wall via welding parts. The wall allows a tangential inducing and diverting of the ultrasound into and from a wall of the pipe. An independent claim is also included for a device for measurement of wall thicknesses using ultrasound.