Surface-finish and profile measurements of machine components are frequently made in situ using replication techniques, thereby minimising the machine down time.

The resolution, accuracy, stability and versatility of Microset replicas makes them particularly suitable for such applications. Microset replicas retain their shape and dimensions as cast, despite being inherently flexible when deliberately stretched. These properties allow rough re–entrant surfaces to be replicated and accurately measured whereas conventional hard setting replication compounds become trapped in the surface features.

Pit Depth Measurement by Non-Contact Laser Metrology
Pitting and foreign object damage on gas turbine engine blades can be replicated and measured using Microset polymers. Laser profiling devices which build up a picture of a surface by combining hundreds of line scans are employed for this purpose

	Laser profile scan of a Microset 101RF replica of a pit in a gas turbine blade. (Uniscan OSP100A Instrument. 300 line scans were made over an area of 4mm x 3mm).
	The line scan recording the maximum pit depth in the above scan, reproduced graphically and showing a pit depth of 76 microns.