A survey on ultrasound techniques, optical techniques, thermography, microw
ave and x-ray techniques and one-side access nuclear magnetic resonance is
given with respect to applications on non destructive testing of elastomers
. The applications are detection of coating delamination, imaging of the in
ternal microstructure of complicated shaped objects and characterisation of
ageing, hardness and moisture content of materials. One-side access nuclea
r magnetic resonance allows a detection depth of up to 30 mm on large test
objects.