RSIME has the capability to provide four major types of non-destructive testing. 

Ultrasonic Testing This non-destructive technique is useful for finding cracks or defects that are subsurface and cannot be easily detected by other methods such as magnetic particle inspection.  Ultrasonic testing works by introducing ultrasonic waves that bounce off of cracks and defects.  A sensor then detects these returning waves and calculates depth.

Magnetic Particle Inspection With magnetic particle inspection, surface cracks can easily be detected.  It works by applying magnetic particles to the sample then sending a magnetic flux through the sample.  This draws the magnetic particles to the open cracks because the magnetic flux escapes at these locations.

Dye Penitrant Magnetic particle inspection can only work with magnetic ferrous materials (i.e. most steels); however it will not work with non-magnetic materials, such as aluminum or plastic.  Dye penitrant can be used with these non-magnetic materials to find surface cracks.  It works by applying a dye to the surface of a sample which seeps into the crack.  The excess dye is wiped off and a developing spray is added to brighten the cracked area.

Replica Techniques Often an aspect of a part such as a fracture surface or surface damage cannot be easily cut and removed for further analysis.  Replica Techniques uses a special, two-part mixture that can be spread over a surface.  Once set, it replicates the surface.  This allows for the molded replica to be inspected, not the actual component.