The success or failure of a nondestructive test
often hinges on the precision with which the transducers or probes are held
in relation to the test piece. This is particularly true in ultrasonic and
eddy current testing. Poor probe positioning often results in invalid test
results or no test at all. Good fixturing holds probes in the right position
and allows for fine adjustment of the probes once they are in place.
Pictured below are two examples of the many fixtures we have built, one
for eddy current and one for ultrasonics (bottom).