UT IIW Type I Block Caution and Comments

This video explains some of the features of the IIW Type I reference block. The 4" and 9" reflectors that are used to calibrate are explained. There is also a caution about a mode converted signal that may cause an error when calibrating with some transducers and wedges. Equipment: Olympus EPOCH 1000i UT tester, IIW Type I Reference Block, GE 5MHZ, 0.25" diameter transducer with a 45 degree screw on wedge. I work at Central Piedmont Community College in Charlotte, NC. Please visit our website to explore your NDE training needs. Central Piedmont Community College NonDestructive Examination Technology Program https://www.cpcc.edu/programs/nondest... Central Piedmont Community College NonDestructive Examination Technology Program College Catalog http://catalog.cpcc.edu/programsofstu...