Using Ultrasonic Gauges to Measure Thickness
Ultrasonic thickness gauging is a widely used nondestructive test technique for measuring the thickness of a material from one side. It's fast, reliable, and versatile, and unlike a micrometer or a caliper it requires access to only one side of the test piece.
How to Talk to Your Kids About... Quality Engineering
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Nothing tops the feeling of knowing you may have brought an engineer into this world.
I really can’t make this stuff up.