Thickness Gages & Ultrasonic NDT Testing

Thickness gages are measuring instruments that can be used to determine the thickness or gage of a material. Primary thickness types measured are material thickness, coating thickness and wire & sheet metal thickness. There are actually several different types of thickness gages, each that function in a slightly different manner depending on the intended application for the gage. Dial and digital thickness gages are mechanical thickness gages and can measures material thickness, wire and sheet metal. Ultrasonic thickness gages measure the thickness of a part by measuring the time sound travels from the transducer through the material to the back end of a part, and then measures the time of reflection back to the transducer. The gage then calculates the thickness based on the velocity of sound through the material being tested. The use of Ultrasonic non-destructive testing (NDT) is now extensively used in all facets of industry.
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