Advanced Ultrasonic Coating Thickness Gage with B Probe, 13-1000μm
The DeFelsko PosiTector 200 B3 is a hand-held coating thickness gage that uses a non-destructive ultrasonic principle to measure coating thickness on a wide variety of substrates. It consists of an advanced PosiTector gage body and a B-type probe that is capable to measure 13 - 1000 μm (0.5-40 mils) ideal for Polymer coatings on wood, plastic, etc.
PosiTector 200 probes emit a high-frequency sound pulse that travels into the coating via a couplant and reflects from any surface that is different in density. Coating thickness readings are obtained by measuring the time taken for the ultrasonic signal to propagate from the probe to the coating/substrate interface and back. The travel time is divided by two and multiplied by the velocity of sound for the coating to obtain the thickness of the coating.