Measuring Quality of Materials
Durometers Shore A, Shore D, Shore C
Ultrasound or Ultrasonic
The ultrasonic pulse-echo technique is used to measure the thickness of coatings on nonmetal substrates (plastic, wood, concrete etc.) without damaging the coating. The probe of the instrument contains an ultrasonic transducer that sends a pulse through the coating. The pulse reflects back from the substrate to the transducer and is converted into a high frequency electrical signal. The echo waveform is digitized and analyzed to determine coating thickness. In some circumstances, individual layers in a multi-layer system can be measured.
Ultrasonic Hardness testers for testing quality off materials, Vickers, Brinell, Rockwell