Legacy measurement techniques for multilayer products cannot measure materials that are not transparent. Due to its long wavelength, a terahertz pulse can easily penetrate opaque materials, while being a totally safe alternative to nuclear gauges.
Single-sided scanning of smooth or textured TPO can provide multilayer thickness measurements to allow tight process control.
In a rubber product, like EPDM, the T-Gauge Sensor can measure the thickness of both white and black layers with a single scanner.
The T-Gauge can easily integrate with any Quality Control System, and even detect delamination of the multiple layers.