Abstract
Online paint film thickness measuring is important in the production of continuous coating line. A method of film thickness measuring using pulsed eddy current (PEC) and ultrasonic sensors without contacting the film itself is proposed. PEC is a new nondestructive testing (NDT) technique which using a broadband pulse excitation with rich frequency information and has wide application potentials. An ultrasonic sensor and a PEC sensor were placed in adjacent position. Where the ultrasonic sensor measures the distance between the device and the upper surface of the paint film and the PEC sensor measures the distance between the device and the upper surface of the substrate. Compared the two distances the film thickness value was produced. The device is capable of accurately measuring thickness of various paint films, such as flat, glossy and metal-flake containing paint films. The method may be applied to continuous coating line. Laboratory experiments proposed the accurate and efficient.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
