Abstract Submission

Abstract of papers and posters not exceeding 300 words must be received in Seminar AdministratorsOffice by 31 October, 2010.

Please send your abstract by email to:   info@iwms20.se

A confirmation email will be sent to acknowledge receipt of the abstract. If no confirmation is received after one week, then write again to ask further instructions. 

Abstracts will be peer-reviewed and a response will be sent by email before December 31, 2010.    

(Abstract example)    

ABSTRACT

Electronic Speckle Pattern Interferometry (ESPI) is used to measure the vibration mode shapes of circular and band saws. A video camera views a vibrating saw blade that is illuminated by a laser light. The image within the camera is mixed with a reference light to create an interference pattern. The reference phase is stepped by 180 degrees using a piezo-electric actuator before measuring each successive image. Subtraction of the successive images gives a contour view of the vibration mode of the saw blade. The technique is non-contacting and displays vibration mode shapes in real-time. It has the advantage over the classical Chladni method because it avoids the need to spread a powder over the saw blade surface and because it can also identify low-frequency vibrations.