Thomas Monnier, Seydou Dia, Fan Zhang - Début 2013 - Measurement Science & Technology…

In the common practice of calibrating Acoustic Emission (AE) sensors, the extent and the actual behaviour of the active surface of the sensor are not considered. The so-called aperture effect, which makes contact transducers insensitive to waves of certain frequencies, is a consequence of the diffraction due to the size of the transducer surface combined with the wavelength of the incidentultrasonic wavefront.

Contact :
Fan Zhang
Tél. (Service Question Réponse) : 
03 44 67 36 82