mine ore griding by ultrasound waves
Optical detection of evanescent ultrasound waves in water - IEEE .Optical detection of evanescent ultrasound waves in water. Abstract: Acoustical perturbation by targets smaller than the wavelength can generate evanescent waves, which decay with the distance of propagation. . Sign In or Purchase. to View.mine ore griding by ultrasound waves,Ultrasonic Waves in Mining ApplicationMar 7, 2012 . constants of an isotropic rock or one exhibiting slight anisotropy. . There are two main mining applications of ultrasonic waves: one is .. large voids when a grid of pulse velocity measurements is made over a region in which.What is ultrasound? - Definition from WhatIs - SearchSecurityUltrasound is acoustic energy in the form of waves having a frequency above the . is detected by sensitive electronic circuits, which send signals to an alarm or.