The invention discloses sand grain
diameter detection device and method based on a fluid /
solid interface wave.
Ultrasonic detection is applied to the detection of
river sand grain
diameter, Scholte wave energy is mainly focused in a fluid near a fluid /
solid interface, and has the characteristics of largest amplitude, small
frequency dispersion and high detection precision, the detection device is characterized in that a singlechip
intelligent control module generates a pulse
signal, an
excitation signal generating module transmits the pulse
signal in multiple paths of Scholte
waves, a receiving module receives the corresponding Scholte
waves, the
signal is transmitted to the singlechip
intelligent control module for performing calculation to obtain a
relation graph between a number of the Scholte
waves and the grain
diameter, and a defect in existing grain diameter detection is well made up; the detection device has the advantages of small size, convenience in use, wide detection range to the grain diameter and high reliability, is easy to carry, is suitable for detection of the field
river sand grain diameter detection, and is beneficial to the actual popularization and use.