In order to study the influence of the standing wave levitation stability with adding a resonant tube to ultrasonic standing wave levitation device,two ultrasonic standing wave devices model are designed.The combinations of the transmitter and the reflector in these two devices are concave concave and concave flat,respectively.And the two kinds of standing wave levitation way of the resonant tube and the non introduced tube are simulated and experimentally studied.The distributions of relative time average potential and relative acoustic levitation force in the two suspension ways are obtained by ANSYS and MATLAB co simulation,and the results show that the standing wave levitation stability can be improved by the introduction of the resonance tube whose radius is 1.023λ.Finally,the tests of liquid drops are made in the case of resonant tube and non resonant tube by setting up the experiment system,and the result show that the time of the levitation stability of resonant tube is longer than that of the non resonance tube when the liquid drop is suspended.Thus,the conclusion can be verified that introducing the resonant tube can effectively enhance the standing wave levitation stability in the ultrasonic standing wave levitation device in accordance with simulation result.
