| 摘要 |
PURPOSE:To eliminate a junction part as well as an air flow and reduce generation of dust or its blowing by a method wherein a transportation is performed with a stationary supersonic wave. CONSTITUTION:There are arranged supersonic wave generators 1 to 6 and supersonic wave reflector 7, and they are arranged such that their supersonic wave reflecting surfaces are oppositely faced to each other with some clearances required for generating the stationary wave. When supersonic waves having equal frequency, phase and amplitude are generated by all the supersonic wave generators, a stationary wave is generated between the supersonic wave generating surface and the supersonic wave reflecting surface, resulting in that the transported object 8 is floated at the position of node of the stationary wave. Under this condition, if the amplitude of the supersonic wave generator 4 is made small, the floating force just over the supersonic wave generator 4 in respect to the transported object is reduced and the transported object is started to slide toward the supersonic wave generator 4. In this way, the transportation of object with application of the stationary supersonic wave enables the generation of dust or its blowing to be reduced. |
