| 摘要 |
Three or more (preferably an even number) of hollow vibration bars are joined together at one end thereof with the bars spaced from each other and with their longitudinal axes in substantially parallel relationship. Each of the bars has an unbalanced rotor mounted therein which when rotatably driven will generate vibrational energy in the associated bar. The similar rotors of the bars are phased with relationship to each other to generate a combined vibrational force pattern in a liquid in which the bars are immersed which affords optimum agitation of the liquid in an omnidirectional manner. The vibration at the juncture between the multiple bars is kept at a minimum by virtue of the cancellation of the force vectors generated by the bar members at this point. |
