Analysis and Experiment on Characteristic of Piezoelectric Vibration Table for Precision Tray Seeding Device
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    Abstract:

    A piezoelectricity vibration table was designed for seeding precisely the small size of seeds of some vegetables, trees, flowers, etc. The piezoelectric vibration driving system produced the mechanical micro displacements with the applied electric field. The micro-displacements amplified by the amplification mechanism drove the seed dish vibrating and produced the boiling movement beneficial to suck seeds. The mathematical model of piezoelectric vibration was established. The static and dynamic state properties of the variation table were analyzed and experienced. The experimental results showed that the piezoelectric vibration system had a higher drive capacity with 90~110V electric voltage. Vibration amplitude achieved 131mm, vibration frequency was at 13~55Hz and adjustable (resonant frequency of 25Hz). The piezoelectric vibration table has better characteristics and higher seeding performances. It runs smoothly and meets the agronomic demands for precise tray seeding. 

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  • Online: July 24,2012
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