| 摘要 |
<p>A resonance vibratory system for materials handling and processing comprises a surface resiliently mounted for vibration, means to measure the vibratory displacement of the surface, means to provide a signal to a driving device to maintain the resonant vibratory motion of the surface, means to measure the time period per stroke, means to measure the power required to maintain the vibration, and a control circuit for the various said means, wherein the control circuit includes signal processing means whereby a signal representative of vibratory displacement is capable of being compared with a signal derived directly or indirectly from the measurement of displacement and/or time period per stroke and/or maximum acceleration and/or maximum velocity of the vibrating surface and/or weight and/or mobility and/or movement and/or throughput of material upon the vibrating surface and/or with an external signal to provide an adjustment to the displacement or an override instruction to the normal vibratory motion control to alter the displacement and/or waveform and/or frequency and/or direction of vibration and/or to provide an output signal to influence an external device. The system permits improved control of resonance vibration to be attained.</p> |
