초록 ▼

Electrokinetic transducing methods and systems are disclosed in which the two electrode arrays confront each other and each electrode in one array is equidistant from the two nearest electrodes in the other array. The electrode arrays are excited by pulsed exciting voltages, the individual pulses of

Electrokinetic transducing methods and systems are disclosed in which the two electrode arrays confront each other and each electrode in one array is equidistant from the two nearest electrodes in the other array. The electrode arrays are excited by pulsed exciting voltages, the individual pulses of which are preferably all negative or all positive, have durations equal to or less than the pulse intervals, and have rounded leading knees. Embodiments of the invention are disclosed for applications including electrokinetic loudspeakers, ion generators, fans, and electrostatic precipitators.

대표청구항 ▼

An apparatus for moving air comprising: a first array of electrodes; a second array of electrdes, the electrodes of said second array having a cross-sectional area larger than the cross-sectional area of the electrodes in said first array; the distance between any two adjacent electrodes in said fir

An apparatus for moving air comprising: a first array of electrodes; a second array of electrdes, the electrodes of said second array having a cross-sectional area larger than the cross-sectional area of the electrodes in said first array; the distance between any two adjacent electrodes in said first array being substantially equal to the distance between any two adjacent electrodes in said second array. said electrode arrays confronting each other across a space containing air such that any electrode in said first array is substantially equidistant from the closest two electrodes in the second array; and generating means coupled between said first array and said second array, for generating a signal comprising voltage pulses of a single polarity, said generating means including means for biasing said signal so that the absolute value of the voltage of said signal stays above a predetermined minimum value.