| 摘要 |
An electrospray dispensing system for delivering a controllable quantity of charged micro-droplets of a conductive fluid, and which includes an elongate fluid supply cylinder having a first end, a second end, a sidewall (e.g., forming a circular or other polygonal cross-section) between the first and second ends, and an interior hollow that is in fluid communication with a source of conductive fluid. The dispensing system also includes an array of selectively-activated capillary tubes having proximal ends that are in fluid communication with the interior hollow and distal ends extending radially outward through the sidewall, and which are configured so that any conductive fluid flowing outwardly through one or more activated capillary tubes is electrically-charged. The dispensing system further includes a grounding electrode that is in electrical communication with a source of ground and located at a predetermined distance from the distal ends of the capillary tubes, so that an electric potential between the charged conductive fluid and the grounding electrode will cause each of the activated capillary tubes to form a cone jet which projects a stream of charged micro-droplets towards the grounding electrode.
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