High Frequency Recording with Electrostatically Deflected Ink Jets
作者： Richard G. Sweet
DOI: 10.1063/1.1719502
关键词:
摘要: A high speed oscillograph, using ordinary ink and paper, has been developed that provides a new approach to the old problem of producing instantly visible, high frequency records with inexpensive writing materials. A high speed jet of ordinary fountain‐pen ink is divided into a uniform procession of drops, each of which is independently charged in proportion to an input‐signal voltage. After projection through a constant transverse‐deflecting field, the charged drops are collected on a moving chart to form an instantly visible, permanent record …
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