一种压电式微尺度单液滴喷射系统及方法

By using a water/ethanol mixture and irradiating the neck with a high-energy laser, the problems of high difficulty and low speed in existing piezoelectric-driven microscale single droplet jetting were solved, and high-speed jetting of single droplets was achieved.

CN117619635BActive Publication Date: 2026-07-17NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHWESTERN POLYTECHNICAL UNIV
Filing Date
2023-11-14
Publication Date
2026-07-17

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Abstract

本发明公开了一种压电式微尺度单液滴喷射系统及方法，属于微液滴喷射领域。系统包括水 / 乙醇混合溶液、喷头、压电陶瓷片、驱动控制器、延时控制器、高能量激光器1和高能量激光器2；所述的水 / 乙醇混合溶液充满喷头内部；所述压电陶瓷片固定于喷头上端，受驱动控制器控制，当驱动控制器向压电陶瓷片输出驱动信号，压电陶瓷片发生机械变形，将水 / 乙醇混合溶液从喷头挤出；所述的延时控制器与驱动控制器连接，当驱动控制器向压电陶瓷片发出驱动信号的同时触发延时控制器，延时控制器控制高能量激光器1延时开启；所述的高能量激光器1和2位于喷头下方，且发出的激光束与混合相液滴喷射路径垂直相交。基于本发明喷射单个微尺度液滴时，需要消耗的动能减少，喷射难度降低。液滴能够保持较高速度喷射。
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