The study on the formation of stable micro-liquid droplet—by the using of piezoelectric transducer
Date Issued
2006
Date
2006
Author(s)
CHEN, WEI-HAN
DOI
zh-TW
Abstract
This text aims at different size of piezo wafer to giving an structure design and performance test for piezoelectric droplet generator, and build up a set of device to observe , through change various parameters and gather the moment image by CCD camera to understand produce the droplet, put great emphasis on gauging the dynamic state process of produce the droplet ,then obtain stability shaping signal range and information (like diameter, velocity, broken time etc…) for shaping, wish to provide explicit and full data for micro-droplet producing phenomenon, and then to go a step further investigate and inquire to droplet producing .
Although in the past there was many research of droplet producing, but the complete compare for shaping property under different parameters and accurate stable range was less. The control variable of this experiment are size of droplet generator, fluid properties, shapes and bore diameter of nozzle, operation frequency, and a windfall two-way signal input.
This experiment mainly inquires into three parts : one is the different size of droplet generator match up fluid properties influence of droplet shaping phenomenon, the other is nozzle have the same bore diameter but different outlet shape match up fluid properties influence of droplet shaping phenomenon, last is the shaping property analysis for piezo wafer change shape opposite by signal input opposite, then analyze the experiment data.
Subjects
壓電
液滴產生器
微液滴
衛星液滴
piezoelectric
droplet generator
micro-droplet
Satellite drop
Type
thesis
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