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19 November 2019 Fabrication and testing of the smallest “flute” on syringe needles
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Abstract
Nowadays, lasers, as innovation tools, provide extraordinary opportunities in a wide range of material processing and manufacturing applications. Here, we present using an ultra-short laser to fabricate a flute in a university’s lab on a syringe needle. By finely controlling the laser power and drilling time, holes can be drilled at one side but not penetrate the whole needle. With a set of holes arranged in a straight line, the needle acts as a “flute” when the gas flows into it. A microphone measures its acoustic frequency. Different tones were observed by changing the resonance length of the needle. Our work demonstrates the fabrication and testing of miniature flute on a syringe needle.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shenghan Gao, Zeqing Jin, Yiwen E., and X.-C. Zhang "Fabrication and testing of the smallest “flute” on syringe needles", Proc. SPIE 11183, Advanced Laser Processing and Manufacturing III, 111830A (19 November 2019); https://doi.org/10.1117/12.2538989
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