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Jet Fluctuations and Drop Velocity Jitter: Confirmation of a Causal Model

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In continuous inkjet devices, an applied perturbation, such as acoustic vibration or thermal modulation, is used to drive the Rayleigh-Plateau instability to cause regular breakup of liquid microjets into droplets of controlled size. Background fluctuations and other processes contribute to subtle variations in droplet velocity within the droplet stream. These velocity variations—droplet velocity jitter—can be observed by stroboscopy or by laser detection. The fluctuations in droplet position or period are influenced by the details of the jet breakup process, and measurement of the droplet fluctuations as a function of distance along the droplet stream provide estimates of the fundamental noise on the jet.
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Document Type: Research Article

Publication date: 2012-01-01

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  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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