Acoustic monitoring

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Abstract

The possibilities of monitoring the printhead operation without an additional measuring setup is discussed in this section. With piezo inkjet, the actuator can also be used as a sensor during normal printhead operation. The acoustic signal detects variations in the drop formation process, the refill of the nozzle, wetting of the nozzle plate surface, disturbances from dirt particles, and the presence of air bubbles. Self-sensing enables also the active control of the driving waveform.
Original languageEnglish
Title of host publicationInkjet-based micromanufacturing
EditorsJ.G. Korvink, P.J. Smith, D.-Y. Shin, O. Brand, G.K. Fedder, Chr. Hierold, O. Tabata
Place of PublicationChichester
PublisherWiley-VCH Verlag
Pages15-28
ISBN (Print)978-3527319046
Publication statusPublished - 2012
Externally publishedYes

Publication series

NameAdvanced Micro and Nano Systems
Volume9

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