Development of Inkjet Nozzle Driven by Double Piezo Actuators
نویسندگان
چکیده
An inkjet nozzle with double piezo transducers has been designed, which is different from conventional inkjet nozzles. The body of the nozzle which is fabricated by precision machining techniques is made from transparent acrylic material to visualize the flow inside the nozzle. The piezoelectric actuators are activated by a voltage amplifier which generates high-voltage bipolar waveforms. The key idea of the present nozzle is a successive actuation of multiple piezoelectric actuators, which makes the ejection and suction of liquid more controllable than the single piezoelectric actuator. The present study presented the effect of the pulse widths and the time delay between the double piezo transducers on the formation and speed of droplet during the ejection.
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