PZT bimorph actuated atomizer based on higher order harmonic resonance and reduced operating pressure

Yeau-Ren Jeng, Ping Yung Tu, Guo Hua Feng, Chien Chan Su, Yu Yin Peng

研究成果: Article

7 引文 斯高帕斯(Scopus)

摘要

This paper presents the design, fabrication and testing of a PZT bimorph actuated atomizer. The atomizer with the size of 43 mm × 37 mm × 7 mm is composed of a PZT bimorph actuator, which is sandwiched by top and bottom flow channel plates and cover shields. The micronozzle plate is attached onto the top cover shield. UV laser machining and micro electrical discharge machining (μEDM) are applied to fabricate the micronozzles with different geometry. The experimental results indicate that we can justify the frequency response of flow rate by acoustic pressure analysis. The peak flow rates occur at higher order resonances, and the operating pressure is less than 0.1 MPa, which is much lower than that of existing atomizers. Also, the influence of flow rate by changing the distance between the PZT bimorph and the nozzle plate, as well as the flat plate on the bottom cover shield are discussed. The maximum flow rate of 8 ml/min is obtained by using the μEDM-made micronozzle plate, when the atomizer is driven with square pulses at 7 kHz with 50% duty cycle and 27 V peak-to-peak.

原文English
頁(從 - 到)434-440
頁數7
期刊Sensors and Actuators, A: Physical
136
發行號1
DOIs
出版狀態Published - 2007 五月 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering

指紋 深入研究「PZT bimorph actuated atomizer based on higher order harmonic resonance and reduced operating pressure」主題。共同形成了獨特的指紋。

引用此