A PZT-driven atomizer based on a vibrating flexible membrane and a micro-machined trumpet-shaped nozzle array

Yeau-Ren Jeng, Chien Chan Su, Guo Hua Feng, Yu Yin Peng, Ghin Pin Chien

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

This paper presents the design, and fabrication of a PZT-driven atomizer based on a flexible membrane and a micro-machined trumpet-shaped nozzle array. Tests were conducted to demonstrate that the developed atomizer can produce fine droplets. The atomizer uses a PZT bimorph plate attached to a liquid-proof HDPE membrane with a low Young's modulus to generate a pressure wave in the liquid reservoir. The trumpet-shaped micro-nozzle array is fabricated using a surface micromachining technique and an electroplating process. The fabrication process allows the use of a low resolution photomask to fabricate a high feature-sized trumpet-nozzle array. The SMD values of the ejected droplets and the flow rate of the fabricated atomizer are measured experimentally as a function of the operating frequency and the nozzle diameter for liquids of various viscosities. The relationship between the droplet size distribution and the SMD value is also explored. The experimental results show that the atomizer is capable of generating droplets with an SMD of 4.6 μ at a flow rate of 2.5 g/min. Hence, the atomizer has the potential for use in many applications.

Original languageEnglish
Pages (from-to)865-873
Number of pages9
JournalMicrosystem Technologies
Volume15
Issue number6
DOIs
Publication statusPublished - 2009 Jun 1

Fingerprint

atomizers
Atomizers
nozzles
Nozzles
membranes
Membranes
Surface mount technology
Liquids
liquids
flow velocity
Flow rate
Surface micromachining
Fabrication
Photomasks
fabrication
photomasks
electroplating
Polyethylene
Electroplating
High density polyethylenes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

Jeng, Yeau-Ren ; Su, Chien Chan ; Feng, Guo Hua ; Peng, Yu Yin ; Chien, Ghin Pin. / A PZT-driven atomizer based on a vibrating flexible membrane and a micro-machined trumpet-shaped nozzle array. In: Microsystem Technologies. 2009 ; Vol. 15, No. 6. pp. 865-873.
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A PZT-driven atomizer based on a vibrating flexible membrane and a micro-machined trumpet-shaped nozzle array. / Jeng, Yeau-Ren; Su, Chien Chan; Feng, Guo Hua; Peng, Yu Yin; Chien, Ghin Pin.

In: Microsystem Technologies, Vol. 15, No. 6, 01.06.2009, p. 865-873.

Research output: Contribution to journalArticle

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