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Analysis and experiment on the response characteristics of a pneumatic micro actuator based on TBC model

  • Xu Ling Liu*
  • , Song Jing Li
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Using basic physical arguments, we present a design and method for the fabrication of a pneumatic micro PDMS actuator using multilayer soft lithography based on dry-film photoresist. Its novel structure consists of a three-way electromagnetic microvalve for gas flow control which is connected with gas inlet microchannel for the actuator. Then the whole system is considered as a throttle blind capacitor (TBC) model and it is used to predict the response time of the pneumatic actuator by correlating its characteristics such as gas pressurizing, air resistance and membrane deformation. For this micro actuator, upward deformation motions of actuated area are observed of actuated area under 100KPa (N2) pressure and the fast open response (∼ 15 ms) was achieved at 50KPa pressure. Our method provides a simple, cheap and save-time pneumatic micro actuator which can be used in active functions, such as valves, pumps and mixers integrated on pneumatic microfluidic chips for downsizing the driving pressure and improving the whole efficiency of microchips.

Original languageEnglish
Title of host publicationManufacturing Technology, Electronics, Computer and Information Technology Applications
EditorsZhang Lin, Hongying Hu, Yajun Zhang, Jianguo Qiao, Jiamin Xu
PublisherTrans Tech Publications Ltd
Pages336-344
Number of pages9
ISBN (Electronic)9783038353287
DOIs
StatePublished - 2014
Event2014 International Conference on Manufacturing Technology and Electronics Applications, ICMTEA 2014 - Taiyuan, China
Duration: 8 Nov 20149 Nov 2014

Publication series

NameApplied Mechanics and Materials
Volume687-691
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2014 International Conference on Manufacturing Technology and Electronics Applications, ICMTEA 2014
Country/TerritoryChina
CityTaiyuan
Period8/11/149/11/14

Keywords

  • Dry-film photoresist
  • PDMS membrane
  • Pneumatic micro actuator
  • Response time
  • TBC model

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