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A monolithic integrated micromachined piezoresistive flow sensor

  • Dan Li
  • , T. Zhao
  • , L. Qian
  • , Z. C. Yang
  • , Dacheng Zhang*
  • *Corresponding author for this work
  • Peking University

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

Abstract

In this paper, a monolithic integrated piezoresistive flow sensor is presented, which was fabricated with an intermediate CMOS MEMS process compatible with pressure sensors. Four symmetrically arranged silicon diaphragms with piezoresistors on them are used to sense the drag force induced by the input gas flow. Signal conditioning CMOS circuit with temperature compensation was designed and tested, the resulting temperature coefficient is 6%FS/100°C. The integrated flow sensor was packaged and tested, and the resolution is less than 0.1L/min with range of 0.1-5L/min.

Original languageEnglish
Title of host publicationTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
Pages260-263
Number of pages4
DOIs
StatePublished - 2009
Externally publishedYes
EventTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems - Denver, CO, United States
Duration: 21 Jun 200925 Jun 2009

Publication series

NameTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems

Conference

ConferenceTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
Country/TerritoryUnited States
CityDenver, CO
Period21/06/0925/06/09

Keywords

  • Flow sensor
  • Intermediate CMOS MEMS
  • Monolithic integration
  • Piezoresistor

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