A 50mW CMOS wind sensor with ±4% speed and ±2° direction error

Jianfeng Wu, Youngcheol Chae, Caspar P.L. Van Vroonhoven, Kofi A.A. Makinwa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

19 Citations (Scopus)

Abstract

This paper describes a smart CMOS wind sensor that measures wind speed and direction without moving parts. It combines a 2-D thermal flow sensor and the required readout circuitry on a standard CMOS chip. The flow-dependent heat distribution in the chip is controlled and digitized by two thermal delta-sigma (TΔΣ) modulators. Both wind speed and direction can then be determined from their bitstream outputs. For wind speeds ranging from 1 to 25m/s, the sensor's error is less than ±4% (speed) and ±2° (direction), while consuming 9x less power than a previous design [1].

Original languageEnglish
Title of host publication2011 IEEE International Solid-State Circuits Conference - Digest of Technical Papers, ISSCC 2011
Pages106-107
Number of pages2
DOIs
Publication statusPublished - 2011
Event2011 IEEE International Solid-State Circuits Conference, ISSCC 2011 - San Francisco, CA, United States
Duration: 2011 Feb 202011 Feb 24

Publication series

NameDigest of Technical Papers - IEEE International Solid-State Circuits Conference
ISSN (Print)0193-6530

Other

Other2011 IEEE International Solid-State Circuits Conference, ISSCC 2011
CountryUnited States
CitySan Francisco, CA
Period11/2/2011/2/24

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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    Wu, J., Chae, Y., Van Vroonhoven, C. P. L., & Makinwa, K. A. A. (2011). A 50mW CMOS wind sensor with ±4% speed and ±2° direction error. In 2011 IEEE International Solid-State Circuits Conference - Digest of Technical Papers, ISSCC 2011 (pp. 106-107). [5746239] (Digest of Technical Papers - IEEE International Solid-State Circuits Conference). https://doi.org/10.1109/ISSCC.2011.5746239