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Published December 1994 | Published
Book Section - Chapter Open

Theoretical and experimental studies of micromachined hot-wire anemometers


A new type of micromachined and batch-fabricated hot-wire anemometers has been developed. The systematic characterization of these devices, especially of the steady-state characteristics, frequency response, and directional dependence are presented. These micromachined anemometers can perform better than conventional ones because of their extremely small size. It is demonstrated that a 10 µm long, 1 µm wide, and 0.5 µm thick polysilicon hot wire can have a unprecedented bandwidth of 1.4 MHz in constant-temperature mode.

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© 1994 IEEE. This project is supported by AFOSR under grant F49620-92-J-0424. The authors would like to thank Trevor Roper for his help in processing.

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August 20, 2023
August 20, 2023