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Hot-wire anemometer for spirography


The use of a constant temperature hot-wire anemometer flow sensor for spirography is reported. The construction, operating principles and calibration procedure of the apparatus are described, and temperature compensation method is discussed. Frequency response is studied. It is shown that this hot-wire flow transducer satisfies common demands with respect to accuracy, response time and temperature variations.

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Correspondence to P. -H. Kingisepp.

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Plakk, P., Liik, P. & Kingisepp, P.H. Hot-wire anemometer for spirography. Med. Biol. Eng. Comput. 36, 17–21 (1998).

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  • Hot-wire anemometer
  • Spirometer
  • Respiratory gas flow measurements