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Journal of Sensors and Sensor Systems An open-access peer-reviewed journal
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Volume 5, issue 2
J. Sens. Sens. Syst., 5, 283–291, 2016
https://doi.org/10.5194/jsss-5-283-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Sensor/IRS2 2015

J. Sens. Sens. Syst., 5, 283–291, 2016
https://doi.org/10.5194/jsss-5-283-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Regular research article 19 Jul 2016

Regular research article | 19 Jul 2016

Hot-film and calorimetric thermal air flow sensors realized with printed board technology

Thomas Glatzl1, Samir Cerimovic1, Harald Steiner1, Almir Talic1, Roman Beigelbeck1, Artur Jachimowicz2, Thilo Sauter1,3, and Franz Keplinger2 Thomas Glatzl et al.
  • 1Center for Integrated Sensor Systems, Danube University Krems, Wiener Neustadt, Austria
  • 2Institute of Sensor and Actuator Systems, TU Wien, Vienna, Austria
  • 3Institute of Computer Technology, TU Wien, Vienna, Austria

Abstract. This paper addresses the development of flow sensors optimized for heating, ventilating, and air conditioning systems. The sensors are based on the printed circuit board technology facilitating robust, flexible (in terms of layout), and cost-effective devices. Two approaches for measuring fluid quantities like flow velocity over the whole cross section are investigated in this context. The first one relies on hot-film transduction and stands out for its simplicity, but also shows some severe limitations, which can be circumvented by the second approach based on calorimetric transduction. Supported by extensive numerical simulations, several sensor embodiments were investigated and fabricated. After experimental characterization, measurement and simulation results were compared, which turned out to be in good agreement.

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This paper addresses the development of flow sensors optimised for heating, ventilating, and air conditioning systems. The sensors are based on the printed circuit board technology facilitating robust, flexible (in terms of layout), and cost-effective devices. Two approaches for measuring fluid quantities are investigated in this context and several sensor embodiments were investigated and fabricated. After experimental characterisation, measurement and simulation results were compared.
This paper addresses the development of flow sensors optimised for heating, ventilating, and air...
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