High resolution air flow velocity monitoring using air flow resistance-type sensor film (AFRSF)
By Fan, Yingzheng; Dai, Zheqin; Xu, Zhiheng; Zheng, Sikai; Dehkordy, Farzaneh MahmoodPoor; Bagtzoglou, Amvrossios; Zhang, Wei; Gao, Puxian; Li, Baikun
Published in Sensors and Actuators A: Physical
2019
Abstract
Real time in situ monitoring of air flow rate is critical for diverse engineering units including blowers, air supply pipelines, wind tunnels and anaerobic digestors. Existing air flow sensors are either costly and bulky or require frequent calibration and maintenance. This study explored a distinct solution by developing flat flexible thin air flow resistance-type sensor films (AFRSF) using thermal press technology to precisely print interdigitated sensors onto polyimide films. The continuous flow tests in a wind tunnel indicated that AFRSF sensors accurately measured airflow velocity (7.5 m/s
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