Proceedings of the International Conference on Sustainable Green Tourism Applied Science - Engineering Applied Science 2025 (ICOSTAS-EAS 2025)

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Design and Development of an Arduino-Based Instrument for Measuring Drag and Lift Forces in Wind Tunnel

Authors
I Putu Gede Sopan Rahtika1, *, I Made Suarta1, I Komang Rusmariadi1, I Made Agus Putrawan1
1Mechanical Engineering Department, Politeknik Negeri Bali, Bali, Indonesia
*Corresponding author. Email: putugedesopanrahtika@pnb.ac.id
Corresponding Author
I Putu Gede Sopan Rahtika
Available Online 31 October 2025.
DOI
10.2991/978-94-6463-878-3_44How to use a DOI?
Keywords
Aerodynamic Measurement; Arduino; Drag and Lift Forces; Load Cell; Wind Tunnel
Abstract

Aerodynamic testing in wind tunnels requires accurate and reliable systems for measuring drag and lift forces. This study aims to design and develop an Arduino-based instrument capable of measuring aerodynamic forces in real time with high precision. The system utilizes load cells as the primary sensors to detect force changes resulting from airflow interactions with the test model. The HX711 module is used to amplify and convert the signals into digital data, which are then processed by an Arduino. Calibration tests yielded a linear regression with R2>0.998, confirming excellent linearity, while repeatability tests showed relative errors consistently below 3%. Experimental validation in a subsonic wind tunnel with varying flow velocities demonstrated that the instrument could accurately capture both drag and lift forces, with measured values deviating less than ±8% from theoretical predictions. These results highlight the system’s accuracy, repeatability, and suitability for aerodynamic studies of airfoils, vehicle models, and wind energy devices, providing a low-cost yet robust alternative to conventional wind tunnel force balances.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the International Conference on Sustainable Green Tourism Applied Science - Engineering Applied Science 2025 (ICOSTAS-EAS 2025)
Series
Advances in Engineering Research
Publication Date
31 October 2025
ISBN
978-94-6463-878-3
ISSN
2352-5401
DOI
10.2991/978-94-6463-878-3_44How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - I Putu Gede Sopan Rahtika
AU  - I Made Suarta
AU  - I Komang Rusmariadi
AU  - I Made Agus Putrawan
PY  - 2025
DA  - 2025/10/31
TI  - Design and Development of an Arduino-Based Instrument for Measuring Drag and Lift Forces in Wind Tunnel
BT  - Proceedings of the International Conference on Sustainable Green Tourism Applied Science - Engineering Applied Science 2025 (ICOSTAS-EAS 2025)
PB  - Atlantis Press
SP  - 393
EP  - 401
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-878-3_44
DO  - 10.2991/978-94-6463-878-3_44
ID  - Rahtika2025
ER  -