Wind tunnel testing enables researchers to study airflow around models before constructing full-scale designs. Traditional rear mounting supports hold models in place but have limited internal space, preventing pressure sensors and force-measuring systems from operating simultaneously. We designed a compact wireless data transmission device to solve this problem, allowing both systems to run concurrently and improving overall testing efficiency.
We evaluated multiple wireless communication methods, including Wi-Fi and Bluetooth, ultimately selecting a laser-based system for our final design. The aluminum model construction blocked most wireless signals, preventing data transmission through the walls. We addressed this challenge by adding a small window to the model, enabling the laser signal to transmit data without interference.
We integrated the device to fit inside the wind tunnel model, using an internal power source to operate the electronics. The device collects data from the pressure sensors and transmits it through the laser to a receiver, which stores the information on a computer for analysis.
We conducted tests to verify the data transmission reliability. Our results confirmed that the laser-based system successfully transmitted pressure sensor data, with stored device data verifying the outcomes. The adaptable design allows researchers to create smaller-scale versions for use with reduced-size wind tunnel models. This device enables researchers to conduct wind tunnel testing more efficiently and flexibly by eliminating the previous constraint of running only one measurement system at a time.
