PVDF Pressure Sensor for Studying Shock Wave Interactions
Author Information
Author(s): Wang Bei, Corsi Cosimo, Weiland Thomas, Wang Zhenyu, Grund Thomas, Pohl Olaf, Bienia Johannes Max, Weiss Julien, Ngo Ha Duong, Dai Ching-Liang, Tsai Yao-Chuan, Dai Zhi-Xuan
Primary Institution: Department of Microsystem Technology, University of Applied Sciences Berlin
Hypothesis
The study aims to develop a PVDF piezoelectric sensor array optimized for low-frequency pressure fluctuation detection in shock wave boundary layer interactions.
Conclusion
The PVDF sensor array effectively captured low-frequency pressure fluctuations in wind tunnel tests, demonstrating its potential as a reliable alternative to traditional sensors.
Supporting Evidence
- The PVDF sensor array was tested in a supersonic wind tunnel at Mach 2.
- Wind tunnel tests showed that the PVDF sensors captured pressure fluctuations consistent with those recorded by Kulite sensors.
- Finite Element Method simulations indicated the sensor's potential for high-frequency responses up to 300 kHz.
Takeaway
Researchers created a special sensor that can measure pressure changes in fast-moving air, helping to understand how shock waves affect planes.
Methodology
The sensor was fabricated using a double-sided screen-printing technique and tested in a supersonic wind tunnel at Mach 2.
Limitations
The study primarily focused on low-frequency calibration, with high-frequency performance needing further exploration.
Digital Object Identifier (DOI)
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