Use of piezoelectric foil for flow diagnostics

  title={Use of piezoelectric foil for flow diagnostics},
  author={Debra L. Carraway and Arild Bertelrud},
  journal={International Congress on Instrumentation in Aerospace Simulation Facilitie},
A laboratory investigation was conducted to characterize two piezo film sensor configurations, a rigidly mounted sensor and a sensor mounted over an air cavity. The sensors are evaluated for sensitivity and frequency response, and methods to optimize data are presented. The cavity mounted sensor exhibited a superior frequency response and was more sensitive to normal pressure fluctuations and less sensitive to vibrations through the structure. Both configurations were sensitive to large-scale… CONTINUE READING