SYSTEM FOR TESTING PRESSURE PROBES USING A SIMPLE SINUSOIDAL PRESSURE GENERATOR

摘要

A simply built and easily operated pressure generator is described which is capable of producing sinusoidal pressures at frequencies ranging between 300 and 5000 Hz and peak-to-peak amplitudes to 5.6 psi (3. 9 N/cm ). The generator design is based on the Galton tube which is a resonant tube driven by an annular air jet. Instrumentation for making frequency, amplitude, and phase angle measurements is described. A typical data plot of the frequency response of a pressure probe is given.