Pressure Wave Generators

Our pressure wave generators (PWG) are valveless electroacoustic devices - like extremely powerful audio speakers - that produce high-intensity acoustic power. They are designed to alternately compress and expand inert gases to drive acoustic loads such as thermoacoustic Stirling (‘pulse tube’) and Stirling cryocoolers. PWG’s can be used to drive other loads that require oscillating pressure and flow, such as thermoacoustic refrigerators, or experiments to characterize conceptual Stirling cryocoolers or engine components. Pressure amplitudes up to 25% of mean pressure to 30 bar and volume amplitudes of 300 liters/second are possible with matched, pressurized loads.