Fluidic Signal Generator with Independent Bias Pressure Control.

摘要

A fluidic signal generator with independent bias pressure control has been built and tested. This signal generator uses a dc torque motor-flapper valve assembly to effect a differential pressure output and a vacuum (aspirator) or a positive pressure source,to control the bias pressure level. The analytical prediction and the test results indicate that this signal generator can produce an ac pressure signal that rides on either a positive or negative bias pressure.