The first use of fluidic principles in control applications occurred about 1960. Fluidic devices are now used extensively in process control systems but their use in HVAC controls is somewhat limited. Fluidic amplifiers were used because of the high ratios available. So-called “self-powered” control systems using duct air supply pressures are essentially fluidic in nature. Although they use lower pressures than pneumatic devices, more air is consumed, so fluidic systems do require more power to operate.


Direct Force Process Control System Fluidic Signal Coanda Effect Pneumatic Device 
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Copyright information

© Van Nostrand Reinhold 1987

Authors and Affiliations

  • Roger W. Haines

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