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Last download on: Mon May 20, 2013 09:40:04 PM
[ Flapper nozzle amplifier ~ Performance Analysis ~ Flapper Nozzle Amplifier with Feedback ~ Electro-pneumatic Signal Converter ~ Pneumatic Valve Positioner ]
objectives: Explain with a sketch the principle of operation of a flapper nozzle amplifier; Derive the approximate relationship between the output pressure and displacement for a flapper nozzle amplifier; Justify the use of air relay in conjunction with a flapper nozzle amplifier; Explain the advantage of using closed loop configuration of flapper nozzle amplifier; Sketch and explain the operation of a flapper nozzle amplifier in closed loop; Explain the limitation of a direct acting type valve positioner; Explain the principle of operation of a feedback type valve positioner; contents: [ Flapper nozzle amplifier ~ Performance Analysis ~ Flapper Nozzle Amplifier with Feedback ~ Electro-pneumatic Signal Converter ~ Pneumatic Valve Positioner ]
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i liked and good idea
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