NASA TN D-6166
Joseph S. Curreri, United States. National Aeronautics and Space Administration, Lewis Research Center
National Aeronautics and Space Administration, 1971 - Frequency response (Dynamics) - 16 pages
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0.24 centipoise 24 inches 40 hertz aliphatic petroleum naphtha average pressure level Bourdon tube cubic inch damping ratio density and viscosity diaphragm with capillary electrical output signal eutectic fluids were mercury frequency response curves Frequency response tests g/cm inches 15 input pressure input reference sine Lewis Research Center liquid-filled transducer LIQUID-METAL PRESSURE TRANSDUCERS LVDT maximum deviation mercury and aliphatic N/cm NaK-filled capillary NASA natural frequency varied oscillograph peak-to-peak pressure amplitudes percent Performing Organization petroleum naphtha solvent piston pound per cubic pounds per square pressure transducer systems pressure variations process fluids psia ranging in length ratio and phase reference sine wave reference transducers resonant frequency second-order system show natural frequency shown in figure Sinusoidal pressure fluctuations slack diaphragm slack-bellows pressure transducer slack-bellows transducer systems square inch absolute square root standoff tube length Test Facility test section tests were conducted theoretical predictions transducer being tested transducer systems commonly TRANSDUCERS WITH STANDOFF