Bourdon pressure gauge

Bourdon pressure gauge

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Credit: SCIENCE PHOTO LIBRARY

Caption: Bourdon gauge manometer. A flattened, closed-ended tube is bent into a C-shape. The open end is connected to a fixed pipe connected to the fluid whose pressure is to be measured. As pressure increases, the tube tends to try to straighten, this tiny movement is magnified by a gear system into the rotation of a pointer on a dial. This gives a gauge pressure (relative to atmospheric).

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Keywords: analogue, atmospherics, bourdon, fluid, gas, gauge, instrument, magnification, manometer, measurement, measuring, mechanical, metal, no-one, nobody, physical, physics, pressure, pressurised, relative, school science, science education, statics, tube, tubular

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