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Bourdon gauge

Bourdon gauge - Click to enlarge
Bourdon gauge - Click to enlarge
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Instrument for measuring pressure, patented by French watchmaker Eugène Bourdon in 1849. The gauge contains a C-shaped tube, closed at one end. When the pressure inside the tube increases, the tube uncurls slightly, causing a small movement at its closed end. A system of levers and gears magnifies this movement and turns a pointer, which indicates the pressure on a circular scale. Bourdon gauges are often fitted to cylinders of compressed gas used in industry and hospitals.

© RM 2012. Helicon Publishing is division of RM.


 
 

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