A pressure gauge employing a coiled metallic tube which tends to straighten out when pressure is exerted within it.
- A reservoir with isolating valve allows the calibrator, Bourdon gauge and pressure sensor to be easily primed.
- Nevertheless, because of its simplicity and low cost, and the large selection of pressure ranges which are available, the Bourdon gauge is widely used in engineering practice.
- A Bourdon tube is coupled to an indicating needle driving mechanism of a Bourdon gauge at one end by way of a connecting arm fixed in place by welding.
Mid 19th century: named after Eugène Bourdon (1808–84), French hydraulic engineer.
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