BourdonRohre
BourdonRohre, also known as Bourdonrohre in German, are hollow curved tubes used for measuring pressure. They were invented by Eugène Bourdon in 1849 and remain a foundational element of many mechanical pressure gauges.
The tube is sealed at one end and connected to the pressure source at the other. When
The most common shapes are C-type, where the tube is a closed, curved bend; and also helical
Materials are chosen for elasticity and corrosion resistance, with brass, phosphor bronze, and stainless steel being
Bourdon tubes are robust, inexpensive, and do not require external power, making them suitable for gauges in
Limitations include temperature sensitivity, mechanical hysteresis, and long-term creep if not properly sized. Sensitivity decreases at
Today, Bourdon tubes remain widely used in mechanical gauges and in devices that require a simple, rugged