The Baumer pressure gauge works on a simple mechanical principle. When pressure is applied, a flexible sensing element like a Bourdon tube or diaphragm deforms. This deformation is directly proportional to the applied pressure. In a Bourdon-type gauge, the curved tube tends to straighten when pressure increases. This movement is transferred through linkages and gears to a pointer that moves on the dial, showing the pressure value.
In electronic versions, Baumer pressure sensors use a piezoresistive principle. Here, pressure changes the electrical resistance of a silicon diaphragm. The sensor measures this change and converts it into an electrical signal that represents the pressure. This combination of mechanical and electronic precision makes Baumer pressure gauges accurate, reliable, and widely used in industrial automation systems.