Thin-film strain gauge
Principle of thin-film strain gauge
A thin-film Wheatstone bridge, as a resistive sensor element, is bonded directly to a stainless steel diaphragm. Flexure of the diaphragm as the result of the external pressure causes a change in the resistances of this Wheatstone bridge, which is converted to a pressure-proportional signal. Very high burst pressures and highly precise pressure measurements can be implemented by using this measuring method. Even applications in environments subject to shock and vibration can be easily implemented.