Over six decades ago, Hydra-Electric developed and patented the snap action sensing of pressure by means of the negative rate disc spring, employing an additional trim spring for pressure adjustment. This environmentally superior powered snap action design has since become the standard for critical aerospace applications.
As the sole supplier of negative rate disc spring pressure switches, Hydra-Electric grew quickly furnishing pressure switches for fuel, hydraulic, pneumatic airspeed and barometric (altitude) applications for most high performance jet powered aircraft programs. Hydra-Electric has continued to innovate the negative rate spring and pressure sensing systems, applying its designs to thousands of aircraft and missile systems.
Hydra-Electric has also introduced breakthrough technology in high performance sensors. These patented and patent-pending designs address problems that older technologies cannot.