Pressure-sensor apparatus

摘要

A sensing apparatus for determining the pressure of a fluid includes first and second support members. The first and second support members are configured to define at least one sealed chamber. A flexible diaphragm is disposed between the first and second support members. The diaphragm includes first and second opposing surfaces. The first opposing surface is in fluid communication with a first fluid-flow circuit, and the second opposing surface is in fluid communication with a second fluid-flow circuit. A first electronic circuit is disposed within the at least one chamber and coupled to the diaphragm for sensing a first differential pressure associated with the first and second flow circuits. The first electronic circuit is configured to produce at least one electrical signal proportional to a magnitude of the first differential pressure.