Abstract: A pressure sensing system and method includes a pressure sensor configured to include a pressure sensing diaphragm and a pressure port. A memory circuit incorporated can be incorporated into the pressure port. A high order polynomial component can also be provided. One or more excitation signals are then applicable to the pressure sensor such that a voltage output thereof is measured and recorded at a plurality of predefined temperatures and pressures in order to generate pressure sensor output data. Such output data is then automatically input to the high order polynomial component in order to generate a set of correction coefficients usable for improving the accuracy of the pressure sensor. The pressure sensing diaphragm is preferably based on an Advanced Thick Film (ATF) configuration.

Abstract: A transducer apparatus is disclosed herein, including a method thereof for forming the transducer apparatus. A metal diaphragm can be molecularly bonded to a ceramic material to form a ceramic surface thereof. A bridge circuit is connected to the ceramic surface of the metal diaphragm. An input pressure port for pressure sensing thereof can then be provided, wherein the input pressure port is connected to the metal diaphragm to thereby form a transducer apparatus comprising the metal diaphragm, the bridge circuit and the input pressure port. The metal diaphragm is preferably welded to the input pressure. The metal diaphragm and the ceramic surface thereof preferably operate over a temperature of range of at least 40° C. to 150° C., as does the transducer apparatus. The transducer apparatus functions as a pressure transducer that can be used in corrosive media and high temperature applications.