THIS PROGRAM WILL DEVELOP AND CALIBRATE AN ELECTRONC SENSOR TO VERIFY THE PARTIAL PRESSURE OF OXYGEN ACTUALLY BEING DELIVERED TO AIRCREWS AT BOTH HIGH AND LOW ALTITUDES.

THIS PROGRAM WILL DEVELOP AND CALIBRATE AN ELECTRONC SENSOR TO VERIFY THE PARTIAL PRESSURE OF OXYGEN ACTUALLY BEING DELIVERED TO AIRCREWS AT BOTH HIGH AND LOW ALTITUDES. IT WILL READ OUT CONTINUOUSLY AND IN REAL TIMEAND CAN BE SET TO TRIGGER AN ALARM IF THE OXYGEN PARTIAL PRESSURE VARIES OUTSIDE PREDETERMINED LIMITS. THE SENSOR IS BASED O THE REVERSIBLE SORPTION OF OXYGEN INTO A SUBSTRATE SUCH AS RUBRENE, SALCOMINE OR ONE OF SEVERAL METAL COMPLEXES ON VIBRATING PIEZOELECTRIC CRYSTAL WHOSE FREQUENCY DEPENDS UPON THE AMOUNT OF MATERIAL (OXYGEN) SOBRED, SO THAT THE CRYSTAL'S FREQUENCY IS A DIRECT FUNCTION OF THE OXYGEN PARTIAL PRESSURE. THE GENERAL TECHNOLOGY, THE HARDWARE AND THE ELECTRONICS ARE ALL STANDARD; ONLY THE OXYGEN SUBSTRATE NEEDS TO BE DEMONSTRATED, AND THE ROUTE TO THAT IS CLEAR.