A similar approach is used for the piezoelectric relative pressure transducer, except no bias error is considered, as the combined uncertainty from the intake absolute pressure transducer
is the biased error for the overall pressure measurement.
An absolute pressure transducer
and a differential pressure transducer used one channel each, leaving 10 for temperature data.
The 8540 series of miniature high-sensitivity piezoresistive absolute pressure transducers
range from 15 to 500 psia, with a face diameter of 0.15 in.
Using specially developed absolute pressure transducers
and pneumatic systems, the equipment allows the dry air leak testing of, for example, gas valves or hydraulic brake components to extremely high pressures on the shop floor with relative economy.