Abb Technology Ag

Abb Schweiz Ag

Gabriele Crotti

Eugenio Volonterio

A pressure transmitter and method for measuring pressure exerted by a fluid on the diaphragm of the pressure transmitter. A pressure sensor assembly can include a diaphragm displaceable under pressure exerted by the fluid, and first and second electronic circuits generating first and second oscillating signals, respectively, whose frequencies depend on the displacement of the diaphragm. First and second numerical values which are representative of the oscillating frequencies of the first and second oscillating signals, respectively. A signal indicates pressure exerted by the fluid on the diaphragm based on the first and second calculated numerical values.

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San Fedele Intelvi, Italy

Gabriele Crotti