  Thin metallic shallow spherical diaphragms are being used for measuring
pneumatic pressure in process industries. The drift in vertex realized due to
application of pressure is transformed into electrical signal and this is
calibrated for pressure. We now propose a modified structure for the pressure
cell by having double ended shallow spherical shells embedded with spherical
corrugations as to enhance the sensitivity to a greater extent. By having dual
such installation in the structure of the pressure cell it concedes further
increase in sensitivity. The construction details of the diaphragm structure,
theory and analysis to assess the performance are presented.
