THIN-FILM PRESSURE TRANSDUCER Russian patent published in 1995 - IPC

FIELD: measurement technology. SUBSTANCE: pressure transducer has membrane 2 with dielectric 3, onto which central resistance strain gauges 4 are disposed (in form of rings which are disposed equidistant to the circuit of the membrane), as well as peripheral resistance strain gauges. The latters are made in form of isosceles trapezoids, which have longitudinal axes to be disposed along the radius of the membrane. Bases of the trapezoids are made along the arc of corresponding circle; smaller base coincides with circuit of the membrane. Width of peripheral resistance strain gauges is determined from the relation given in the description of the invention. EFFECT: improved precision of measurement. 14 cl, 4 dwg, 1 tbl