INTEGRATED PRESSURE SENSOR WITH DOUBLE MEASURING SCALE, PRESSURE MEASURING DEVICE INCLUDING THE INTEGRATED PRESSURE SENSOR, BRAKING SYSTEM, AND METHOD OF MEASURING A PRESSURE USING THE INTEGRATED PRESSURE SENSOR

摘要

A pressure sensor (15) with double measuring scale, comprising: a flexible body (16, 34) designed to undergo deflection as a function of a said pressure (P); piezoresistive transducers (28, 29; 94) for detecting the deflection; a first focusing region (30) designed to concentrate, during a first operating condition, a first value (P INT1 ) of said pressure (P) in a first portion (19) of the flexible body (16, 34) so as to generate a deflection of the first portion (19) of the flexible body (16, 34); and a second focusing region (33) designed to concentrate, during a second operating condition, a second value (P INT2 ) of said pressure (P) in a second portion (17) of the flexible body (16, 34) so as to generate a deflection of the second portion (17) of the flexible body (16, 34). The piezoresistive transducers correlate the deflection of the first portion (19) of the flexible body (16, 34) to the first pressure value (P INT1 ) and the deflection of the second portion (17) of the flexible body (16, 34) to the second pressure value (P INT2 ).