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

A pressure measuring device, comprising:

• a measuring circuit;
• and
• a sensor assembly electrically coupled to the measuring circuit and including a pressure sensor with double measuring scale, the pressure sensor being configured to receive a pressure acting in a direction and including:
• a flexible body configured to undergo, at least in part, deflection as a function of said pressure;
• a first substrate arranged facing a first side of the flexible body;
• a transduction assembly configured to generate a first output signal and a second output signal as a function of deflections of respective first and second portions of the flexible body;
• a first focusing region arranged between the first substrate and the flexible body and configured to concentrate, during a first operating condition, a first pressure value of said pressure in the first portion of the flexible body and generate a deflection of only the first portion of the flexible body;
• and
• a second focusing region arranged between the first substrate and the flexible body and configured to concentrate, during a second operating condition, a second pressure value of said pressure in a second portion of the flexible body and generate a deflection of the second portion of the flexible body,
• the transduction assembly being configured to generate the first output signal during the first operating condition by correlating the deflection of the first portion of the flexible body to the first pressure value, and to generate the second output signal during the second operating condition by correlating the deflection of the second portion of the flexible body to the second pressure value.

A system, comprising:

• a pressure actuator configured to produce a pressure acting in a direction;
• and
• a pressure measuring device that includes a measuring circuit and a pressure sensor with double measuring scale, the pressure sensor being configured to receive the pressure acting in the direction and including:
• a flexible body configured to undergo, at least in part, deflection as a function of said pressure;
• a first substrate arranged facing a first side of the flexible body;
• a transduction assembly configured to generate a first output signal and a second output signal as a function of deflections of respective first and second portions of the flexible body;
• a first focusing region arranged between the first substrate and the flexible body and configured to concentrate, during a first operating condition, a first pressure value of said pressure in the first portion of the flexible body and generate a deflection of only the first portion of the flexible body;
• and
• a second focusing region arranged between the first substrate and the flexible body and configured to concentrate, during a second operating condition, a second pressure value of said pressure in a second portion of the flexible body and generate a deflection of the second portion of the flexible body,
• the transduction assembly being configured to generate the first output signal during the first operating condition by correlating the deflection of the first portion of the flexible body to the first pressure value, and to generate the second output signal during the second operating condition by correlating the deflection of the second portion of the flexible body to the second pressure value.

A method, comprising:

• measuring a pressure by a pressure sensor with double measuring scale provided with:
• a flexible body configured to undergo, at least in part, deflection as a function of said pressure;
• a first substrate arranged facing a first side of the flexible body;
• a transduction assembly configured to generate a first output signal and a second output signal as a function of the deflection of the flexible body;
• a first focusing region;
• and a second focusing region, the measuring including:
• applying, during a first operating condition, a first pressure value of said pressure to said pressure sensor;
• concentrating, through the first focusing region, the first pressure value at a first portion of the flexible body and generate a deflection of the first portion of the flexible body;
• applying, during a second operating condition, a second pressure value of said pressure to said pressure sensor;
• concentrating, through the second focusing region, the second pressure value at a second portion of the flexible body and generate a deflection of the second portion of the flexible body;
• correlating, by the transduction assembly, the deflection of the first portion of the flexible body to the first pressure value during the first operating condition;
• generating, the first output signal as a function of the deflection of the first portion of the flexible body;
• correlating, by the transduction assembly, the deflection of the second portion of the flexible body to the second pressure value during the second operating condition;
• and
• generating, the second output signal as a function of the deflection of the second portion of the flexible body.