Pressure sensor

A pressure sensor, comprising a first pedestal and an electrode member, wherein the first pedestal is provided with a supporting portion for supporting the electrode member, and a plurality of adjusting members are stacked in sequence between two opposite surfaces of the electrode member and the supporting portion;

• and
• thermal expansion coefficients of the electrode member, the plurality of adjusting members, and the first pedestal gradually increase in a direction from the electrode member to the supporting portion,
• wherein an amount of a shear-strain deformation of each of the adjusting members during thermal expansion is increased by reducing at least one of contact area, a ratio, a shear modulus of the adjusting members, and an elastic modulus of the adjusting members;
• the contact area comprises first contact area of contact surfaces between one adjusting member and the electrode member, second contact area of contact surfaces between another adjusting member and the supporting portion, and third contact area of contact surfaces between two adjacent adjusting members;
• and
• each adjusting member is a ring, the ratio comprises a first ratio of the first contact area to a radial width of the ring, a second ratio of the second contact area to the radial width of the ring, and a third ratio of the third contact area to the radial width of the ring, and the radial width is a difference between an outer radius of the adjusting member and an inner radius of the adjusting member.