Gas pressure sensor

A gas pressure sensor comprising:

• a first squeeze-film damping structure including a first object and a second object capable of moving relative to the first object, wherein a squeeze-film damping phenomenon occurs between the first object and the second object;
• a second squeeze-film damping structure including a third object and a fourth object capable of moving relative to the third object, wherein a squeeze-film damping phenomenon occurs between the third object and the fourth object;
• a first measuring instrument to measure a displacement of the second object;
• a second measuring instrument to measure a displacement of the fourth object;
• and
• a computing device to calculate a thermal noise generated in the second object and the fourth object by making a common-mode cancellation of displacement caused by a common disturbance from the measured displacement of the second object and the measured displacement of the fourth object and to calculate, from the thermal noise, an ambient pressure of the first squeeze-film damping structure and the second squeeze-film damping structure.