The accelerometer and tilt sensor based on natural convection gas pendulum

It is discovered that the natural convection gas has the pendulum characteristic, which leads to the introduction of the new concept of gas pendulum. In this paper, the buoyancy lift of natural convection gas is analyzed in a hermetic chamber, and the relationship between the buoyancy lift and the change of temperature is formulated. The experimental results have shown that the gas pendulum can be utilized to sense the acceleration and the tilt angle similar to the solid pendulum and liquid pendulum.