Coriolis Force
An inertial force that appears in rotating reference frames, causing moving objects to deflect perpendicular to their direction of motion. Its magnitude is given by 2mωv. The Coriolis force is a significant factor in Earth's atmospheric circulation, the rotational direction of cyclones, and physical phenomena inside rotating space stations.
Timeline (last 90 days)
MEMS gyroscopes use a vibrating scheme, in which a proof mass microfabricated from silicon vibrates at high frequency under the action of drive electrodes, and when rotating, the Coriolis force deflects the vibration direction, with the angular velocity calculated by detecting changes in capacitance.
The Coriolis force is a fictitious force: when an object moves in a straight line in a rotating reference frame, an observer sees its trajectory curve; its magnitude is proportional to the angular velocity of rotation.
The Coriolis force acting on a person of mass m moving at velocity v relative to the inner surface of the cylinder has a magnitude of 2mωv, directed perpendicular to the plane formed by the direction of motion and the axis of rotation.
For a cylinder 8 kilometers in diameter providing 1g of gravity, the angular velocity ω is approximately 0.028 radians/second, and the Coriolis acceleration for a person walking at 1.4 m/s is approximately 0.08 m/s² (about 0.008g), near the threshold of human perception.
If the sign or direction of the Coriolis force is calculated incorrectly, a player-controlled character will exhibit a counterintuitive drifting phenomenon when turning and walking, which can serve as a test indicator for verifying physical correctness.
All Facts (5)
MEMS gyroscopes use a vibrating scheme, in which a proof mass microfabricated from silicon vibrates at high frequency under the action of drive electrodes, and when rotating, the Coriolis force deflects the vibration direction, with the angular velocity calculated by detecting changes in capacitance.
50%UnverifiedThe Coriolis force is a fictitious force: when an object moves in a straight line in a rotating reference frame, an observer sees its trajectory curve; its magnitude is proportional to the angular velocity of rotation.
50%UnverifiedThe Coriolis force acting on a person of mass m moving at velocity v relative to the inner surface of the cylinder has a magnitude of 2mωv, directed perpendicular to the plane formed by the direction of motion and the axis of rotation.
50%UnverifiedFor a cylinder 8 kilometers in diameter providing 1g of gravity, the angular velocity ω is approximately 0.028 radians/second, and the Coriolis acceleration for a person walking at 1.4 m/s is approximately 0.08 m/s² (about 0.008g), near the threshold of human perception.
50%UnverifiedIf the sign or direction of the Coriolis force is calculated incorrectly, a player-controlled character will exhibit a counterintuitive drifting phenomenon when turning and walking, which can serve as a test indicator for verifying physical correctness.
50%