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| [* black] In this photo is the ST LYPR540AH Tri-axis MEMS gyroscope. | |
| - | [* black] Arrays of capacitive plates drive two semiannular surfaces about a central axis perpendicular to the top plane of the gyro. |
| + | [* black] Arrays of central capacitive plates drive two semiannular surfaces about a central axis perpendicular to the top plane of the gyro, while arrays of sensing capacitive plates line the outer edge of the semiannular plates. |
| [* black] To achieve a linear displacement needed for feedback from the gyroscope, two equal masses are oscillated about the vertical axis. Since their velocities at any given point in time are opposite, external rotation of the device will induce forces opposite to each other. The direction of these forces depends on the axis of external rotation, and is given by the cross product of the vectors representing the axis of rotation and the linear velocity. |