| 摘要 |
<p>Mapping apparatus comprises: (a) a gyroscope and a carrier frame therefor, (b) the gyroscope characterized as having a spinning rotor and torsion structure defining a gimbal, and wherein the rotor spin frequency has a predetermined relation to a resonant frequency of said structure, (c) the gyroscope further characterized as having two input axes, and an output axis about which the spin rotor rotates, (d) drive means operatively connected with said frame to rotate the frame about one of said axis, and (e) the gyroscope having means to detect rotor pivoting about one of said two input axes in response to said rotation of the frame. A second gyroscope may be employed, with its frame. rotated by the same drive means; and the output axes of the two gyroscopes are typically orthogonally related.</p> |
