| 摘要 |
PURPOSE: To enhance the detecting sensitivity of an acceleration by correcting the errors of a plurality of acceleration sensors so disposed that the directions of main sensitivities cross each other due to the lateral sensitivity by the calcula tion from the outputs of the respective sensors. CONSTITUTION: The acceleration sensors 1, 2 so disposed that the directions of main sensitivities k1 cross each other, and an arithmetic circuit 3 for calculating the outputs V1, V2 of the sensors 1, 2 are provided. The circuit 3 corrects the errors of the outputs of the sensors 1, 2 due to a lateral sensitivity k2 by the calculation. Further, the circuit 3 calculates α}= K}<-1> V}, wherein the sensitivity matrix for giving an output vector V} for an acceleration vector α}is K}, thereby calculating the accelerations in a plurality of axial directions. The sensitivities k1 and k2 are substantially equalized between the sensors 1 and 2 to simplify the designing of the circuit 3. Moreover, the circuit 3 calculates the axes only by an inverting amplifier, thereby easily selecting a circuit material. |
