| 摘要 |
PROBLEM TO BE SOLVED: To provide a conversion device for a gyro scope wherein more accurate angular output is detected by effectively removing a disturbance noise contained in the angular speed output of a gyro, especially that in synchronous with the sampling cycle of an A/D converter. SOLUTION: A time constant T1 of a first low-pass filter 10 is set to a sampling cycle Ts of an A/D conversion means 7 or below while a cutoff frequency f2 of a second low-pass filter 20 is set to a sampling frequency fs or above. With this, since the first low-pass filter 10 is operated as a primary low-pass filter, or an integrator, at the sampling frequency fs, a disturbance noise is integrally interpolated as a simple manner for cancel. Further, it functions as a secondary low-pass filter to the disturbance noise at a frequency above that, an angular output where a disturbance noise is more effectively removed is provided. |
