Patent ID: 7292000
Filing Date: 2007-11-06
Classification: B25J,G01C,G01P

Abstract:
1. An angular velocity measuring device comprising: a first sensor for generating a detected output of an angular velocity; a second sensor for generating a detected output of an angular velocity with lower drift of the detected output than in the first sensor; a high-frequency pass filter for being inputted the detected output of the first sensor and outputting higher frequency components than a predetermined frequency in the detected output; storage means for sequentially storing output values of the high-frequency pass filter; subtraction means for sequentially performing operations of subtracting an output value at a time a predetermined time period earlier, which is stored in the storage means, from the output value of the high-frequency pass filter; and addition means for sequentially performing operations of adding a value obtained by the subtraction means to the output value of the second sensor, wherein a value obtained by the addition means is obtained as an angular velocity measurement.