| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance the reliability of a calibration work for an angle sensor, in a calibration device for the angle sensor. <P>SOLUTION: This device comprises the angle sensors 21b, 21a for detecting turning angles of a boom 4b and an arm 4a, a storage device 12 for storing a design output characteristic indicating a relation between output values xb, xa of the angle sensors and detection angles yb, ya corresponding to the output values, cylinders 7b, 7a for turning the boom 4b and the arm 4a to the first posture and second posture. The design output characteristics are corrected in response to deviations ΔIb, ΔIa between design values Ib, Ia settled on the basis of the design output characteristic in the first posture and the sensor output values xb, xa corresponding to the design values, and in response to deviations ΔHb, ΔHa between a boom height Hb and an arm height Ha determined on the basis of the design output characteristic in the second posture and observed values Hbm, Ham of the heights. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
