| An automatic angle-measured apparatus includes a driving unit coupled with a clamping plate and a driving seat, an encoding unit located at an end of the driving unit facing the driving seat and signally connected to the driving unit, at least one attitude sensor located at the driving seat, and a control unit signally connected to the encoding unit and the attitude sensor. The attitude sensor senses the un-rotated and the rotated driving seat to generate a first and a second signals, respectively. The control unit bases on the first and the second signals to calculate an offset. The control unit controls the driving unit to rotate a predetermined angle. The encoding unit bases on the predetermined angle to generate location information. The control unit bases on the first signal, the second signal and the location information to calculate angle information and compensation for performing a correction procedure. |
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