| 摘要 |
<p>An apparatus (20) for measuring angles, typically a bevel square, having a first arm (27), a second arm (21) pivotally attached to the first arm, a transducer (62, 63) for detecting changes in the angular position of the second arm (21) relative to the first arm (27), a controller (66) communicating with the transducer (62, 63) for calculating an angular position value of the second arm (21) relative to the first arm (27) and an output device (67) communicating with the controller (66) which outputs the angular position value.</p> |
