| 摘要 |
The invention relates to an electronic angle measuring device for measuring the bending angle between the limbs (4) a metal sheet (5), comprising a sensor element (7) which supplies angle-equivalent signals without contact to a signal processing device (9) that includes a microprocessor and a memory unit and is connected to a digital display (10). In order to obtain advantageous measurement conditions, it is proposed that the sensor element (7), which deflects a laser beam by means of a rotating mirror onto the two limbs (4) of the sheet (5) and forms a measurement value from the reflection beam received in the emission direction, the signal processing device (9) with the microprocessor and the memory unit as well as the digital display (10) form an angle measurement apparatus (6) which is attachable to an upper tool (1) of a bending machine and can be used as a hand-held measurement apparatus. |
