| 摘要 |
The present invention relates to linear measuring apparatus for measuring elongated materials, such as cables. The apparatus includes a measuring station which comprises two endless belts which run over two pulleys and between which the material to be measured is drawn. The measuring station is provided with sensors to which a counter unit is connected for indication of material lengths. According to the invention, the endless belts (5a, 5b) extend horizontally, side-by-side, and resiliently abut the material to be measured. The sensors (13) are pulse generators and each pulse generator is connected to one pulley (6a, 6b) of each belt, the pulses generated by the pulse generators (13) being sent to the counter unit (2) where the mean value of the generated pulses represent the measured length. A marking unit (3) is arranged downstream of the measuring station (1) and is connected to the counter unit (2) for marking the elongated material at selected points of the measured length. A further pulse generator (14) is connected to the other pulley of the one belt, this further pulse generator (14) delivering pulses to the marking unit (3), via the counter unit (2), for supplying speed information to the marking unit. <IMAGE> |
