Curvometer for surveying measurement - has measuring wheel linked to toothed wheel and opto-electronic sensor for direct measurement of distance covered

摘要

The curvometer includes a measuring wheel (2) attached to a pinion (3) which is in contact with a toothed wheel (4). An opto-electronic device (5) including a light source (6) and detector (7) counts the number of steps by which the toothed wheel is advanced. This information is transmitted to an electronic processing circuit (30) including a microprocessor (10) and interface (21) for connection to a computer (20). The curvometer includes a double function switch (9). One function allows the device to start and stop counting the rotation of the wheel, while the second function controls the transmission of the count to the computer. ADVANTAGE - Curvometer allowing direct measurement and transmission of measured value to computer.