AN ELECTRONIC COORDINATOMETER FOR POSITION DETECTION

摘要

An electronic coordinatometer for position detection is made up of position detecting bus formed by connecting multiple measuring scales with the same length by multiple connecting plates, each measuring scale has a scale cover (3), a scale bottom (1), a wire holder (2) and an end frame (7), the wire holder (2) is fixed at the scale bottom (1), several sets of wires are wound around the wire holder (2) in Gray code, each measuring scale is sealed by the scale cover (3) and the scale bottom (1), the end frame (7) is fixed at two ends of the scale bottom (1), the wires in the measuring scale are drawn out from the end frame (7) to a connecting terminal (8) which is connected with the connecting plates, each connecting plate has a connecting cover (11), a connecting base (10) and a circuit board (9), the circuit board (9) is weld to the connecting base (10), a connecting seat (12) on the connecting base (10) is connected with both the printed conductor on the circuit board (9) and the connecting terminal (8), each connecting plate is sealed by the connecting cover (11) and the connecting base (10).