2016 Volume 24 Issue 3 Pages 172-177
It permeates widely in an industrial field, and a linear motor is applied variously. Linear DC motor (LDM) often fits the drive field of which you request single stroke fast response below the 100 mm in particular. Under the condition of limited power supply capacity and an outside dimension, the structure of LDM is investigated. We especially focus on number of turns, and investigate maximum delay time of displacement command to displacement response is within 150 μs. In case of coil with 68 turns, measured of maximum delay time is 108 μs, so the target is achieved. Number of turns is changed to fast-response, and coil with 40 turns is optimum condition. In case of E = 24 V, maximum delay time of 68 turns and 40 turns are 108 μs and 95 μs respectively, and maximum delay time of 40 turns reduced 12 % than that of 68 turns.
