| 摘要 |
A speedometer correction apparatus is disclosed. The speedometer correction apparatus comprises a fixing member combined to a transport unit transporting a material, a housing member combined to the fixing member, a to-be-measured member provided to be able to move in the housing member, and a correction member correcting an error of a speedometer based on a measured distance value obtained by measuring a movement distance of the to-be-measured member at the speedometer and an actual movement distance which the to-be-measured member actually moved. |
