Base on the analysis and research of the original control system of doublehousingplaner (B2012A), according to its special technics, designed a digital direct current speed control system.
The technical reformation method of doublehousingplaner is described in detail. The main problem solved by the method is introduced.
详细说明了龙门刨床的技术改造方法，介绍了此方法解决的主要问题。
3
Base on the analysis and research of the original control system of doublehousingplaner (B2012A), designed a opposing electromotance feedback control system.