| Anti-rolling tank is an important stabilization equipment on watercraft and it has been popularly used to reduce ship rolling motion especially when the speed of ship is very slow and fin stabilizer could not take in effect because anti-rolling tank is very useful. At the present, all the anti-rolling tank is taken from abroad. In order to design the anti-rolling tank and equipped it on the watercraft, an experiment equipment is needed. The equipment can be used to emulate the ship motion and test the efficiency when the ship equips the tank. In the dissertation, it research on how use the DSP to control experiment equipment system. Some works have been done and they are:(1) Using computer simulate sea wave in different situation, and the differentdisturbed moment Mw has been got.(2) Selecting the components of the experiment equipment of ship rolling motion. Getting the transfer function of the system and analyssing it's robust. Designing digital PID control and simulating the system after the control been added.(3) Designing software and hardware for the control system. The hardware is a minister system and the processor is DSP(TMS320F240).The software includes some parts : PID arithmetic progranu System's initialize program> A/D and D/A transfer program^ RS-232 serial communication program and PDPINT(Power Driver Protection Interrupt) program.(4) Designing the sign transfer board and the driver board of electric and hydraulic servo mechanism.
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