Design of a Radioactive Source Sampler Based on CPAC

This paper puts forward a design project of sampler for solving the difficult problem of radioactive source sampled by manual work because of radioactive source’s radioactivity. The project includes mechanical body’s design, controller’s design, and controller’s realization. According to mechanical body’s motion characteristics, advances an iterative learning algorithm of exponent variable-gain to design controller for the radioactive source sampler whose manipulator arm can follow the given tracks. The design can get satisfying track following control effect by computer simulation, and can content control demands of sampling process. On the realization of controller, applies Computer Programmable Automation Controller (CPAC) made in Googol Technology to sampler and gives its hardware’s realization method. Now the prototype tested has already substituted for tester to finish automatic sampling process in accordance with sampling program set in advance.