MICROPROCESSOR BASED HARDWARE-SOFTWARE COMPLEX FOR INVESTIGATING THE MAGNETIC SURFACES OF TORSATRON URAGAN-2M

One of the methods of studying the structure of closed magnetic surfaces in stellarators / torsatrons is a method of scanning fluorescent rod [1-6]. This method has been used to study the torsatron with additional toroidal magnetic field of torsatron URAGAN-2M [4-7]. The experimental session in 2008 of the automation of this method was developed on hardware-software complex described in the article [7]. The hardware of the complex has been implemented on a personal computer and a special module L-783 by L-card. Software of the complex was written in the language Borland C++ Builder 6. To solve the problem of creation the stellarator-mirror magnetic system by switching off one toroidal coil in the torsatron URAGAN-2M described in [8, 9] it was need to conduct a new series of experiments to measure the magnetic surfaces. To perform this work a new safe, protected from the noise, portable device based on microcontroller, which completely replaced the personal computer and an expensive unit L-783 was created. The new complex has been successfully applied in a series of experiments in 2012. This paper describes a new hardware-software control complex of the rod scanning motion in the chamber (Fig. 1) and presents some results of measuring (Fig. 2, Fig. 3) of the magnetic surfaces in the torsatron URAGAN-2M.