| 摘要 |
FIELD: the invention refers to the field of research of chemical and physical properties of a substance and may be used at reduction of emission spectral analysis of the substance. ^ SUBSTANCE: the essence of the invention is in applying in the generator's arc the feeding of three-phase alternate current. In the mode of constant current the feeding of the generator is applied from a source of three-phase alternate current with a three-phase rectifier of current. At that before the rectifier capacitive loads are located in each phase, in quality of electric loads a set of condensers is applied. Timers are applied for automatic switching of condensers to the basic load of the arc with the aid of contactors in the given moments of burning of the arc with the aim to change the current of the arc during its burning. The generator's block of burning of the arc is made remote with using a thyristor electronic scheme of generation of a spark. For possibility of creation of multi-pole arcs in the body of the generator's arc an additional generator is located similar to the basic generator in which a dividing transformer allowing execute electrically not connected arc charges is installed. ^ EFFECT: expands functional possibilities, automation of control of the process of the generator's arc, standardization of conditions of output of spectrums and creation of more comfortable conditions of work. ^ 2 cl, 1 dwg |
