| 摘要 |
PURPOSE:To reduce effective discharge length up to half conventional devices, and to increase excitation input power largely without arc by making a laser gas flow in a discharge excitation section collide with a collision section, branching the flow and arranging a cathode for discharge excitation to the upper stream of the collision section and anodes to each flow path branched in a lower stream. CONSTITUTION:A laser gas flow path is formed in such a manner that the gas passes between partition walls 13 from an inflow path 12 as shown in arrows 11' and is branched bilateral symmetrically in the discharge excitation section 14, passes through outflow paths 15 and is forwarded into a blower 18 through heat exchangers 17 in a wind tunnel 16. On the other hand, the cylindrical cathodes 19 are arranged at the upper stream side of the gas flow of the discharge excitation section 14 and the tabular anodes 20 divided into multiple sections are disposed at the lower stream side branched in the electrodes for discharge excitation. The gas collision section 21 takes ridge section form with guide inclined planes at the branching side, and the gas flow is branched in T shape between both electrodes when excitation electric input is applied to the cathodes 19 for discharge excitation and the anodes 20. Accordingly, a discharge section A has an extent shown in dotted lines, and discharge excitation volume required can be obtained in short effective discharge length. |
