| 摘要 |
PURPOSE:To make the quick stopping and restart of a gas laser oscillator possible, and reduce its warming-up time, by applying an electric braking, such as the regenerative braking or the induction braking, at the stopping of a blower. CONSTITUTION:A blower 19a is driven by an inverter in order to circulate a lower pressure laser gas of about 1/20atom with high speed. When the blower 19a in such a gas laser oscillator 10 is required to be quickly stopped on account of abnormal discharge, etc. the so-called regenerative braking is applied wherein the rotation energy of the blower 19a is fed back in the form of electric power to a power source by virtue of the effect that the blower 19a can operate as a generator. Thereby the blower 19a can be quickly stopped and warming-up time in the case of restart can be reduced. |
