Laser oscillator provided with blower
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United States of America Patent
Stats
-
Aug 16, 2016
Grant Date -
Nov 26, 2015
app pub date -
May 19, 2015
filing date -
May 23, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A laser oscillator which can estimate the rotation speed of a blower in an idle state at cheaper cost and higher precision. The laser oscillator is comprised of a resonator part, laser medium flow path, blower, drive part, controller, manometer which measures the pressure of the laser medium at a predetermined position of the laser medium flow path, and rotation speed estimating part which uses the pressure of the laser medium which is measured by the manometer and a predetermined relationship between the pressure of the laser medium and the blower rotation speed at a certain position as the basis to estimate the rotation speed of the blower. The controller controls the drive part so as to restart operation of the blower at the rotation speed which is estimated by the rotation speed estimating part when the power supply to the blower is stopped and the blower is idling.
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