GAS LASER APPARATUS AND MAGNETIC BEARING CONTROL METHOD

Number of patents in Portfolio can not be more than 2000

United States of America

APP PUB NO 20200025247A1
SERIAL NO

16568808

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A gas laser apparatus includes: a magnetic bearing including an electromagnet capable of controlling a magnetic force, and configured to rotatably support a rotary shaft of a fan in a magnetically levitated state by the magnetic force, the fan being configured to supply a laser gas; an electromagnet control unit configured to control the magnetic force of the electromagnet based on displacement of a levitated position of the rotary shaft and adjust the levitated position; a motor configured to generate torque for rotating the fan; a magnetic coupling configured to couple the rotary shaft and a drive shaft of a motor with a magnetic attractive force and transmit the torque of the motor to the rotary shaft; an attractive force estimating sensor configured to detect a parameter that enables an attractive force of the magnetic coupling to be estimated; an attractive force measuring unit configured to measure the attractive force of the magnetic coupling based on the detected parameter; and a correction unit configured to correct the magnetic force of the electromagnet according to a variation in the attractive force measured by the attractive force measuring unit.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • GIGAPHOTON INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
MIKI, Masaharu Oyama-shi, JP 9 94
WAKABAYASHI, Osamu Oyama-shi, JP 343 3052

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation