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    • 1. 发明公开
    • Galvanometer controller and laser machining apparatus
    • Vorrichtung zum Steuern eines Galvanometers und Laserschweissmachine
    • EP1238745A2
    • 2002-09-11
    • EP02004385.7
    • 2002-03-05
    • NEC CORPORATION
    • Iwase, KazuakiOkano, Akihiko
    • B23K26/04
    • G02B26/101B23K26/08B23K26/082
    • A galvanometer controller (16) capable of control with stability and with immunity to changes with time and variation in environment temperature and having improved operability and expandability, and a laser machining apparatus having the galvanometer controller (16). The galvanometer controller (16) comprises a correcting arrangement formed in a digital circuit (12), the correcting arrangement having a distortion correction section (9) for correcting a working distortion of an optical unit including a lens, an orthogonality correction section (10) for correcting the orthogonality between the two axes of the galvanometer, and a linearity correction section (11a,11b) for correcting the linearity on each of the two axes.
    • 一种能够稳定地控制并具有随时间变化和环境温度变化并具有改进的可操作性和可扩展性的电流计控制器(16),以及具有电流计控制器(16)的激光加工设备。 检流计控制器(16)包括形成在数字电路(12)中的校正装置,该校正装置具有用于校正包括透镜的光学单元的工作畸变的失真校正部分(9),正交校正部分(10) 用于校正电流计的两个轴之间的正交性;以及线性校正部(11a,11b),用于校正两个轴中的每一个上的线性。