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Volume 25 Issue 3
Sep.  2013
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Citation:
shu

Feedback control of laser welding diamond saw by acoustic signals

  • 1.

    Department of Electrical Engineering and Automation, Huaqiao University, Quanzhou, 362011

  • Received Date: 2000-03-31
    Accepted Date: 2000-07-03
  • The distinctive acoustic signal emitted by plasma while laser welding diamond saw is regarded as a signal which is produced when a carrier wave with frequency of 16kHz is modulated with a periodical signal with frequency of 300Hz.A method to obtain the diagnostic signal, the acoustic feedback control system and the principle of laser welding diamond saw are described in the paper.Experimental results prove that in terms of welding qualities, acoustic feedback method is better than ordinary laser welding method.
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  • [1] 朱海红,唐霞辉,朱国富,激光技术,1998;22(5):273～275
    [2] 史小强,李力均.中国激光,1999;A26(4):379～383
    [3] 夏锦华,殷声,叶宏煜 et al.激光技术,1999;23(4):248～251
    [4] 骆红,胡伦骥,胡席远 et al.中国激光,1998;A25(6):570～572
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Feedback control of laser welding diamond saw by acoustic signals

  • 1. Department of Electrical Engineering and Automation, Huaqiao University, Quanzhou, 362011
  • Received Date: 2000-03-31
  • Accepted Date: 2000-07-03
  • Available Online: 2001-05-25

Abstract: The distinctive acoustic signal emitted by plasma while laser welding diamond saw is regarded as a signal which is produced when a carrier wave with frequency of 16kHz is modulated with a periodical signal with frequency of 300Hz.A method to obtain the diagnostic signal, the acoustic feedback control system and the principle of laser welding diamond saw are described in the paper.Experimental results prove that in terms of welding qualities, acoustic feedback method is better than ordinary laser welding method.

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