ACOUSTIC-SIGNALS FROM LASER BACK REFLECTIONS

被引:8
|
作者
WEERASINGHE, VM
KAMALU, JN
HIBBERD, RD
STEEN, WM
机构
[1] UNIV DUNDEE,DUNDEE DD1 4HN,SCOTLAND
[2] IMPERIAL COLL SCI TECHNOL & MED,CTR ROBOT & AUTOMATED SYST,LONDON,ENGLAND
[3] UNIV LIVERPOOL,LIVERPOOL L69 3BX,ENGLAND
来源
OPTICS AND LASER TECHNOLOGY | 1990年 / 22卷 / 06期
关键词
defects; laser welding; stress waves; weld monitoring;
D O I
10.1016/0030-3992(90)90091-H
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
An acoustic technique is described to detect laser weld defects. The acoustic signal is compared with signals from a number of other sensors. The feasibility of using the acoustic signal in a real-time knowledge-based system for the control and monitoring of laser welding is shown. © 1990.
引用
收藏
页码:381 / 386
页数:6
相关论文
共 50 条
  • [1] ACOUSTIC-SIGNALS FROM AN EXTENDED LASER-BEAM IN WATER
    MALBROUGH, DJ
    HUNTER, SD
    JONES, WV
    BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1980, 25 (04): : 547 - 547
  • [2] ACOUSTIC-SIGNALS FROM LASER-ANNEALED AMORPHOUS-SILICON
    BALTZER, N
    VONALLMEN, M
    SIGRIST, MW
    APPLIED PHYSICS LETTERS, 1983, 43 (09) : 826 - 828
  • [3] LASER-GENERATED ACOUSTIC-SIGNALS - MECHANISMS AND APPLICATIONS
    SIGRIST, MW
    HELVETICA PHYSICA ACTA, 1982, 55 (02): : 184 - 186
  • [4] ATTENUATION OF LASER-GENERATED ACOUSTIC-SIGNALS IN LIQUIDS
    TERZIC, M
    INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1991, 5 (15): : 2563 - 2571
  • [5] ACOUSTIC-SIGNALS OF NARWHALS
    BOGORODSKII, VV
    LEBEDEV, GA
    SOVIET PHYSICS ACOUSTICS-USSR, 1978, 24 (06): : 471 - 475
  • [6] NONTHERMAL ACOUSTIC-SIGNALS FROM ABSORPTION OF A CYLINDRICAL LASER-BEAM IN WATER
    HUNTER, SD
    JONES, WV
    MALBROUGH, DJ
    JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1981, 69 (06): : 1563 - 1567
  • [7] ACOUSTIC-SIGNALS FROM SKELETAL-MUSCLE
    BARRY, DT
    NEWS IN PHYSIOLOGICAL SCIENCES, 1990, 5 : 17 - 21
  • [8] BACKSCATTER OF ACOUSTIC-SIGNALS FROM INHOMOGENEITIES IN COMPOSITES
    BUONCRISTIANI, AM
    SMITH, BT
    IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 1986, 33 (01) : 113 - 113
  • [9] DIVERSITY OF ACOUSTIC-SIGNALS IN LEPTODACTYLIDAE
    PENNA, M
    VELOSO, A
    ARCHIVOS DE BIOLOGIA Y MEDICINA EXPERIMENTALES, 1979, 12 (04): : 535 - 535
  • [10] AUDITORY REPRESENTATIONS OF ACOUSTIC-SIGNALS
    YANG, XW
    WANG, K
    SHAMMA, SA
    IEEE TRANSACTIONS ON INFORMATION THEORY, 1992, 38 (02) : 824 - 839