| 摘要 |
<p>A method for monitoring welding of a workpiece (16) includes selecting light of a predetermined wavelength from that emitted by plasma produced by the welding process, generating signals indicative of the selected light's intensity, and correlating those signals with the cross-sectional area of the weld. An apparatus (18) for monitoring welding of a workpiece (16) includes a filter for passing selected light of a predetermined wavelength emitted by plasma, a signal generator which produces signals indicative of the intensity of the selected light, and means (24) for correlating the signals with the weld's cross-sectional area.</p> |
