Apparatus for detecting a shape of a groove

Details Apparatus for detecting a shape of a groove Apparatus for detecting a shape of a groove

1988-09-01

1991-01-29

Evans, F. L.

Optics: measuring and testing

By polarized light examination

With light attenuation

21912434, 358101, 358107, G01B 1124

Patent

active

049882015

ABSTRACT:
An apparatus for detecting a shape of a groove, comprises: a device for forming picture images of a groove and a groove face of a work piece of metal to be welded with the use of a welding arc as illuminating light; a storage device for storing information on picture elements of the picture images formed by the device for forming picture images; an integrating device for integrating the information of the picture elements stored in the storage device in a predetermined direction of a memory in the storage device; a differentiating device for differentiating the integrated information in the direction rectangular to the predetermined direction of the memory; and a detecting device for detecting information of shapes of the groove and the groove face on the basis of the differentiated information on the picture elements. The apparatus for detecting a shape of a groove is provided with a processing device which processes command values of welding current and of a welding speed on the basis of information on shapes of the groove and the groove face. The device for forming an image is provided with an air nozzle open toward an image forming area.

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