JPS6449374U - - Google Patents

Info

Publication number

JPS6449374U

JPS6449374U JP14287787U JP14287787U JPS6449374U JP S6449374 U JPS6449374 U JP S6449374U JP 14287787 U JP14287787 U JP 14287787U JP 14287787 U JP14287787 U JP 14287787U JP S6449374 U JPS6449374 U JP S6449374U

Authority

JP

Japan

Prior art keywords

groove

welding torch

width direction

optical sensors

voltage difference

Prior art date

1987-09-18

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Pending

Links

• Espacenet
• Global Dossier
• Discuss

• 238000003466 welding Methods 0.000 claims description 6
• 230000003287 optical effect Effects 0.000 claims 2
• 238000010586 diagram Methods 0.000 description 4
• 238000005259 measurement Methods 0.000 description 1
• 238000000034 method Methods 0.000 description 1
• 238000011017 operating method Methods 0.000 description 1

Cited By (1)