| 摘要 |
PURPOSE: A welding inspection apparatus is provided to measure the resistance of a welded part and a non welded part together by 6 electrode pins which have a fixed interval. CONSTITUTION: A welding inspection apparatus comprises: a first electrode pin(12), a second electrode pin(13), a third electrode pin(14), a fourth electrode pin(15), a fifth electrode pin(16), and a sixth electrode pin(17) which are linearly arranged in a fixed interval on the surface of a measured object with contacting to the end; a current source(30) which induces current between each electrode pins; a first voltage meter(22) which measures voltage between the second electrode pin and the third electrode pin; a second voltage meter(24) which measures voltage between the forth electrode pin and the fifth electrode pin; a first switch(42) which selectively interlinks one end of the current source to one among the first electrode pin and the third electrode pin; and a second switch(44) which selectively interlinks the other end of the current source to one among the third electrode pin and the fourth electrode pin.
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