Journal Article トンネル覆工コンクリート検査に向けたレーザー打音検査用小型高出力高繰り返しレーザー装置の開発

岡田, 大  ,  長谷川, 登  ,  三上, 勝大  ,  近藤, 修司  ,  錦野, 将元  ,  河内, 哲哉

45 ( 7 )  , pp.427 - 432 , 2017-07 , 一般社団法人レーザー学会
We have developed the flash lamp pumped Nd:YAG laser with 2 J, 50 Hz for the laser hammering test that inspects a tunnel lining concrete. A simple and compact laser system that thermal lens effect was compensated by an adjustment of image tube had a high impact resistance and stability. As the result of the outdoor practical-test in 1.5 month, this laser system was shown to be available for a maintenance-free operation.

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