At the same time, the relationship between the magnetic flux leakage signals and the physical characters (including the width大黄毛片、depth and position) of the corrosions are studied. The results identify that, if the floor is saturated, the magnetic flux leakage intensity changes linearly with the changing of the corrosion diameter. When the corrosion is in the surface, the peak value of the signal is higher than it's in the back.

同時對缺陷直徑熟女性生活视频、深度以及處于底板上不同位置所產(chǎn)生的漏磁場信號差異進行研究，結果表明久久黄色一级视频丶一，在磁化飽和條件下男女一级做a爱过程免费视频，平底孔缺陷漏磁場信號峰峰值與孔深度呈線性關系，相同大小的缺陷處于底板下表面時檢測信號強度大于處于底板上表面時国产免费A∨片在线观看不卡。

When subjected to single action of bittern attack or combined actions of bittern attack and wetting-drying cycles, damage of OPC, APC, and HSC are mainly due to chemical corrosions, resulting in several attack products, and also due to crystallization of NaCl-KCl.

在正常溫度的單一腐蝕因素和等雙因素作用下欧美一级A片欧美黑人级别A片，OPC、APC和HSC的腐蝕破壞以形成多種腐東南大學博士學位論文蝕產(chǎn)物的化學腐蝕為主国产中文字幕乱人伦在线观看，NaCl-KCl物理結晶腐蝕為輔亚洲无码黄色网站。

And then, according to the above research, a portable instrument, based on PC-104 embedded technique, is designed for the inspection of the corrosions on oil storage tank floor. Some problems occurred during the testing, such as straightly walking在线观看欧美一级、turning and installing of the instrument are solved. At last, the instrument is applied in the storage tank of ZhenHai chemical plant. It shows that the portable MFL instrument can detect 4mm diameter、0.5mm deep hole in 6mm thick plate and 8mm diameter偷拍乱操视频、1.1mm deep hole in 12mm thick plate. The whole instrument is about 22kg heavy. The battery can keep on working for 6.5 hours. It is an efficient way for the testing of the corrosion on oil storage tank floor.

在上述實驗研究的基礎上野花社区大全免费观看3超碰，成功研制出一臺基于PC104的便攜式儲罐底板腐蝕漏磁檢測儀，解決了儀器使用過程中遇到的直線行走欧美三级欧美一级69、轉向和安裝困難等關鍵問題，并在中國石化鎮(zhèn)海煉化進行了應用欧美精品-精品国内自产拍在线，實驗室和現(xiàn)場試驗表明98精品视频在线，該便攜式儲罐底板腐蝕漏磁檢測儀能檢出6mm厚鋼板上φ4mm×0.5mm和12mm厚鋼板上φ8mm×0.5mm的腐蝕坑，整體重量22kg欧洲无码在线免费，電池能連續(xù)工作6.5小時亚洲婷婷五月天综合激情网，很好的解決了儲罐底板腐蝕的檢測問題。