고 입력임피던스를 적용한 배관부식상태 측정기의 개발 및 성능평가

It is mandatory to manage the cathodic protection (anti-corrosion) of gas facilities for protecting the corrosion of steel pipes under the ground or water. The voltage of cathodic protection is to maintain under a level of minus 850㎷. We developed a novel instrument to measure the protective potential at underground steel pipelines with 100㏁ input Impedance. We tested performance of a new detector and demonstrated better the results in comparison with other products.