天津大学学报（英文版）
天津大學學報（英文版）
천진대학학보（영문판）
TRANSACTIONS OF TIANJIN UNIVERSITY
2014年
2期
144-150
,共7页
李健%孔伟康%郑焕军%张力%毛雪伟
李健%孔偉康%鄭煥軍%張力%毛雪偉
리건%공위강%정환군%장력%모설위
corrosion monitoring%electrochemical noise test%4-channel
A portable 4-channel electrochemical noise (EN) test system with high precision was developed. The modular instrument cRIO was used as its core and the signal conditioning module included zero resistance ammeter (ZRA), fly line, screening box and shielded wire. The EN data were acquired from two Q235 carbon steel specimens placed in 0.5 mol/L H2SO4 solution and 0.1 mol/L NaCl solution. The experimental result shows that this system can achieve an accuracy of 10 pA and 10 μV, and it can be applied to on-site multi-channel EN test.
