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| Automatic Monitoring Technology for Salt Spray Deposition Rate Based on Comb Shaped Electrodes |
| Received:July 17, 2024 Revised:August 12, 2024 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2024.11.018 |
| KeyWord:salt spray deposition rate comb shaped electrode AC impedance salt spray concentration real-time measurement temperature compensation |
| Author | Institution |
| CEN Yuanyao |
Equipment Environmental engineering Research Center,Southwest Institute of Technology and Engineering, Chongqing , China;Environmental Effects and Protection of Chongqing Key Laboratory, Chongqing , China |
| HE Qiongyao |
Equipment Environmental engineering Research Center,Southwest Institute of Technology and Engineering, Chongqing , China;Environmental Effects and Protection of Chongqing Key Laboratory, Chongqing , China;National Defense Science and Technology Industry Natural Environment Test and Research Center, Chongqing , China |
| WU Yao |
Equipment Environmental engineering Research Center,Southwest Institute of Technology and Engineering, Chongqing , China;Environmental Effects and Protection of Chongqing Key Laboratory, Chongqing , China |
| ZHAO Fangchao |
Equipment Environmental engineering Research Center,Southwest Institute of Technology and Engineering, Chongqing , China;Environmental Effects and Protection of Chongqing Key Laboratory, Chongqing , China;National Defense Science and Technology Industry Natural Environment Test and Research Center, Chongqing , China |
| CHEN Mingya |
Equipment Environmental engineering Research Center,Southwest Institute of Technology and Engineering, Chongqing , China |
| LIU Cong |
Equipment Environmental engineering Research Center,Southwest Institute of Technology and Engineering, Chongqing , China;Environmental Effects and Protection of Chongqing Key Laboratory, Chongqing , China;National Defense Science and Technology Industry Natural Environment Test and Research Center, Chongqing , China |
| ZHOU Kun |
Equipment Environmental engineering Research Center,Southwest Institute of Technology and Engineering, Chongqing , China;Environmental Effects and Protection of Chongqing Key Laboratory, Chongqing , China;National Defense Science and Technology Industry Natural Environment Test and Research Center, Chongqing , China |
| DENG Jiawei |
The Second Military Representative Office of the Army Equipment Department Stationed in Chongqing, Chongqing , China |
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| Abstract: |
| The work aims to study the automatic monitoring of salt spray deposition rate in atmospheric environment and microenvironment during equipment service, providing full-process salt spray data for corrosion damage research during equipment service. Through analysis, the wet candle method was used to capture atmospheric salt spray. The comb shaped electrodes were used as sensor probes, and the impedance value of the solution after changes in salt spray concentration was measured by the AC impedance method. After testing, the maximum error of the designed AC impedance measurement system was less than 5%. After measurement of salt spray solutions of different concentrations, a correlation model between concentration and impedance was obtained, with a correlation coefficient of R2=0.987 0. A temperature compensation model for salt spray concentration measurement was obtained aftermeasurement of solutions of different concentrations at 25 ℃.An outdoor real-time monitoring experiment was conducted at a certain location for one week, with a measured salt spray deposition rate of 0.04 mg/(100 cm2.d). At the same time, a comparative experiment was conducted by the gauze hanging method, leading to a result of 0.025 mg/(100 cm2.d). This technology can achieve automatic monitoring of salt spray deposition rate, and the monitoring data can be used for evaluating equipment status. |
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