Abstract

At present, long-term flight of carrier-based aircraft and other naval aviation equipment in high-salt, high-humidity environments will be subject to various environmental corrosion. The traditional means of monitoring aircraft corrosion is to seal water and prevent periodic inspections. The two monitoring methods are inefficient, and it is not easy to find the corrosion condition in the early stage of corrosion. When the corrosion really occurs, it will seriously threaten the safe flight of the aircraft and the safety of the pilot. Therefore, there is a need to develop an on-line monitoring sensor device for aircraft corrosion conditions to carry out real-time monitoring of aircraft acid-base corrosion (pH) conditions in high-salt, high-humidity marine environments. This paper mainly studies the application of carbon-based nanomaterials in acid-base sensors. In this paper, the acid-base sensor potential values at the same pH value are changed back and forth. In the initial state, the acid-base sensor potential values corresponding to pH = 3 are 385, 386, 379, and 392 mV, respectively. After 1500 s, the potential values of the acid-base sensor were 384, 383, 377, and 390 mV, and the three-phase hysteresis potential of the acid-base sensor was 1, 3, 2, and 2 mV, indicating that the acid-base sensor produced a small hysteresis potential. However, the amount of sensor drift is within a controllable range, and the response time of the acid-base sensor is relatively short regardless of the solution with different pH values added dropwise from acid to alkali or from alkali to acid. Therefore, the acid-base sensor has good hysteresis and recyclability.

摘要

目前，舰载机等海军航空装备在高盐、高湿环境下长期飞行会受到各种环境腐蚀。监测飞机腐蚀的传统手段是封水和防止定期检查。两种监测方式效率低下，在腐蚀初期不易发现腐蚀情况。当腐蚀真正发生时，将严重威胁飞机的安全飞行和飞行员的安全。因此，需要开发一种飞行器腐蚀状况在线监测传感器装置，以在高盐、高湿海洋环境中对飞行器酸碱腐蚀（pH）条件进行实时监测。本文主要研究碳基纳米材料在酸碱传感器中的应用。本文中，相同pH值下的酸碱传感器电位值来回变化。在初始状态，pH = 3 对应的酸碱传感器电位值分别为 385、386、379 和 392 mV。1500 s后酸碱传感器电位值为384、383、377、390 mV，酸碱传感器三相迟滞电位分别为1、3、2、2 mV，说明酸碱传感器产生很小的滞后电位。但是，传感器漂移量在可控范围内，酸碱传感器的响应时间相对较短，无论从酸到碱或从碱到酸滴加不同pH值的溶液。所以，