Corrosion can cause serious damage, which leads to large economic loss, sometimes combined with environmental pollution, or risk of personnel injuries. Today, corrosion has a far-reaching impact on society and the associated degradation of materials, owing to the increased complexity and diversity of materials systems, which comprise not only metallic materials but also ceramics, polymers, and composites, all of which are vulnerable to environmental extremes. Early detection, proper diagnosis, and efficient prevention measures are the most essential parts in preventing or limiting the scope of such damages. Corrosion detection (inspection and monitoring) provides assistance and knowledge to identify the problem, examine the performance of the material, alternate materials evaluation, and development of strategies for materials protection towards a specific environment. Significantly, these sensor detection techniques are useful to determine the average rate of corrosion or type of attack, or both, that arise during the exposure. The data obtained from these sensors can allow providing an early warning, resulting in corrosion-induced failure and producing controlling statistics concerning maintenance necessities and ongoing conditions of the system that gets detected. In this review, sensors implementing both physical and electrochemical techniques with respect to the recent developments in the field and laboratory are discussed towards sensitivity and selectivity along with their advantages and disadvantages. In addition, various standard methods developed for inspecting and monitoring the corrosion directly or indirectly are also described in detail.

腐蚀会造成严重的破坏，从而导致巨大的经济损失，有时还伴有环境污染或人员受伤的风险。今天，由于材料系统的复杂性和多样性增加，腐蚀对社会和相关的材料降解产生了深远的影响，这些系统不仅包括金属材料，还包括陶瓷、聚合物和复合材料，所有这些都容易受到腐蚀。环境极端。早期发现、正确诊断和有效的预防措施是防止或限制此类损害范围的最重要部分。腐蚀检测（检查和监测）提供帮助和知识来识别问题、检查材料的性能、替代材料评估、针对特定环境制定材料保护策略。重要的是，这些传感器检测技术可用于确定暴露期间出现的平均腐蚀速率或侵蚀类型，或两者兼而有之。从这些传感器获得的数据可以提供早期警告，导致腐蚀引起的故障，并生成有关维护必要性和被检测到的系统持续状况的控制统计数据。在这篇综述中，针对该领域和实验室的最新发展，采用物理和电化学技术的传感器讨论了灵敏度和选择性以及它们的优缺点。此外，