Low Cost Autonomous Coating Condition Monitoring System

Tanks and enclosures were named the top corrosion expense on Navy vessels, accounting for $204 M in annual direct costs. To control these costs, there is a need for an automated monitoring system to assess coating damage and cathodic protection (CP) system performance. During the Phase II program, Luna proposes to complete a prototype coating condition monitoring system (CCMS) suitable for submarine applications. The CCMS will be designed for manufacturability and ease of installation, and will provide reliable, long service life operation at a low cost. The health monitoring system will output a direct pass/fail measurement of coating damage, damage location, estimated remaining service life, and CP system condition. The monitoring system will be based on Lunas product line of ultralow power sensor systems used for asset monitoring and equipment diagnostics. These devices have embedded processors with diagnostic firmware that translates sensor data into quantitative actionable information for maintainers. The monitoring system will be developed using physical scale tank models and then demonstrated in full scale seawater ballast tanks at a Navy laboratory.