SwRI: Corrosion--Time of Wetness Sensors, Corrosion Testing and Research, Sensors and Corrosion Monitoring

Two critical parameters that influence corrosion of engineered structures are the time of wetness where the structure is immersed or covered by an aqueous film and the corrosive character of the environment in contact with the structure. Engineers at Southwest Research Institute (SwRI) have developed sensors that are suited to detect and characterize the presence of a conductive electrolyte.

  • Sensors can be tailored to measure the presence of moisture such as precipitation, condensation or splash, which forms a conductive path between the sensor elements

  • By controlling electrode compensation, the corrosive nature of the environment can be characterized

  • The time of wetness can be determined by integrating the measured output

  • Various sensor element sizes can be produced

 

image of sensor output vs solution composition   image of sensor output vs solution composition

Sensor output vs solution composition

 

For more information about corrosion—time of wetness sensors capabilities at SwRI or how you can contract with SwRI, please contact Garth Tormoen at gtormoen@swri.org or (210) 522-2645, or Elizabeth Trillo, Ph.D., at etrillo@swri.org or (210) 522-4210.

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Southwest Research Institute® (SwRI®) is an independent, nonprofit, applied engineering and physical sciences research and development organization with 12 technical divisions using multidisciplinary approaches to problem solving. The Institute occupies more than 1,200 acres and provides nearly two million square feet of laboratories, test facilities, workshops, and offices for more than 3,300 employees who perform contract work for industry and government clients.