Distributed Multi-parameter Sensors for Simultaneous Monitoring of Corrosion and Humidity: Optical Fiber Sensors and Surface Acoustic Wave Sensors

A sensor configuration system comprising:

• a plurality of devices sensing a first parameter;
• a plurality of devices sensing a second parameter optically communicating with the plurality of devices sensing a first parameter using a single optical fiber;
• and
• at least one interrogator device optically communicating with both the plurality of devices sensing the first parameter and the plurality of devices sensing the second parameter via the optical fiber and spatially resolving measurements along the optical fiber providing location information.

A sensor configuration system comprising:

• a plurality of humidity/water sensing elements;
• a plurality of corrosion sensing elements communicating with the plurality of humidity sensing elements using a single optical fiber, wherein the plurality of humidity/water sensing elements and the plurality of corrosion sensing elements are arranged in an alternating pattern along the single optical fiber;
• and
• a distributed optical fiber interrogator communicating with both the plurality of humidity/water sensing elements and the plurality of corrosion sensing elements via the single optical fiber, with amplification to enhance interrogation distance, which measures backscattered light power intensity changes and strain changes simultaneously and provides location information along the optical fiber.