Saudi Arabian Oil Company ;King Abdullah University of Science and Technology
发明人:
Amer Ayman,Shehri Ali,Parrott Brian
申请号：
US201715600317
公开号：
US2018335404(A1)
申请日:
2017.05.19
申请国别(地区):
美国
年份:
2018
代理人:
摘要：
Methods and systems for inspecting insulated equipment for corrosion under insulation are provided. The system includes an autonomous unmanned vehicle having aerial and ground locomotive capabilities. The vehicle includes an infrared detector and a pulsed eddy current sensor. In the method, infrared waves emitted from the equipment are detected along the equipment with the infrared detector. Using the infrared detector, at least one image of an inner surface of the equipment is developed based on the detected infrared waves. At least one area that is susceptible to corrosion is determined based on the at least one image. The susceptible area is inspected with the pulsed eddy current sensor, which induces an eddy current in the inner wall of the equipment. Based on a rate of the decay in strength of the eddy current, it is determined whether corrosion exists at the susceptible area using a processor configured by code.
