Infrared thermography
, , , , , , and . "Rapid detection of defects in fuel-cell electrodes using infrared reactive-flow-through technique." Journal of Power Sources 261 (2014) 401–411.
, , , , , , and . "Applying infrared thermography as a quality-control tool for the rapid detection of polymer-electrolyte-membrane-fuel-cell catalyst-layer-thickness variations." Journal of Power Sources 211 (2012) 4–11.