Thermal imaging is a useful tool when monitoring wheel groups. The first image is of a partial deflation of an inside tyre, resulting in the outside tyre taking on more load there for is hotter, regardless whether it is a partial deflation on an inside or outside tyre, the outside tyre sidewall will always show an increase in temperate, either from load or deflection.
The middle image shows how a thermal camera can be used to identify components such as energised relays. This is useful when the electrical enclosure has no labelling.
The third images show’s how thermal imaging can quickly detect an non-functioning brake ( middle axle).