The design of a Printed Circuit Board (PCB) can be very complex. Dutch embedded electronics specialist 3T sometimes develops PCBs that have more than 2,000 different components. But what if something is wrong with one of those components? How can you see tiny faults in PCB components of less than a millimeter that might be the cause for a bigger PCB failure? Very often, thermal imaging will be the answer. 3T has been using thermal imaging cameras for many years throughout its different activities to detect hot spots of less than 125 microns.
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Hope they have made sure the drone floats, should there be a system failure while in flight. And a rescue service to pick it up.