An inspection is, most generally, an organized examination or formal evaluation exercise. In engineering activities inspection involves the measurements, tests, and gauges applied to certain character
Maintenance check of electronic equipment on a U.S. Navy aircraft
An Oregon Air National Guardsman makes an inspection of a radio-tower.
Calipers or callipers are an instrument used to measure the linear dimensions of an object or hole; namely, the length, width, thickness, diameter or depth of an object or hole. The word caliper comes
Inspection
…to determine whether is the requirements are met for each characteristic. Common examples of inspection by measurement or gauging include using a caliper or micrometer to determine if a dimension of a manufactured part is within the dimensional tolerance specified in a drawing for that part, and is thus…
A vernier caliper clamping on an object
A bronze sliding pinch scale (collected by the Yangzhou Museum) excavated from the tombs belonging to the Eastern Han dynasty (Gansenshan tombs in Hanjiang District, Yangzhou City)