In the dimensional metrology field, gage blocks are the universally used physical standards to which most linear dimensions are compared directly or indirectly. Prior to their existence, gage 'sticks' were used, each one being made to a specific dimension but the cost over time and their storage made them costly artifacts to use. Carl Johansson of Sweden realized these problems and developed a series of sizes that could be combined to form a near endless number of dimensions. Once a dimension was no longer needed, the pieces used to create it could be used in other combinations or 'buildups'-a considerable cost saving.
展开▼
