Linkage drive for pointer drive generates pointer motion on non-circular path; pointer motion within one revolution is non-uniform, resulting in unequal scale intervals, greater resolution

摘要

The drive is arranged before a pointer whose generated motion is on a non-circular path (1). The movement of the pointer within one revolution is non-uniform. In this way the divisions of a scale (2) with respect to the drive do not have equal intervals and hence offer greater resolution in measurement regions of interest