Alignment aid for an optical sensor system, e.g. for setting up optical barriers or for use with laser measurement systems, provides a three-stage acoustic output indicating the deviation of the alignment from the optimum

摘要

Alignment aid for an optical sensor system has at least two spatially separated system components (10, 12) that are to be aligned relative to each other or at least a system component that is to be aligned relative to a reference component. A measurement device is used to measure the alignment state. A three-stage acoustic signal is generated dependent on the alignment state and indicates the degree of deviation of the actual alignment state from an optimal alignment state.