Steerable feeler head

摘要

The probe has a mobile unit (210) that turns around an axis (211). A resilient unit (215) maintains the mobile unit in a blocked position for restricting a movement of the mobile unit. Indexing units (217,256) define a number of predetermined and reproducible angular positions for the mobile unit. An actuator releases the mobile unit by shifting it in a direction of the axis for rotating the unit around the axis.