A directional sensor system that incorporates a single axis sensor element
that is manipulated to a plurality of orientations. The resulting
responses of the sensor element at these locations are combined to obtain
a measure of orientation of the system. The system applicable for
determining orientation of instrumentation within a well borehole such as
measurement-while-drilling, wireline and tubing conveyed borehole
instrumentation. The system can be used in other subsurface and surface
applications.