means for combining output signals generated by the collocated sensor and the nearly collocated sensor, to generate a composite signal for coupling to the actuator means, the composite signal being representative of {HEAD ~ the average strain} in {TAIL ~ the structural member} 
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means for combining output signals generated by the collocated sensor and the nearly collocated sensor , to generate a composite signal for coupling to the actuator means , the composite signal being representative of { HEAD ~ the average strain } in { TAIL ~ the structural member }
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