Apparatus for Measuring Stresses on Rotating Blades and Methods Thereof

摘要

A strain gauge apparatus for measuring stresses on a rotating blade includes a strain gauge assembly, a shaft connectable to the rotating blade, a slip ring connected to the shaft, and a sleeve for covering lead wires routed along the shaft from the strain gauge and connected to the slip ring. The present invention also relates to a method of determining the fatigue life of a rotating blade.