This paper describes an experimental study relating force and strain calculations to a physical measurement. Using a strain gage, a laboratory set up detects microStrains in a cantilever beam. The strain gage is connected to a cantilever beam whose lead wires are configured in a quarter Wheatstone bridge. LabView, a user interface program, is used to translate changes in wire resistance on the strain gage into a numerical value, in microStrains. This laboratory experiment is intended for students to physically and visually understand how force relates to strain.
Worcester Polytechnic Institute
Major Qualifying Project
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