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GG.aln Strain Gages Strain △ Strain gages measure strain differential displacement over a finite area via a change in electrical resistance R=lp[Q2 Current Nominal length io: I( With applied strain: I (+△)p implementation Wheatstone bridge iaY ni balance circuit bond to test article strain gages feature polyimide-encapsulated GND constantan grids with V+ copper-coated solder tabs Mfg Ref:http://www.measurementsgroup.com 16.810(16682) assachusetts Institute of Technology Ui6WUDLQ*DJHV 6WUDLQ ∆O 6WUDLQJDJHVPHDVXUHVWUDLQ GLIIHUHQWLDO GLVSODFHPHQW RYHUDILQLWHDUHDYLDD ε = FKDQJHLQHOHFWULFDOUHVLVWDQFH5 Oρ >Ω@ OR &XUUHQW1RPLQDOOHQJWKO  , = 9LQ R R ORρ OR :LWKDSSOLHGVWUDLQ ,ε = 9LQ OR + ∆O ρ ,PSOHPHQWDWLRQ :KHDWVWRQHEULGJH FLUFXLW ERQGWRWHVW VWUDLQJDJHVIHDWXUH DUWLFOH SRO\LPLGHHQFDSVXODWHG *1' FRQVWDQWDQJULGVZLWK FRSSHUFRDWHGVROGHUWDEV 9 0IJ 5HIKWWSZZZPHDVXUHPHQWVJURXSFRP   
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