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# fb11_10 - PROBLEM 11.10 KNOWN A steel membcr vp = 0-3...

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Unformatted text preview: PROBLEM 11.10 KNOWN: A steel membcr( vp = 0-3) subject to simple axial tension. Strain gauges are mounted on top center. and bottom center. CF = 2, All R's : 120 Q 51;:l0pVandEl =10 V.R—-120.Qand GF=2 FIND: Bn'dge constant, for gauge locations 1 and 4. Is the system temperature compensated? Determine the axial and transverse strains. SOLUTION: The conﬁguration is Since for any 4 gauges 550 OF E :7“; —82 +5. ~21) I and for a single gauge, sensing maximum strain 6&1: -95 E 4 In the present case both gauges sense the maximum strain, and the outputs are additive x=2 This installation is not temperature compensated. For the gauge. sensing maximum strain l 650’ _ stF E. 4+2£_,GF Thc actual output is then 5E%::K5£%’ and 3E; :5 V Solving for 8w yields em ~—1><IO'6 Them-fare: EM =8“ =1xlO" s, =O.3xlO*’ ll—ll ...
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fb11_10 - PROBLEM 11.10 KNOWN A steel membcr vp = 0-3...

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