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Dynamic strain measurements<br />

! Standard ¼ bridge:<br />

! Sensitivity depends on cable length<br />

! No common mode rejection<br />

! Unbalanced constant current:<br />

! Sensitivity independent of cable<br />

length<br />

! No common mode rejection<br />

! Balanced constant current:<br />

! Sensitivity independent of cable<br />

length<br />

! High common mode rejection<br />

25 Aerospace Testing Expo 2005

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