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Strain Gauge

 
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May15-09, 11:50 AM   #1
 

Strain Gauge


A strain gauge has a unstrained resistance of 120 ohms, guage factor of 2.0 is connected to steel girder so it experieces tensile stress. If strained resistance of gauge is 120.13 ohm. How do i calculate the tensile stress value?

I have looked all over the internet for equations relating but have not succeded, any help would be great
 
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May16-09, 07:12 AM   #2
 
If you look at the link it might help ....

http://en.wikipedia.org/wiki/Strain_gauge
 
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