Hello . I have a strain gauge rosette setup. I have a doubt on conversion of output voltages from 3 grids to 3 Strains.
This pic has the reduction formula and angle to Principal axis formula for 0,60,120 rosette. [IMG]http://i.imgur.com/xOHvTvw.png[/IMG]
Should I have to take the strain values in this formula with negative sign for compressive, and positive sign for tensile? Or should I just take the value alone without sign?
Thanks.
