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why dead weight tester called dead weight tester.
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Answer Posted / gayathri
A deadweight tester (DWT) is a calibration standard which uses a piston cylinder on which a load is placed to make an equilibrium with an applied pressure underneath the piston.
The formula to design a DWT is based basically is expressed as follows :
p = F / A [Pa]
where :
p : reference pressure [Pa]
F : forca applied on piston [N]
A : effective area PCU [m2]
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