Strain Gage Options
photos courtesy of Measurements Group

Uniaxial Gages

• single grid
• for measuring strain in the grid direction

 

Wire Strain Gage - no longer produced

 

Foil Strain Gage

 

Gage Lengths

• range from 0.008" to 4" (0.20 mm to 101.6 mm).

 

Biaxial ("Tee") Rosettes

• two perpendicular grids
• to determine principal strains when their directions are known

 

Two-Element "Planar" Rosettes

 

Two-Element "Stacked" Rosettes

 

Three-Element Rosettes

• three independent grids
• for ascertaining the principal strains and their directions

 

Three-Element "Rectangular" Rosettes

• 0, 45, 90 degree grid angles

 

Three-Element "Delta" Rosettes

• 0, 60, 120 degree grid angles

 

Shear Gages

for direct indication of shear strains

 

Embedment Strain Gages

 

Strip (Chain) Gages

for strain-gradient investigation

 

Residual Stress Gages

 

Crack Detection Gages

 

Crack Propagation Gages