HPI waterproof rosette strain gages are designed with three active elements generally configured at 45° angles, but can be designed to customer specifications. In this configuration, three linearly independent strain measures are used to determine the three independent components of plane strain.
Our waterproof gages are specifically designed to evaluate and monitor live-load stresses for railroad, bridge, and other structural applications and are 100% full water immersion tested. Strain gage resistances offered are 120Ohms and 350ohms nominal.
The precision foil gage is bonded to a stainless steel shim, pre-wired and protected with a molded water-proofing material. The stainless steel shim permits easy field installation with any conventional capacitive discharge spot welder.
Instrumentation cable and wiring options can be customized to your specifications. Custom gage sizes and resistance are also available. Please see the table below for options.
Temperature Range: -50°F — 180°F (-45.5°C — 82°C)
Gage Factor (nominal): 2.0
Part Number
Gage Length
Lead Wire
Shim Length
Shim Width