HPI’s Chevron strain gages are designed with two active elements oriented at right angles (90°) to each other, bonded to a single shim. These gages are most popular for the ease and accuracy of Poisson’s Ratio measurements. (A material loaded in one direction will undergo strains perpendicular to the direction of the load as well as parallel to it. The ratio of the transverse strain to the longitudinal strain is called Poisson’s Ratio.)
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.
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 Resistance (Nominal)
Gage Factor (Nominal)
Gage Length
Lead Wire
Shim Length
Shim Width