Foil Strain Gage for Hydrogen Gas Environment

  • RoHS



KFV is a foil strain gage that enables stable strain measurement under high-pressure hydrogen gas environments.


The metal foil of conventional foil strain gages has the electric resistance changed by receiving hydrogen effect, thereby disabling stable strain measurement.
KFV strain gage receives less electric resistance change due to hydrogen, thereby enabling stable strain measurement.

Major Properties

Materials Resistive element Fe-Cr alloy foil
Materials Base Polyimide
Operating temperature in combination with major adhesives after curing (°C) PC-600: -30 to 80ºC
Operating temperature in combination with major leadwire cables (°C) Polyester-coated copper wire: -30 to 80ºC
Self-temperature-compensation (°C)
Applicable linear expansion coefficients (×10-6/℃)
Strain limits at normal temp. (approx. %)
Fatigue lives at normal temp. (times)

Products table

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KFV 350Ω Uniaxial

  • RoHS

2 gages/pkg

Model Dimensions (mm)
Gage(Grid) Base
Length Width Length Width
KFV-2-350-C1 2 3.2 6 5

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To Ensure Safe Usage

Before using KFV strain gages, request the leaflet and read thoroughly the Safety Precautions described there.