簡介
KFV
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.
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| Materials Resistive element | Special 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) | ー |
| Applicable linear expansion coefficients (×10-6/℃) | ー |
| Strain limits at normal temp. (approx. %) | ー |
| Fatigue lives at normal temp. (times) | ー |