KFU Series
High-temperature Foil Strain Gages (350ºC)

Summary

The base is made of highly heat-resistant polyimide and the gage element is made of NiCr alloy foil, thereby letting the KFU series gage exhibit superior characteristics over a wide temperature range.
*Please use KFU for short period testing.
E.g. 72 hours or less at 350 °C, 360 hours or less at 300 °C,
adhesive PI-32 (It changes depending on the condition.)

Click here for the [Strain Gages with Pre-attached Lead Cables]

Major Properties

Materials Resistive element NiCr alloy foil
Materials Base Polyimide
Operating temperature in combination with major adhesives after curing (°C) PI-32: -30 to 350ºC
Operating temperature in combination with major leadwire cables (°C) High/low-temperature 3-wire cable (L-17): -30 to 350ºC
Self-temperature-compensation (°C) 10 to 300ºC
Applicable linear expansion coefficients (×10-6/℃) 11, 16, 23
Strain limits at normal temp. (approx. %) 1.9
Fatigue lives at normal temp. (times) 1.5x105 (±1000μm/m, 300ºC)

Contents

Besides the advanced ribbon cable, KFU strain gages with pre-attached lead cables are available on request.
When ordering, please suffix the lead-wire cable code to the model number with a space in between.

e.g.
KFU-5-120-C1-11 suffixes H5M3 for the gage with a 5 m long high/low-temperature 3-wire cable becomes
KFU-5-120-C1-11 H5M3

For details, please refer to the [Strain Gages with Pre-attached Lead Cables]

Products table

All display

KFU120Ω Uniaxial

Model Dimensions (mm)
Gage(Grid) Base
Length Width Length Width
KFU-5-120-C1-11 5 2.5 10 3.7
KFU-5-120-C1-16 5 2.5 10 3.7
KFU-5-120-C1-23 5 2.5 10 3.7
KFU-2-120-C1-11 2 2.5 6 3.7
KFU-2-120-C1-16 2 2.5 6 3.7
KFU-2-120-C1-23 2 2.5 6 3.7

KFU350Ω Uniaxial

Model Dimensions (mm)
Gage(Grid) Base
Length Width Length Width
KFU-5-350-C1-11 5 2.4 10 3.7
KFU-5-350-C1-16 5 2.4 10 3.7
KFU-5-350-C1-23 5 2.4 10 3.7
KFU-2-350-C1-11 2 2.4 6 3.7
KFU-2-350-C1-16 2 2.4 6 3.7
KFU-2-350-C1-23 2 2.4 6 3.7

KFU120Ω Biaxial, 0°/90°stacked rosette

Model Dimensions (mm)
Gage(Grid) Base
Length Width Length Width
KFU-5-120-D16-11 5 1.4 φ11
KFU-5-120-D16-16 5 1.4 φ11
KFU-5-120-D16-23 5 1.4 φ11
KFU-2-120-D16-11 2 1.2 φ8
KFU-2-120-D16-16 2 1.2 φ8
KFU-2-120-D16-23 2 1.2 φ8

KFU350Ω Biaxial, 0°/90°stacked rosette

Model Dimensions (mm)
Gage(Grid) Base
Length Width Length Width
KFU-5-350-D16-11 5 2 φ11
KFU-5-350-D16-16 5 2 φ11
KFU-5-350-D16-23 5 2 φ11
KFU-2-350-D16-11 2 2 φ10
KFU-2-350-D16-16 2 2 φ10
KFU-2-350-D16-23 2 2 φ10

KFU120Ω Triaxial, 0°/45°/90°stacked rosette

Model Dimensions (mm)
Gage(Grid) Base
Length Width Length Width
KFU-5-120-D17-11 5 1.4 φ11
KFU-5-120-D17-16 5 1.4 φ11
KFU-5-120-D17-23 5 1.4 φ11
KFU-2-120-D17-11 2 1.2 φ8
KFU-2-120-D17-16 2 1.2 φ8
KFU-2-120-D17-23 2 1.2 φ8

KFU350Ω Triaxial, 0°/45°/90°stacked rosette

Model Dimensions (mm)
Gage(Grid) Base
Length Width Length Width
KFU-5-350-D17-11 5 2 φ11
KFU-5-350-D17-16 5 2 φ11
KFU-5-350-D17-23 5 2 φ11
KFU-2-350-D17-11 2 2 φ10
KFU-2-350-D17-16 2 2 φ10
KFU-2-350-D17-23 2 2 φ10

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To Ensure Safe Usage

The advance ribbon wire section is covered with the glass-cloth tape for reinforcement.

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