KFEM Series
Ultrahigh-elongation Foil Strain Gages

Summary
KFEM series ultrahigh-elongation foil gages allow strain to be measured on various regions of structures, from elastic to plastic, and are suitable for large strain measurement.
They can measure 20 to 30% of material deformation.
*Strain limit of 20% to 30% is ensured for simple tension applied to the gage bonded on stainless steel (SUS 304) or aluminum alloy (A1050) at normal temperature.
Click here for the [Strain Gages with Pre-attached Lead Cables]
Features
• Measurement of 20% to 30% material deformation possible
• Laminate protruding from the tip of gage base ensures improved adhesive property, making the gages hard to peel off.
• Foil material has an improved elongation property and is hard to disconnect.
Major Properties
Materials Resistive element | CuNi alloy foil |
---|---|
Materials Base | Polyimide |
Operating temperature in combination with major adhesives after curing (°C) | CC-36: -20 to 80ºC |
Operating temperature in combination with major leadwire cables (°C) | Polyester-coated copper wire: -20 to 80ºC Vinyl-coated flat cable (L-6, L-7): -10 to 80ºC |
Self-temperature-compensation (°C) | ー |
Applicable linear expansion coefficients (×10-6/℃) | ー |
Strain limits at normal temp. (approx. %) | 20 to 30 |
Fatigue lives at normal temp. (times) | ー |
Relative images

Contents
When ordering, suffix the lead-wire cable code to the model number with a space in between.
E.g.
KFEM-5-120-C1 with a vinyl-coated flat 2-wire cable 10 m long pre-attached
→ KFEM-5-120-C1 L10M2R
If no lead-wire cable code is suffixed, the gage is delivered with gage leads only.
(Silver-covered copper wires 25 mm long)
For details, please refer to the [Strain Gages with Pre-attached Lead Cables]
Products table
All display
KFEM 120Ω Uniaxial

10 gages/pkg
Model | Dimensions (mm) | |||
---|---|---|---|---|
Gage(Grid) | Base | |||
Length | Width | Length | Width | |
KFEM-10-120-C1 | 10.0 | 2.5 | 17.5 | 4.5 |
KFEM-5-120-C1 | 5.0 | 1.5 | 11.5 | 3.0 |
KFEM-2-120-C1 | 2.0 | 1.5 | 8.5 | 3.0 |
KFEM-1-120-C1 | 1.0 | 1.3 | 7.0 | 2.5 |