KFEL Series
High-elongation Foil Strain Gages
Summary
Developed to measure strain from elastic to plastic region on structures, the KFEL series foil gages allow the strain to be measured as large as 10% to 15% with simple tension strain.
Click here for the [Strain Gages with Pre-attached Lead Cables]
Major Properties
| Materials Resistive element | CuNi alloy foil |
|---|---|
| Materials Base | Polyimide |
| Operating temperature in combination with major adhesives after curing (°C) | CC-36: -10 to 80ºC |
| Operating temperature in combination with major leadwire cables (°C) | Polyester-coated copper wire: -10 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. %) | 15 |
| Fatigue lives at normal temp. (times) | 1x106 (±1500μm/m) |
Relative images
Contents
When ordering, suffix the lead-wire cable code to the model number with a space in between.
E.g.
KFEL-5-120-C1 with a vinyl-coated flat 2-wire cable 10 m long pre-attached
→ KFEL-5-120-C1 L10M2R
KFEL-5-120-D35 with a vinyl-coated flat 3-wire cable 5 m long pre-attached
→ KFEL-5-120-D35 L5M3S
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
KFEL 120Ω Uniaxial
10 gages/pkg
| Model | Dimensions (mm) | |||
|---|---|---|---|---|
| Gage(Grid) | Base | |||
| Length | Width | Length | Width | |
| KFEL-5-120-C1 | 5 | 2.1 | 11 | 3.5 |
| KFEL-2-120-C1 | 2 | 2.1 | 8 | 4 |
KFEL 120Ω Biaxial, 0°/90°
10 gages/pkg
| Model | Dimensions (mm) | |||
|---|---|---|---|---|
| Gage(Grid) | Base | |||
| Length | Width | Length | Width | |
| KFEL-5-120-D34 | 5 | 2.1 | 13 | 13 |
| KFEL-2-120-D34 | 2 | 2.1 | 10 | 10 |
KFEL 120Ω Triaxial 0°/90°/45°
10 gages/pkg
| Model | Dimensions (mm) | |||
|---|---|---|---|---|
| Gage(Grid) | Base | |||
| Length | Width | Length | Width | |
| KFEL-5-120-D35 | 5 | 2.1 | 13 | 13 |
| KFEL-2-120-D35 | 2 | 2.1 | 10 | 10 |
Remarks
Note:
Besides the usual surface treatment with sandpaper, the gage bonding surface should be treated with the surface treatment agent S-9B if the gage is bonded to non-adhesive plastics such as polyethylene and polypropylene.
Then, bond the gage using the adhesive CC-36.
For S-9B and bonding conditions for other special materials, contact us.
