High-elongation Foil Strain Gages
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.
|Materials Resistive element||CuNi alloy foil|
|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
|Applicable linear expansion coefficients (×10-6/℃)||ー|
|Strain limits at normal temp. (approx. %)||15|
|Fatigue lives at normal temp. (times)||1x106 (±1500μm/m)|
When ordering, suffix the lead-wire cable code to the model number with a space in between.
For the gage with a vinyl-coated ﬂat 2-wire cable 10 m long pre-attached
→ KFEL-5-120-C1 L10M2R
For the gage 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]
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.