Ultra high-elongation Foil Strain Gages
KFEM series ultrahigh-elongation foil gages can measure strain in elastic to plastic region on structures and are suitable for large strain measurement or rupture tests of metals (Steel, stainless steel, aluminum) and plastics (Polyethylene, polypropylene).
• Measurement of 20% to 30% material deformation possible
• Laminate protruded 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.
|Materials Resistive element||CuNi alloy foil|
|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 cable: -10 to 80ºC
Vinyl-coated flat cable (L-6, L-7): -10 to 80ºC
|Applicable linear expansion coefficients (×10-6/℃)||-|
|Strain limits at normal temp. (approx. %)||20 to 30|
|Fatigue lives at normal temp. (times)||-|
Besides the silver-clad copper lead wire, KFEM 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.
KFEM-5-120-C1 suffixes L3M2R for the gage with a 3 m long vinyl-coated flat 2-wire cable becomes
For details, please refer to the [Strain Gages with Pre-attached Lead Cables]