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Small-sized Waterproof Foil Strain Gages
Overview
The KFWS series foil strain gages are small-sized waterproof gages suitable for outdoor or underwater strain measurement where gage bonding space is limited.
The waterproof resin is as thin as 1.3 mm, making them flexible enough to be bonded to a curved surface of 10 mm diameter.

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Technical Information
Major Properties
Materials Resistive element CuNi alloy foil
Materials Base Polyimide
Operating temperature in combination with major adhesives after curing (°C) CC-33A: -10 to 80ºC
EP-340: -10 to 80ºC
Operating temperature in combination with major leadwire cables (°C) Vinyl-coated flat cable (L-6, L-7): -10 to 80ºC
Self-temperature-compensation (°C) 10 to 80ºC
Applicable linear expansion coefficients (×10^-6/℃) 11, 16, 23
Strain limits at normal temp. (approx. %) 5.0
Fatigue lives at normal temp. (times) 3x10^4 (±1500μm/m)
Contents
When ordering, suffix the lead-wire cable code to the model number with a space in between.
KFWS-2N-120-C1-11 with a vinyl-coated flat 2-wire cable 3 m long
→ KFWS-2N-120-C1-11 L3M2R
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Brochure