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Foil Strain Gages for Plastics

Strain Gages

Foil Strain Gages for Plastics

Overview

The KFP series foil strain gages provide an applicable linear expansion coefficient of 65 x 10^-6/ºC, which makes them suitable for strain measurement of plastics such as acrylic resin.

Major Properties

Major Properties
Materials Resistive element	CuNi alloy foil
Materials Base	Polyimide
Operating temperature in combination with major adhesives after curing (°C)	CC-33A: -20 to 80ºC EP-34B: -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)	10 to 80ºC
Applicable linear expansion coefficients (×10^-6/℃)	65.0
Strain limits at normal temp. (approx. %)	3.0
Fatigue lives at normal temp. (times)	1x10^6 (±1500μm/m)

Contents

When ordering, suffix the lead-wire cable code to the model number with a space in between.

KFP-5-120-C1-65 with 3 polyester-coated copper wires 10 cm long pre-attached
→ KFP-5-120-C1-65 N10C3

If no lead-wire cable code is suffixed, the gage is delivered with gage leads only.
(Silver-covered copper wires 25 mm long)

Remarks

When bonding the KFP gage to difficult-to-bond material such as polyethylene with CC-33A, use the Surface Treatment Agent S-9B in combination.