KFNB Non-inductive Foil Strain Gages

The gage element is made of a special alloy which provides less magnetoresistant effect; also, the shape is designed to eliminate induction. Thus, the KFNB series foil strain gages allow the strain to be measured accurately under AC magnetic environments.

Description

Major Properties
Materials Resistive element NiCr alloy foil
Materials Base Polyimide
Operating temperature in combination with major adhesives after curing (°C) PC-600: -196 to 150ºC
CC-33A: -196 to 120ºC
Operating temperature in combination with major leadwire cables (°C) Vinyl-coated normal-temperature low-noise 3-wire cable (L-13): -10 to 80ºC
Self-temperature-compensation (°C) 0 to 150ºC
Applicable linear expansion coefficients (×10-6/℃) 11, 16, 23
Strain limits at normal temp. (approx. %) 1.0
Fatigue lives at normal temp. (times) 1×104 (±1500μm/m)
Types, lengths and codes of lead-wire cables pre-attached to KFNB
Model Vinyl-coated normal-temperature low-noise 3-wire cable
Gage Pattern C9, D20
15 cm J15C3
30 cm J30C3
1 m J1M3
3 m J3M3
5 m J5M3
Operating Temperature -10 to 80°C
Remarks L-13

*For other lead-wire cable lengths, contact us.

Contents

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

E.g.
KFNB-5-350-C9-11 with a vinyl-coated normal-temperature low-noise 3-wire cable 5 m long pre-attached
→ KFNB-5-350-C9-11 J5M3

If no lead-wire cable code is suffixed, the gage is delivered with 2 polyester-coated copper wires 10 cm long each.