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KA

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Description

The KA strain gauge is a strain gauge designed with for Torsion applications. The pattern and base are circular and concentric featuring a full Wheatstone bridge strain gauge configuration

Features

  • Constantan grid material
  • Phenolic base material
  • Polyimide base material (Optional for High Temperature Environments)
  • Wire pre-bonded (Optional)

Applications

  • Stress analysis
  • Transducer construction: Torque Sensors

Specifications

Parameters BF Series BF Series BA Series
Backing material Phenolic Modified phenolic Polyimide
Grid material Constantan Karma Constantan/Karma
Typical resistance 120/350/1000 350 /1000/2000 350 / 1000
Average resistance tolerance ≤ ±0.1%
Typical sensitivity 2.00~2.20 1.80~2.20 1.86~2.20
Sensitivity coefficient dispersion ≤ ±0.1%
Strain limit 2%
Fatigue life ≥ 107(±1000)
Operating temp. range -30~+80⁰C -30~+80⁰C -50~+50⁰C
Temp. self-compensation coefficient 9, 11,16,23,27

Grid Sizes

Type Model Grid Size
Dia (mm)		 Base Size
Dia (mm)
KA B*350-5KA(**)B*-F*-X 4.9 5.3
B*350-6KA(**)B*-F*-X 5.7 6.0
B*350-6KA(**)B*-F*-X 6.0 10.2
B*350-8KA(**)B*-F*-X 7.6 8.0
B*350-9KA(**)B*-F*-X 9.4 10.0
B*350-10KA(**)B*-F*-X 9.6 10.0
B*350-12KA(**)B*-F*-X 11.9 12.8
B*350-13KA(**)B*-F*-X 12.6 13.0
B*350-14KA(**)B*-F*-X 12.8 14.0
B*350-15KA(**)B*-F*-X 14.3 15.0
B*350-20KA(**)B*-F*-X 18.8 20.0
B*1000-6KA(**)B*-F*-X 6.7 10.2
B*1000-8KA(**)B*-F*-X 7.6 8.0
B*1000-10KA(**)B*-F*-X 9.7 10.2
B*1000-13KA(**)B*-F*-X 12.6 13.2
B*1000-14KA(**)B*-F*-X 13.4 14.0
B*1000-15KA(**)B*-F*-X 14.6 15.0
B*1000-20KA(**)B*-F*-X 19.2 20.0
B*1500-10KA(**)B*-F*-X 9.6 10.2
B*2000-14KA(**)B*-F*-X 13.9 14.4

Material Properties

Type Model Grid Material Creep
KA B*350-5KA(**)B*-F*-X Constantan B0,B8
B*350-6KA(**)B*-F*-X B0,B8
B*350-6KA(**)B*-F*-X B0,B8
B*350-8KA(**)B*-F*-X B8
B*350-9KA(**)B*-F*-X B0,B8
B*350-10KA(**)B*-F*-X B0
B*350-12KA(**)B*-F*-X B0,B8
B*350-13KA(**)B*-F*-X B0,B8
B*350-14KA(**)B*-F*-X B0,B8
B*350-15KA(**)B*-F*-X B0,B8
B*350-20KA(**)B*-F*-X B0,B8
B*1000-6KA(**)B*-F*-X B0,B8
B*1000-8KA(**)B*-F*-X B0,B8
B*1000-10KA(**)B*-F*-X B8
B*1000-13KA(**)B*-F*-X B0,B8
B*1000-14KA(**)B*-F*-X B0,B8
B*1000-15KA(**)B*-F*-X B0,B8
B*1000-20KA(**)B*-F*-X B0,B8
B*1500-10KA(**)B*-F*-X B0,B8
B*2000-14KA(**)B*-F*-X B0,B8

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