GF series Low elastic strain gauge

These strain gauges are suited for the measurement on materials such as plastics, which have low elastic modulus compared to metals. The specially designed grid pattern reduces the stiffening effect of strain gauge on the specimen. This series is available with self-temperature-compensation for materials having coefficient of thermal expansion of 50 or 70 ×10-6 strain/℃.
New series of strain gauges named GOBLET are added to this series.  They are compliant with RoHS 2 Directive 2011/65/EU and supplied with CE marking.  Even though lead-free solder is used in the GOBLET gauges, they show better performance than conventional strain gauges owing to the adoption of unique gauge pattern.  Extension leadwires with CE marking are also available.

GF series Low elastic strain gauge
Applicable specimen Plastics
Operational temperature(℃) GF　－30 to +80℃
GF　－20 to +80℃
Temperature compensation range(℃) +10 to +80℃
Applicable adhesive CN
Backing Special plastics
Element Cu-Ni alloy foil
Strain limit 3% (30000 x 10-6 strain)
Fatigue life at room temperature 1 x 106 (±1500 x 10-6 strain)

  • LOW ELASTIC MATERIALS - PLASTICS USE GOBLET GOBLETCE_logo
    Gauge pattern Type Gauge
    length
    (mm)    		 Gauge
    width
    (mm)    		 Backing
    length
    (mm)    		 Backing
    width
    (mm)    		 Resistance
    (Ω) 

    Single-element
    (G.F. 2.1 approx.)

    gflab_350

    		 GFLAB-3-50
    GFLAB-3-70    		 3 2.3 9.5 4 120
    GFLAB-6-50
    GFLAB-6-70    		 6 2.5 14 5 120
    GFLAB-3-350-50
    GFLAB-3-350-70    		 3 2.9 9.5 5 350
    GFLAB-6-350-50
    GFLAB-6-350-70    		 6 2.7 14 5 350
    90°2-element Rosette
    Plane type
    (G.F. 2.1 approx.)
    gfcab_350    		 GFCAB-3-50
    GFCAB-3-70    		 3 1.4 10.5 10.5 120
    GFCAB-3-350-50
    GFCAB-3-350-70    		 3 2.9 14.5 14.5 350
    45°/90°3-element Rosette
    Plane type
    (G.F. 2.1 approx.)
    gfrab_350    		 GFRAB-3-50
    GFRAB-3-70    		 3 1.4 10.5 10.5 120
    GFRAB-3-350-50
    GFRAB-3-350-70    		 3 2.9 14.5 14.5 350

    50:Epoxy resin
    70:Acrylic resin, ABS resin
    Each package contains 10 gauges.

  • LOW ELASTIC MATERIALS - PLASTICS USE
    Gauge pattern Type Gauge
    length
    (mm)    		 Gauge
    width
    (mm)    		 Backing
    length
    (mm)    		 Backing
    width
    (mm)    		 Resistance
    (Ω)

    Single-element
    (G.F. 2.1 approx.)

    GFLA-3

    		 GFLA-3-50
    GFLA-3-70    		 3 2.3 9.5 4 120
    GFLA-6-50
    GFLA-6-70    		 6 2.5 14 5 120
    GFLA-3-350-50
    GFLA-3-350-70    		 3 2.9 10 5 350
    GFLA-6-350-50
    GFLA-6-350-70    		 6 2.7 15 5 350
    90°2-element Rosette
    Plane type
    (G.F. 2.1 approx.)
    GFCA-3    		 GFCA-3-50
    GFCA-3-70    		 3 1.4 10.5 10.5 120
    GFCA-3-350-50
    GFCA-3-350-70    		 3 2.9 15 15 350
    45°/90°3-element Rosette
    Plane type
    (G.F. 2.1 approx.)
    GFRA-3    		 GFRA-3-50
    GFRA-3-70    		 3 1.4 10.5 10.5 120
    GFRA-3-350-50
    GFRA-3-350-70    		 3 2.9 15 15 350

    50:Epoxy resin
    70:Acrylic resin, ABS resin
    Each package contains 10 gauges.

  • Leadwire-integrated GF series (made-to-order)

    Lead wires recommended for GF series strain gauges

    Purpose Lead wires Lead wire symbol Operating temperature range
    (℃ )    		 Gauge type exampled
    General measurement (no temperature change) 2-wire parallel vinyl wire LJC/LJC-F －20 to ＋80 GFLA-3-50-3LJC
    General measurement 3-wire parallel vinyl wire LJCT/LJCT-F －20 to ＋80 GFLA-3-50-3LJCT

    * Only lead wires using lead-free solder are available for GOBLET series strain gauges with the CE marking.

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