Products

GF series Low elastic strain gauge

f_list 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 ラ10-6 strain/ーC.
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.
Applicable
specimen
Plastics
Backing
Special plastics
Operational
temperature(°C)
-20 ~ +80°C
Element
Cu-Ni alloy foil
Temperature
compensation range(°C)
+10 ~ +80°C
Strain limit
3%
(30000×10-6 strain)
Applicable adhesive
CN
Fatigue life
at room temperature
1×106
(±1500×10-6 strain)

Detailed material

LOW ELASTIC MATERIALS - PLASTICS USE GOBLET

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-3-50
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 10 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.)
GFCA-3-50
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 15 350
45°/90°3-element Rosette
Plane type
(G.F. 2.1 approx.)
GFRA-3-50
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.

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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-3-50
GFLA-3-50
GFLA-3-70
3 2.3 9.5 4.0 120
GFLA-6-50
GFLA-6-70
6 2.5 14.0 5.0 120
GFLA-3-350-50
GFLA-3-350-70
3 2.9 10.0 5.0 350
GFLA-6-350-50
GFLA-6-350-70
6 2.7 15.0 5.0 350
90°2-element Rosette
Plane type
(G.F. 2.1 approx.)
GFCA-3-50
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 15.0 15.0 350
45°/90°3-element Rosette
Plane type
(G.F. 2.1 approx.)
GFRA-3-50
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 15.0 15.0 350
50:Epoxy resin
70:Acrylic resin, ABS resin
Each package contains 10 gauges.

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

Lead wires
Operational
temperature
range
Gauge type
exampled
Colors of Lead wire
2-wire Parallel
vinyl wire
-20 ~ +80°C
GFLA-3-50-3LJC-F
Grey
3-wire Parallel
vinyl wire
-20 ~ +80°C
GFLA-3-50-3LJCT-F
Gray with blue stripe

Only the leadwires using lead-free solder are available for GOBLET strain gauges with CE marking.  Note that “-F” is appended to the type name of the leadwire using lead-free solder.

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