High Endurance Strain Gauge

DSF series High Endurance Strain Gauge

These gauges are designed for fatigue tests, and can reach a fatigue life of over 10 million times at a strain level of ±3000 με. Compared to previously (1 million times at ±1500με), these are gauges of exceptionally high durability.
In aviation and other areas, repeated load tests of large elongation of composite materials are conducted. However, it had been necessary to adhere a new strain gauge frequently as a gauge reached its fatigue life. The DSF series greatly reduces time and cost of adhering gauges.

High Endurance Strain Gauge
Applicable specimen Metal, Composite materials
Operational temperature(°C) -60 to +200°C
Temperature compensation range(°C) -
Applicable adhesive CN, EB-2B, C-1
Backing Polyimide
Element Special alloy
Strain limit 1% (10000×10-6 strain)
Fatigue life at room temperature 1×107 (±3000×10-6 strain)

* Because this strain gauge is not self-temperature-compensated, it is recommended to preliminarily measure thermal output of this strain gauge using a dummy specimen which is made of the same material as the test specimen.

  • High Endurance Strain Gauge
    Gauge pattern Type Gauge
    length
    (mm)    		 Gauge
    width
    (mm)    		 Backing
    length
    (mm)    		 Backing
    width
    (mm)    		 Resistance
    (Ω)    		 Gauge factor
    img_dsfla DSFLA-2-350 2 2 8 3.3 350 Approx. 3.5
    DSFLA-5-350 5 2 11 3.2 350 Approx. 3.5

  • Lead wires recommended for DSF series strain gauges (made-to-order)
    Purpose Lead wires Lead wire symbol Operating temperature range
    (℃ )    		 Gauge type exampled
    General measurement (no temperature change) 2-wire parallel vinyl wire LJC －20 to +80 DSFLA-2-350-3LJC
    General measurement 3-wire parallel vinyl wire LJCT －20 to +80 DSFLA-2-350-3LJCT
    Medium/high temperature 3-wire parallel special vinyl wire LXT －20 to +150 DSFLA-2-350-3LXT
    3-strand twisted FEP single-core wire 6FB♦LT －269 to +200 DSFLA-2-350-6FB3LT

    * “♦” indicates lead wire length

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Magnetic field strain gauge

MF series Magnetic field strain gauge

These non-inductive strain gauges are designed for strain measurement in magnetic fields. Two strain gauge elements are overlapped to cancel out electromagnetic induced noise occurring in the gauge, and the twisted lead wire also similarly works to cancel out induced noise. Their structure makes them less sensitive to induced noise from alternating fields.

Applicable specimen Metal, Concrete
Operational temperature(℃) MFLA:-20 to +80℃
Temperature compensation range(℃) -
Applicable adhesive CN, CN-E, RP-2
Backing MFLA:Special plastic
Element Ni-Cr
Strain limit 1% (10000 x 10-6 strain)
Fatigue life at room temperature 1 x 106 (±1500 x 10-6 strain)

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TML-NET Compatible Transducers

TML-NET Compatible Transducers

This is a strain gauge based transducer with a built-in network module. It is connected to a network driver NDR-100, and the NDR-100 is connected to a data logger for data transmission. Connection between the transducer and the NDR-100 is available using an exclusive two-core cable since the data transmission is made in degital form. Additional TML-NET compatible transducers can be cascaded using the two-core cable.

TMLNET transducer
Features
  • Built-in digital conversion module for TML-NET
  • Not influenced by lowering of insulation resistance and no sensitivity decrease
  • Easy wiring
  • Insulation check feature

System Block Diagram

TMLNET-transducer_e

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Low elastic strain gauge

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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