Composite Strain Gauge

UBF series Composite strain gauge CE

These are strain gauges developed for measurement on composite materials, and are designed with a proprietary special grid pattern to reduce the stiffening effect of the strain gauges. Owing to the development of gauge backing with better compliance, the number of repetitions in thermal cycling tests and creep characteristics have been significantly improved compared to conventional strain gauges (Tokyo Measuring Instruments Laboratory comparison). Optional (-F) lead-free solder specifications are also available.

UBF series Composite strain gauge
Applicable specimen Fiber Reinforced Plastics(FRP)
Operational temperature Static:-30 to +120 Ω
Dynamic:-30 to +150 Ω
Temperature compensation range -
Temperature compensation range EB-2, CN, NP-50B
Backing Polyimide-Amide
Element Cu-Ni
Strain limit 3% (30000 x 10-6 strain)
Fatigue life at room temperature 1×106 (±1500 x 10-6 strain)

  • Single-element
    Gauge pattern Type Gauge
    length
    (mm)    		 Gauge
    width
    (mm)    		 Backing
    length
    (mm)    		 Backing
    width
    (mm)    		 Resistance
    (Ω)
    img_ubf_01 UBFLA-03 0.3 1.9 3.4 2.5 120
    img_ubf_02 UBFLA-1 1 1.3 4.5 2 120

    * Optional -F availability (lead-free solder)
    Each package contains 10 gauges.

  • Lead wires recommended for UBF 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 LJB-F －20 to +80 UBFLA-1-3LJB
    2-strand twisted vinyl wire LH UBFLA-1-3LH
    General measurement 3-wire parallel vinyl wire LJBT/LJBT-F －20 to +80 UBFLA-1-3LJBT
    3-strand twisted vinyl wire (3-wire system) LHT UBFLA-1-3LHT
    Medium/high temperature 3-wire parallel special vinyl wire LXT/LXT-F －20 to +150 UBFLA-1-3LXT
    3-strand twisted FEP single-core wire 6FB♦LT －269 to +200 UBFLA-1-6FB3LT

    * "♦" indicates lead wire length

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BF series Composite strain gauge

BF series composite strain gauges are developed for measurement on composite materials, and are designed with a proprietary special grid pattern to reduce the stiffening effect of the strain gauges. Models are available for materials with coefficients of thermal expansion of 3 × 10-6/℃, 5 × 10-6/℃、8 × 10-6/℃ allowing use with ceramics, carbon, composite materials, etc. 
A new series of strain gauges bearing the CE mark, GOBLET, has been added. This CE-compliant series of products is compliant with RoHS directives. These gauges exceed the capabilities of conventional strain gauges with lead-free soldering as well as a unique tab design. CE-compliant extension lead wires are also available.

Applicable specimen Composite material
Operationaltemperature BF GOBLET ：-30 to +200 ℃
BF：-20 to ＋200 ℃
Temperature compensation range +10 to +80 ℃
Applicable adhesive CN, NP-50B, EB-2
Backing Polyimide
Element Cu-Ni
Strain limit 3% (30000 x 10-6 strain)
Fatigue life at room temperature 1 x 106 (±1500 x 10-6 strain)

  • COMPOSITE MATERIALS USE　goblet_log_sCE

    Single-element / Plane type two-element / Plane type three-element

    Single-element 

    Gauge pattern Type Gauge
    length
    (mm)    		 Gauge
    width
    (mm)    		 Backing
    length
    (mm)    		 Backing
    width    		 Resistance
    (Ω)
    bflab_28 BFLAB-2-3
    BFLAB-2-5
    BFLAB-2-8    		 2 0.9 7.6 2.5 120
    BFLAB-5-3
    BFLAB-5-5
    BFLAB-5-8    		 5 1.5 12.3 3.3 120

    Each package contains 10 gauges.
    * Attachment of lead wiring can be performed (made-to-order).

     

    Stacked-type two-element

    Gauge pattern Type Gauge
    length
    (mm)    		 Gauge
    width
    (mm)    		 Backing
    length
    (mm)    		 Backing
    width
    (mm)    		 Resistance
    (Ω)
    bfcab_28 BFCAB-2-3
    BFCAB-2-5
    BFCAB-2-8    		 2 1.3 8.0 8.0 120
    BFCAB-5-3
    BFCAB-5-5
    BFCAB-5-8    		 5 1.5 11.5 11.5 120

    Each package contains 10 gauges.
    * Attachment of lead wiring can be performed (made-to-order).

     

    Stacked-type three-element

    Gauge pattern Type Gauge
    length
    (mm)    		 Gauge
    width
    (mm)    		 Backing
    length
    (mm)    		 Backing
    width
    (mm)    		 Resistance
    (Ω)
    bfrab_28 BFRAB-2-3
    BFRAB-2-5
    BFRAB-2-8    		 2 1.3 8.0 8.0 120
    BFRAB-5-3
    BFRAB-5-5
    BFRAB-5-8    		 5 1.5 11.5 11.5 120

    Each package contains 10 gauges.
    * Attachment of lead wiring can be performed (made-to-order).

  • COMPOSITE MATERIALS USE

    Single-element / Plane type two-element / Plane type three-element

    Single-element 

    Gauge pattern Type Gauge
    length
    (mm)    		 Gauge
    width
    (mm)    		 Backing
    length
    (mm)    		 Backing
    width
    (mm)    		 Resistance
    (Ω)
    bfla_23 BFLA-2-3
    BFLA-2-5
    BFLA-2-8    		 2 0.9 7.6 2.5 120
    BFLA-5-3
    BFLA-5-5
    BFLA-5-8    		 5 1.5 12.3 3.3 120

    Each package contains 10 gauges.
    * Attachment of lead wiring can be performed (made-to-order).

     

    Stacked-type two-element

    Gauge pattern Type Gauge
    length
    (mm)    		 Gauge
    width
    (mm)    		 Backing
    length
    (mm)    		 Backing
    width
    (mm)    		 Resistance
    (Ω)
    bfca_23 BFCA-2-3
    BFCA-2-5
    BFCA-2-8    		 2 1.3 8.0 8.0 120
    BFCA-5-3
    BFCA-5-5
    BFCA-5-8    		 5 1.5 11.5 11.5 120

    Each package contains 10 gauges.
    * Attachment of lead wiring can be performed (made-to-order).

     

    Stacked-type three-element

    Gauge pattern Type Gauge
    length
    (mm)    		 Gauge
    width
    (mm)    		 Backing
    length
    (mm)    		 Backing
    width
    (mm)    		 Resistance
    (Ω)
    bfra_23 BFRA-2-3
    BFRA-2-5
    BFRA-2-8    		 2 1.3 8.0 8.0 120
    BFRA-5-3
    BFRA-5-5
    BFRA-5-8    		 5 1.5 11.5 11.5 120

    Each package contains 10 gauges.
    * Attachment of lead wiring can be performed (made-to-order).

  • Lead wires recommended for BF 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 LJB/LJB-F －20 to +80 BFLA-2-3-3LJB
    2-wire parallel vinyl wire LJC/LJC-F BFLA-2-3-3LJC
    General measurement 3-wire parallel vinyl wire LJBT/LJBT-F －20 to +80 BFLA-2-3-3LJBT
    3-wire parallel vinyl wire LJCT/LJCT-F BFLA-2-3-3LJCT
    Medium/high temperature 3-wire parallel special vinyl wire LXT/LXT-F －20 to +150 BFLA-2-3-3LXT
    3-strand twisted FEP single-core wire 6FB○LT/6FB○LT-F －269 to +200 BFLA-2-3-6FB3LT
    Temperature-integrated 3-wire parallel vinyl wire TLJBT/TLJBT-F －20 to +80 BFLA-2T-3-3TLJBT
    3-strand twisted FEP single-core wire 6FB♦TLT －269 to +200 BFLA-2T-3-6FB3TLT

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

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