Concrete Material Use Strain Gauge

P series Polyester wire strain gauge　CE_logo

These are wire strain gauges utilizing a polyester resin backing. They are mainly used for surface strain measurement on concrete, mortar or rock.

Applicable specimen Concrete, Mortar
Operational temperature (℃) -20 to +80 ℃
Temperature compensation range (℃) +10 to +80 ℃
Applicable adhesive CN-E, RP-2, PS
Backing Polyester
Element Cu-Ni (wire)
Strain limit at room temperature 2 % (20000 x 10-6 strain)
Fatigue life at room temperature 1 x 105 (±1000 x 10-6 strain)
Features

Construction of strain gauge on concrete test piece

 

Attaching strain gauge to concrete (CN-E adhesive)

  • Single-element / two-element / three-element
    Gauge pattern Type

    Gauge

    length

    (mm)

    Gauge

    width

    (mm)

    Backing

    length

    (mm)

    Backing

    width

    (mm)

    		 Resistance
    (Ω)
    Single-element
    pl_6011    		 PL-60-11 60 1 74 8 120
    PL-90-11 90 1 104 8 120
    PL-120-11 120 1 134 8 120
    2-element
    plc_6011    		 PLC-60-11 60 1 74 74 120
    3-element
    plr_6011    		 PLR-60-11 60 1 74 74 120

    Each package contains 10 gauges.

  • Dedicated integral leadwire recommended for P series
    Application Product name Lead wire code Operating temperature
     (℃)    		 Leadwire code exampled
    General use (temperature unchanged during measurement) Paralleled vinyl LJB-F -20 to +80 PL-60-11-3LJB-F
    Paralleled vinyl LJC-F PL-60-11-3LJC-F
    General use 3-wire paralleled vinyl LJBT-F -20 to +80 PL-60-11-3LJBT-F
    3-wire paralleled vinyl LJCT-F PL-60-11-3LJCT-F
    1-gauge 4-wire system Polypropylene 4-wire parallel wire
    (with modular)    		 LQM-F -20 to +100 PL-60-11-3LQM-F

    * Strain gauges of 2-element / 3-element rosette are not available with integral lead wire.
    * Only the leadwires using lead-free solder are available for strain gauges with CE marking.

  • Standard leadwire integrated strain gauges of P series (Single-element)

    Leadwire used: 0.11 mm2 / Total leadwire resistance per meter: 0.32 Ω

    pfl_1011_lead

    Type

    Gauge

    length

    (mm)

    Gauge

    width

    (mm)

    Backing

    length

    (mm)

    Backing

    width

    (mm)

    		 Resistance
    (Ω)    		 Lead wire
    pre-attached    		 Type name
    of lead wire
    preattached
    PL-60-11 60 1 74 8 120 Paralleled 1m
    Paralleled 3m
    Paralleled 5m
    3-wire 3m
    3-wire 5m    		 -1LJC-F
    -3LJC-F
    -5LJC-F
    -3LJCT-F
    -5LJCT-F
    PL-90-11 90 1 105 8 120 Paralleled 1m
    Paralleled 3m
    Paralleled 5m
    3-wire 3m
    3-wire 5m    		 -1LJC-F
    -3LJC-F
    -5LJC-F
    -3LJCT-F
    -5LJCT-F

    * Minimum order quantity is 10 gauges.
    * PL-120-11 is also available with integral leadwire.
    * 2-element/3-element rosette strain gauges are not available with integral leadwire.

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PF series Polyester foil strain gauge　CE_logo

These are foil strain gauges utilizing a polyester resin backing which is the same as the P series. It is suited mainly to strain measurement on concrete or mortar.

Applicable specimen Metal, Mortar
Operational temperature(℃) -20 to +80 ℃
Temperature compensation range(℃) +10 to +80 ℃
Applicable adhesive CN-E, RP-2, PS
Backing Polyester
Element Cu-Ni
Strain limit at room temperature 2 % (20000 x 10-6 strain)
Fatigue life at room temperature 1 x 106 (±1500 x 10-6 strain)
Features

Construction of strain gauge on concrete test piece

 

Attaching strain gauge to concrete (CN-E adhesive)

  • Single-element / two-element / three-element
    Gauge pattern Type Gauge
    length
    (mm)    		 Gauge
    width
    (mm)    		 Backing
    length
    (mm)    		 Backing
    width
    (mm)    		 Resistance
    (Ω)
    Single-element
    pfl_1011    		 PFL-10-11 10 0.9 17.5 5 120
    PFL-20-11 20 1.2 28 6 120
    PFL-30-11 30 2.3 40 7 120
    2-element
    pflc_3011    		 PFLC-20-11 20 1.2 28 28 120
    PFLC-30-11 30 2.3 40 40 120
    3-element
    pflr_3011    		 PFLR-20-11 20 1.2 28 28 120
    PFLR-30-11 30 2.3 40 40 120

    Each package contains 10 strain gauges.

  • Dedicated integral leadwire recommended for PF series
    Application Product name Lead wire code Operating temperature (℃) Leadwire code exampled
    General use (temperature unchanged during measurement) Paralleled vinyl LJB-F -20 to +80 PFL-10-11-3LJB-F
    Paralleled vinyl LJC-F PFL-10-11-3LJC-F
    General use 3-wire paralleled vinyl LJBT-F -20 to +80 PFL-10-11-3LJBT-F
    3-wire paralleled vinyl LJCT-F PFL-10-11-3LJCT-F
    1-gauge 4-wire system Polypropylene 4-wire parallel wire
    (with modular)    		 LQM-F -20 to +100 PFL-10-11-3LQM-F

    * PFLC-20-11, PFLR-20-11, PFLC-30-11, and PFLR-30-11 cannot be additionally outfitted with a lead wire
    * Only the leadwires using lead-free solder are available for strain gauges with CE marking.

  • Standard leadwire integrated strain gauges of PF series (Single-element)

    Leadwire used: 0.11 mm2 / Total leadwire resistance per meter: 0.32 Ω

    pfl_1011_lead
    Type Gauge
    length
    (mm)    		 Gauge
    width
    (mm)    		 Backing
    length
    (mm)    		 Backing
    width
    (mm)    		 Resistance
    (Ω)    		 Lead wire
    pre-attached    		 Type name
    of lead wire
    preattached
    PFL-10-11 10 0.9 17.5 5 120 Paralleled 1m
    Paralleled 3m
    Paralleled 5m
    3-wire 3m
    3-wire 5m    		 -1LJC-F
    -3LJC-F
    -5LJC-F
    -3LJCT-F
    -5LJCT-F
    PFL-20-11 20 1.2 28 6 120 Paralleled 1m
    Paralleled 3m
    Paralleled 5m
    3-wire 3m
    3-wire 5m    		 -1LJC-F
    -3LJC-F
    -5LJC-F
    -3LJCT-F
    -5LJCT-F
    PFL-30-11 30 2.3 40 7 120 Paralleled 1m
    Paralleled 3m
    Paralleled 5m
    3-wire 3m
    3-wire 5m    		 -1LJC-F
    -3LJC-F
    -5LJC-F
    -3LJCT-F
    -5LJCT-F

    * Minimum order quantity is 10 gauges.
    * PFLC-20-11, PFLR-20-11, PFLC-30-11, and PFLR-30-11 cannot be additionally outfitted with a lead wire

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FLM/WFLM series Metal backing strain gauge

These strain gauges have thin stainless steel backings which prevent the penetration of moisture from the reverse sides. This construction is aimed for successful strain measurement on concrete surface. The WFLM gauges have moisture proofing over-coating and integral leadwire in addition to the stainless steel backing. It is intended for long term measurement or measurement on underwater-curing conctrete.

FLM/WFLM series Metal backing strain gauge
Applicable specimen Concrete, Mortar
Operational temperature(℃) -20 to +80 ℃
Temperature compensation range(℃) +10 to +80 ℃
Applicable adhesive PS
Backing SUS304
Element Ni-Cr
Strain limit at room temperature 0.5 % (5000 x 10-6 strain)
Fatigue life at room temperature 1 x 105 (±1000 x 10-6 strain)

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