Concrete Material Use Strain Gauge
P series Polyester wire strain gauge
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) |
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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-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-60-11 60 1 74 74 120 3-element PLR-60-11 60 1 74 74 120 Each package contains 10 gauges.
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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
Type Gauge
length
(mm)
Gauge
width
(mm)
Backing
length
(mm)
Backing
width
(mm)
Resistance
(Ω)Lead wire
pre-attachedType name
of lead wire
preattachedPL-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-FPL-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
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) |
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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-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-20-11 20 1.2 28 28 120 PFLC-30-11 30 2.3 40 40 120 3-element PFLR-20-11 20 1.2 28 28 120 PFLR-30-11 30 2.3 40 40 120 Each package contains 10 strain gauges.
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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
Type Gauge
length
(mm)Gauge
width
(mm)Backing
length
(mm)Backing
width
(mm)Resistance
(Ω)Lead wire
pre-attachedType name
of lead wire
preattachedPFL-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-FPFL-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-FPFL-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.
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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Single-element
Type Gauge
length
(mm)Gauge
width
(mm)Backing
length
(mm)Backing
width
(mm)Backing
thickness
(mm)Resistance
(Ω)Lead wire
pre-attachedFLM-30-11 30 0.5 60 18 0.12 120 - FLM-60-11 60 0.7 90 18 0.12 120 - Each package contains 10 gauges.
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WATERPROOF TYPE Single-element
0.09 mm2 integral crosslinked polyethylene sheath leadwire of 2 m standard Total leadwire resistance per meter : 0.4 Ω
Type Gauge
length
(mm)Gauge
width
(mm)Backing
length
(mm)Backing
width
(mm)Backing
thickness
(mm)Resistance
(Ω)Lead wire
pre-attachedWFLM-30-11-2LJQTA 30 0.5 60 18 4 120 3-wire 2m WFLM-60-11-2LJQTA 60 0.7 90 18 4 120 3-wire 2m Each package contains 10 gauges.
Other length of leadwire is also available on request.
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