Concrete Material Use Strain Gauge FLM/WFLM series

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)

More Information

Concrete Material Use Strain Gauge PF series

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

More Information

Crack Detection Senser Crack Detection Senser KZCB-A

Crack Detection Senser KZCB-A

This sensor is used for easy and accurate detection of cracks developed on the surface of concrete structures due to deterioration. The sensors are previously bonded onto a concrete structure and the wirings are finished. At the time of regular check, the light source is connected to one optical fiber cable connector after another to perform visual observation of multiple points in order. No power supply is needed on the site. The light source itself is very small and light, and the checking job can be securely performed. Detection accuracy of crack widths can be selected from 0.05 / 0.1 / 0.2 / 0.3 mm, allowing use for detection of cracks at the initial stage or repaired cracks. In addition to ability to connected several double-end KZCB units end-to-end, use of crack sensor adaptor KZCBF-11 allows a data logger to automatically detect cracks.

Crack Detection Senser KZCB-A
Features
  • Use of crack sensor adaptor KZCBF-11 allows a data logger to automatically detect cracks
  • Several units can be connected end-to-end
  • Easy to find out cracks - No special knowledge about management and control of structures is required for the checker.
  • The light emission of the sensor indicates the generation of cracks even in a location where usual visual check is difficult, in cluding an elevated and/or dark place.

  • Specifications
    Type KZCB-
    300A-
    005    		 KZCB-
    300A-
    010    		 KZCB-
    300A-
    020    		 KZCB-
    300A-
    030    		 KZCB-
    500A-
    005    		 KZCB-
    500A-
    010    		 KZCB-
    500A-
    020    		 KZCB-
    500A-
    030
    Detection length 300mm 500mm
    For measurement of Concrete surfaces
    Detected crack width 0.05
    mm    		 0.1
    mm    		 0.2
    mm    		 0.3
    mm    		 0.05
    mm    		 0.1
    mm    		 0.2
    mm    		 0.3
    mm
    Applicable adhesive EB-2 , PS
    Allowable temperature rang −30 to +70℃ (no freezing) 
    Protection class IP58 equivalent
    Input/output cable ø20.9-mm core optical cable with 0.3-m FC connector (both ends)
    Weight Approx. 10 g (excl. cable) Approx. 17 g (excl. cable)

Crack Detection Senser Crack Detection Senser KZCA-A

Crack Detection Senser KZCA-A

This sensor is used for easy and accurate detection of cracks developed on the surface of concrete structures due to deterioration. The sensors are previously bonded onto a concrete structure and the wirings are finished. At the time of regular check, the light source is connected to one optical fiber cable connector after another to perform visual observation of multiple points in order. No power supply is needed on the site. The light source itself is very small and light, and the checking job can be securely performed. Detection accuracy of crack widths can be selected from 0.05 / 0.1 / 0.2 / 0.3 mm, allowing use for detection of cracks at the initial stage or repaired cracks.

Crack Detection Senser KZCA-A
Features
  • Easy to find out cracks - No special knowledge about management and control of structures is required for the checker.
  • The light emission of the sensor indicates the generation of cracks even in a location where usual visual check is difficult, in cluding an elevated and/or dark place.

  • Specifications
    Type KZCA-
    300A-
    005    		 KZCA-
    300A-
    010    		 KZCA-
    300A-
    020    		 KZCA-
    300A-
    030    		 KZCA-
    500A-
    005    		 KZCA-
    500A-
    010    		 KZCA-
    500A-
    020    		 KZCA-
    500A-
    030
    Detection length  300ｍｍ 500ｍｍ
    For measurement of Concrete surfaces
    Detected crack width 0.05
    mm    		 0.1
    mm    		 0.2
    mm    		 0.3
    mm    		 0.05
    mm    		 0.1
    mm    		 0.2
    mm    		 0.3
    mm
    Applicable adhesive EB-2 , PS
    Allowable temperature range －30 to ＋70 ℃ (no freezing)
    Protection class IP58 equivalent
    Input/output cable ø20.9-mm core optical cable with 0.3-m FC connector
    Weight Approx. 8 g (excl. cable) Approx. 15 g (excl. cable)

Measure Type Displacement Transducer DP-G

DP-G Tape Measure Type Displacement Transducer 500mm to 2000mmCE

The DP-G is a displacement transducer designed for measurement of large displacement. A stainless steel wire is drawn out to measure the displacement. The wire tension is constant regardless of the displacement. It is a small and light transducer with excellent accuracy.

Protection ratings : IP 40 equivalent

DP-G
Features
  • Small and light
  • Measurement of large displacement
  • Wire tension is constan
  • Easy handling

  • Specifications
    Type Capacity Rated output Sensitivity
    (×10-6 strain/mm)    		 Non-
    linearity    		 Temperature
    range
    DP-500G 500 mm 5 mV/V
    (10000×10-6 strain) ±0.3 %    		 20 0.3 %RO -10 to +80 ℃
    (no condensation)
    DP-1000G 1000 mm 10
    DP-2000G 2000 mm 5

    *Spike noise may be generated at speeds lower than 10 mm/s.

    Output polarity

    img-trout-02-1

    Measurement moves in the plus direction with regard to the direction the wire is drawn out in.

More Information

Caisson Method for Measuring Sensor KKB-PC Caisson cutting-edge reaction meter

KKB-PC Caisson cutting-edge reaction meter　10MPa～25MPa

The KKB-PC is a transducer to measure subgrade reaction force (bearing force) acting on the caisson cutting edge. It is installed so that the sensing area of the transducer faces the bottom of the cutting edge and measures the reaction force when settled and fixed.

 

Protection ratings : IP 68 equivalent

 

KKB-PC Caisson cutting-edge reaction meter

  • Specifications
    Type Capacity Rated output Non-linearity Hysteresis Temperature range Input/Output cable
    KKB-10MPC 10MPa Approx.1mV/V
    (2000×10-6 strain)    		 1%RO 1%RO -30 to +70℃ φ9mm 0.5mm2 4-core shielded chloroprene cable 7m
    KKB-15MPC 15MPa
    KKB-20MPC 20MPa
    KKB-25MPC 25MPa

More Information

Concrete Material Use Strain Gauge P series

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

    pl_6011_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.

More Information