Spot Weldable Strain Gauges
Spot Weldable Strain Gauges
Vibrating Wire And Spot-Weldable Strain Gauges

 

  • Sisgeo Vibrating Wire And Spot-Weldable Strain Gauges to monitor strain in steel or in reinforced concrete and massive concrete structures.
  • Arc-weldable VW strain-gauges are designed for arc welding to steel structure such as tunnel linings, piles and bridges.
  • Directly embedded in concrete for strain measurements of piles, foundations, dams, tunnel, etc.
  • Designed for easy installation on steel structures by means of capacitive spot welder.
  • Resistive strain-gauges are available for dynamic measurements in concrete or steel structure.
Model 0VK4100VS00
Method of installation surface mount strain-gauge with spot-weldable end plates
Excitation method pluck and sweep
Active gauge length 47.5 mm
Range (nominal) 500µε to 3500µε
Sensitivity (1) 1.0 με
Accuracy (2) ±0.5% FS
Stability 0.1% FS/year
Typical frequency range (3) from 1130 to 3000 Hz
Coil resistance 150 Ohm
Thermistor type NTC 3 kΩ
Thermal coeff. of expansion 12.0 ppm / °C
Temperature range -20°C a +80°C
Signal cable 0WE104SG0ZH

 

PRODUCT CODE 0VK4000VS00 0VK4000VSC0 0VK4200VC00 0VK4200VCHP 0VK4000SM00
Description weldable SG concrete surface SG embedment SG embedment SG for deep application shotcrete SG with adjustable tensioning
Measuring principle vibrating wire vibrating wire vibrating wire vibrating wire vibrating wire
Active gauge length 150 mm (5.9") 150 mm (5.9") 165 mm (6.5") 165 mm (6.5") 200 mm (7.9")
Range (nominal) 3000 με (±1500 με) 3000 με (±1500 με) 3000 με (±1500 με) 3000 με (±1500 με) 10000 με (±5000 με)
Typical frequency range (1) 500 - 1000 Hz 500 - 1000 Hz 500 - 1015 Hz 520 - 1025 Hz 1800 - 2460 Hz
Repeatability <±1 με <±1 με <±1 με <±1 με <±3 με
Sensitivity (nominal) 4.043 με / digit (2) 4.043 με / digit (2) 3.814 με / digit (2) 3.814 με / digit (2) 3.542 με / digit (2)
Resolution <1.0 με <1.0 με <1.0 με <1.0 με <1.0 με
Accuracy ±0.5% FS ±0.5% FS ±0.5% FS ±0.5% FS ±3.0% FS (3)
Coil resistance (nominal) 150 ohm 150 ohm 150 ohm 150 ohm 150 ohm
Embedded thermistor type NTC (Negative Temperature Coefficient) 3 kΩ NTC (Negative Temperature Coefficient) 3 kΩ NTC (Negative Temperature Coefficient) 3 kΩ NTC (Negative Temperature Coefficient) 3 kΩ NTC (Negative Temperature Coefficient) 3 kΩ
Embedded thermistor accuracy ±1°C (±0.5°C within 0 - 50 °C) ±1°C (±0.5°C within 0 - 50 °C) ±1°C (±0.5°C within 0 - 50 °C) ±1°C (±0.5°C within 0 - 50 °C) ±1°C (±0.5°C within 0 - 50 °C)
Power supply Automatically selected by readout (max 40 V) Automatically selected by readout (max 40 V) Automatically selected by readout (max 40 V) Automatically selected by readout (max 40 V) Automatically selected by readout (max 40 V)
Output Frequency (strain), Ohm (temperature) Frequency (strain), Ohm (temperature) Frequency (strain), Ohm (temperature) Frequency (strain), Ohm (temperature) Frequency (strain), Ohm (temperature)
IP class IP68 up to 2.0 MPa IP68 up to 2.0 MPa IP68 up to 2.0 MPa IP68 up to 2.0 MPa IP68 up to 2.0 MPa
Restriction for application in fresh concrete (4) max 2.4 MPa concrete pressure max 2.4 MPa concrete pressure max 2.4 MPa concrete pressure max 2.4 MPa concrete pressure max 2.4 MPa concrete pressure
Main body materials stainless steel body and epoxy resin sensor enclosure stainless steel body and epoxy resin sensor enclosure stainless steel body and epoxy resin sensor enclosure stainless steel body and epoxy resin sensor enclosure stainless steel body and epoxy resin sensor enclosure
Anchors material galvanized steel welding blocks galvanized steel blocks and rebars stainless steel circle plates stainless steel circle plates stainless steel circle plates
Coeff. of thermal expansion 12 x 10-6 / °C 12 x 10-6 / °C 12 x 10-6 / °C 12 x 10-6 / °C 12 x 10-6 / °C
Temperature range -20°C + 80°C -20°C + 80°C -20°C + 80°C -20°C + 80°C -20°C + 80°C
Signal cable 0WE104SG0ZH or 0WE104SG0PV 0WE104SG0ZH or 0WE104SG0PV 0WE104SG0ZH or 0WE104SG0PV 0WE104SG0ZH or 0WE104SG0PV 0WE104SG0ZH or 0WE104SG0PV
Max. cable length to logger 1000 m (for more information see FAQ#77) 1000 m (for more information see FAQ#77) 1000 m (for more information see FAQ#77) 1000 m (for more information see FAQ#77) 1000 m (for more information see FAQ#77)

 

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