Vibrating wire transducer SG-01

This device is used to measure strains in tunnel linings, steel struts and reinforcing bars of piles, columns, walls and the like.

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Description of the

The vibrating wire extensometer is often used to measure the deformation of metal structures to which it is attached. The deformation of concrete components can also be measured with transducers set in concrete. This instrument guarantees long-term accuracy and stability.

Thanks to the frequency signal, it is not affected by the length of the cable or electromagnetic interference.

A thermistor for measuring the temperature is embedded in the device.
The vibrating wire extensometer works as follows: A steel wire is stretched between two mounting blocks that are fixed to the surface to be measured or set in concrete. Any deformation of these blocks changes
the voltage in the steel wire and therefore the resonant frequency. An internal electromagnetic coil measures the resonant frequency and thus the voltage of the wire.

Application

  • Monitoring of steel structures and arch supports
  • Pipeline monitoring
  • Bridges and viaducts

  • Monitoring of gravity and arch dams

  • Measurement of tunnel linings

  • Concrete structures, beams and columns

  • Measuring the pile force

  • Measurement in mass concrete

Features

  • Reliable long-term use
  • Built-in temperature sensor
  • Waterproof
  • Accurate measured values even with long cable lengths
  • Robust construction
  • n Can be installed in concrete

Models

Type ELC
600/60/50		 ELC
1000/88/80		 ELC
1000/100/80		 ELC
1000/105/80		 ELC
1500/125/80		 ELC
2000/160/80		 ELC
3000/190/80
Nominal load [kN] (FS) 600 1000 1000 1000 1500 2000 3000
Permanent load [kN] 480 800 800 800 1200 1600 2400
Permitted overload [kN] 110% 110% 110% 110% 110% 110% 110%
Edition issue
diameter (B) [mm]		 60 88 100 105 125 162 190
Outside diameter
er(C) [mm]		 70 99 111 116 139 179 212
Height (H) [mm] Column 2 Value 6 Column 3 Value 6 Column 4 Value 6 Column 5 Value 6 Column 6 Value 6 Column 7 Value 6 Column 8 Value 6
Signal [mV/V] Column 2 Value 7 Column 3 Value 7 Column 4 Value 7 Column 5 Value 7 Column 6 Value 7 Column 7 Value 7 Column 8 Value 7

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swiss sensor technology