Kamis, 28 September 2017



Long-term reliability
High resolution and accuracy
Rugged: housing resistant to impact and corrosion
Easy to install and use
No maintenance needed
Frequency signal output easy to process and transmit over long distances
Integrated temperature gauge
Watertight to 1500 kPa standard
Frequency measured in sustained or dampened mode
The C-110 strain gauge consists of a thin-wall steel tube with two steel heads soldered to its extremities using solder with a low modulus of deformation. The distance between fl anges of the heads determines the gauge length. A small rectangular housing at the gauge midsection encloses the electro-magnetic excitation and pick-up coils. The electrical resistance of one of the electromagnetic coils provides temperature data, in which case the gauges are delivered with a 5-conductor cable. A 4-conductor cable is used when temperature measurements are not required. Unless specifi ed, gauges are factory-set at mid-range, al lowing one half of the range for measurement of tensile strain, and the other half for compressive strain.


The C-110 strain gauge is designed for embedment in fine aggregate concrete to measure strain caused by variations in stress. If the modulus of elasticity of the material is known, the magnitude of the strain (other than that induced by loading) can be evaluated. In the case of concrete, the effects of temperature, creep, and the autogenous reaction must be known. Typical examples of concrete structures where vibrating wire strain gauges are used include:
  • Dams
  • Nuclear power stations
  • Bridges and viaducts
  • Large buildings
  • Tunnel linings
  • Piles and caissons


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