MICROVIB / MICROVIB RR® vibrating string extensometer
The MicroVib© sensor is designed to measure locally the total deformations undergone by concrete (shrinkage deformations, thermal deformations, pathological swellings, mechanical deformations) or steel.
Sensors for strain and stress measurements
The MicroVib© sensor is designed to measure locally the total deformations
undergone by concrete (shrinkage deformations, thermal deformations, pathological
swellings, mechanical deformations) or steel.
The measurement is based on the proven vibrating rope technology, which guarantees
maintenance-free monitoring with long rope lengths and over long periods.
The MicroVib© sensor consists of a flexible monolithic test body, which has two
cheeks defining the measurement length. The measurement of this frequency can
be carried out over large wiring distances.
The MicroVibRR© version is made of radiation resistant materials.
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Applications
MICROVIB / MICROVIB RR® vibrating string extensometer
- Measure locally the total deformations of the concrete and the temperature variations.
- Detecting micro-cracking in a concrete part.
- Measure the opening of microcracks in the concrete.
- Evaluate mechanical stress variations in concrete
- Measure locally the total deformations of the concrete and the temperature variations.
- Detecting micro-cracking in a concrete part.
- Measure the opening of microcracks in the concrete.
- Evaluate mechanical stress variations in concrete
FEATURES | Microvib / Microvib R® |
|---|---|
SENSOR | |
Frequency measurement range | 900Hz - 1200Hz |
Strain measurement range | 3000 μm/m |
Resolution | 1 μm/m |
Deformation accuracy | ± 0.1% EM |
Non-linearity | ± 0.5% EM |
Operating temperature | From -40°C to 105°C |
Temperature measurement range | From -30°C to 80°C |
Thermistor | 3kΩ at 25°C |
Temperature accuracy | ±1°C |
Useful length of the sensor | 54mm or 153mm |
Maximum sensor diameter | 25mm |
Weight | 300g |
Cable length | 1.5 km |
Materials: | Stainless steel |
Options | MicroVibRR version for radioactive and high temperature environments |
Need to measure local deformations in concrete?
