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EMBEDDED STRAIN GAUGES EM Series

 

The EM is composed of two end pieces joined by a tube that protects a length of steel wire. The wire is sealed in the tube by a set of o-rings on each end piece. Both end pieces have a flat circular flange to allow transfer of concrete deformation to the wire. An electromagnet is fitted at the center of the gauge. Strain developing in the concrete modifies the tension in the wire, therefore changing its resonant frequency, which is read by the electromagnet.


The EM-5 is the standard model and is used in different types of structures, as mentionned above.

The EM-10 consists of a rugged version to be embedded in concrete with coarse aggregates. The shorterEM-2 model is designed for laboratory use or for limited spaces.

Unless specified otherwise, the gauge tension is factory-adjusted at mid-range.
The gauge is very compliant. It does not induce stresses in the host media and can therefore be embedded in young curing concrete as well as in hard, synthetic materials such as resins, fiberglass and urethane.


A thermistor inside the EM supplies information on the effects of temperature on the materials

 

Kami sangat menyarankan anda untuk menggunakan data loggeratau data acquisition agar pemantauan menjadi lebih efisien dan cepat.


Spesification

 

  • MODEL EM-2, EM-5, EM-10
  • Range 3000 με
  • Resolution with MB-6T/MB-6TL 0.01 με (linear unit)
  • Operating temperature −20 to +80°C
  • Thermistor 3kΩ (see model TH-T)
  • Electrical cable IRC-41A, IRC-41AP (optional)
  • Accuracy 0.5% F.S., 0.1% F.S. optional