Geotechnical Testing Systems Field Monitoring Systems Pavement Instrumentation Bridge Impact Detection

Dynamic Concrete Strain Gages

Dynamic Concrete Strain Gage Data Sheet

Dynamic Concrete Strain Gages (CSG) measure axial strain in rigid pavement under long-term static (slab curling) or high-frequency dynamic (pavement response to trafficking) conditions. These rugged, field-proven sensors are built to withstand the hash conditions of concrete placement and vibration. They can be used in concrete pavements, walls, columns, bridge elements, and any similar concrete structural location to measure dynamic strains.

Utilizing four active elements of a Wheatstone Bridge circuit, this gage is easily adaptable to most data acquisition systems. Each sensor is individually calibrated with overall lead wire length attached and is provided with QC documentation and calibration data.


  • Gage Length : 9 in (230 mm) standard
  • Circuit : Full Wheatstone bridge with 4 active 350-ohm (+/- 0.2%) strain gages
  • Range : ±2000 microstrain
  • Sensitivity at 1000 ME : ~1.3 mVout/Vexc
  • Excitation : 1 to 5 Vdc recommended (up to 10 Vdc max)
  • Output : mV level, ratiometric to Excitation
  • Power : 300 mW max, 72 mW @ 5 Vdc typical
  • Temperature Range : -35 to 175°C (-31 to 350°F)
  • Lead Wire : 35 ft (standard) of 18-30 AWG braided 4-wire with shielding (low or high temp); custom lengths available

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