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Strain Gages - Model 3900 Embedment Strain Gage

Model 3900 Embedment Strain Gage

The Model 3900 Embedment Strain Gage is designed for the measurement of dynamic strains in concrete structures, asphalt roadways and soils. It comprises a full bridge strain gaged proving ring coupled, between two flanges, with a spring and shaft. When the flanges move relative to one another, the tension in the spring changes and hence the strain in the proving ring. A PVC tube serves as a protective housing and holds the gage at the desired initial tension.

Standard Range  5000 microstrain  Sensitivity  0.125 mV/V nominal
 Accuracy  ±0.025% F.S.  Nonlinearity  < 0.5% F.S.
 Temperature Range  –20°C to +80°C  Active Gage Length*  203 mm

*Other lengths available on request