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應變計 & 鋼筋計 - Model 3900 埋入式應變計

Model 3900 埋入式應變計

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.

Specifications
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