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ST4 Vibrating Wire Embedment Strain Gauge

Range 3000 microstrain
Resolution 1 microstrain
Accuracy ±0.1% full scale
Temperature range -20 to 80°C
Active gauge length 150 mm
Excitation method Pluck or sweep
Material Stainless Steel
Weight 58g
Dimensions L 157mm x Ø 19mm
Thermistor type NTC 3k Ω, accuracy ±0.5°C

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ST4 Vibrating Wire Embedment Strain Gauge

ST4 Vibrating Wire Embedment Strain Gauge

Range 3000 microstrain
Resolution 1 microstrain
Accuracy ±0.1% full scale
Temperature range -20 to 80°C
Active gauge length 150 mm
Excitation method Pluck or sweep
Material Stainless Steel
Weight 58g
Dimensions L 157mm x Ø 19mm
Thermistor type NTC 3k Ω, accuracy ±0.5°C

 

Embedment strain-gauges are directly embedded in concrete for strain measurements of piles, foundations, dams, tunnel, etc.

The 150mm long gauge, which is made from Stainless Steel, may be pre-attached to rebar or by attachment to a 2, 3 or 4 directional

rosette, thereby measuring strain in several directions.

The gauge comprises a sealed tube containing a wire held in tension between two circular stainless steel pads, one at each end.