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SISGEO

Vibrating Wire And Spot-Weldable Strain Gauges

InfrastructureGeotechnical Instrumentation

The vibrating wire spot-weldable strain gauges are mainly designed to measure strain on steel-structure surface. The gauge consist of a steel wire tensioned between two plates which can be either spot-welded or epoxy bonded to the surface in question. Gauge is pre-tensioned during manufacturing at mid full scale or in any other position if requested. Measuring coil is mounted inside a plastic red box with a buil-in thermistor for data thermal corrections. More info.↗

Quantity

Specification

Method of installation	surface mount strain-gauge with spot-weldable end plates
Active gauge length	47.5 mm
Range (nominal)	500µε to 3500µε
Sensitivity	1.0 με
Accuracy	±0.5% FS
Stability	0.1% FS/year
Typical frequency range	from 1130 to 3000 Hz
Coil resistance	150 Ohm
Thermistor type	NTC 3 kΩ
Thermal coefficient of expansion	12.0 ppm / °C
Temperature range	-20°C a +80°C