C 110 Vibrating Wire Strain Gauges
The C-110 vibrating wire strain gauge is a thin-wall steel tube sensor with two soldered steel end heads and electromagnetic excitation and pick-up coils, designed for embedment in concrete or structural elements to measure strain from stress variations. It is corrosion resistant and requires no maintenance.
- Strain range
- 2900 µε
- Gauge length
- 110 mm
- Resolution
- 0.35 µε (with PC readout)
Overview
In detail
How it works
The C-110 strain gauge consists of a thin-wall steel tube with two steel heads soldered to its extremities using solder with a low modulus of deformation; the distance between the flanges of the heads determines the gauge length. A small rectangular housing at the gauge midsection encloses the electromagnetic excitation and pick-up coils, and gauges are factory-set at mid-range so that half the range is available for tensile strain and half for compressive strain.
Cabling and application
Gauges are supplied with a 5-conductor cable when the electrical resistance of one coil is also used to provide temperature data, or a 4-conductor cable when temperature measurement is not required. The C-110 is designed for embedment in fine aggregate concrete to measure strain caused by variations in stress.
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Specifications
Technical specifications
- Strain range
- 2900 µε
- Gauge length
- 110 mm
- Resolution
- 0.35 µε (with PC readout)
- Strain gauge coefficient (K)
- 0.3
- Coil resistance
- 90 Ω (each)
- Total length
- 144 mm
- Tube diameter
- 6 mm
- Weight
- 85 g (without cable)
- Waterproof rating
- 1500 kPa (standard)
Related
Often specified alongside
Geosystems
Vibrating Wire Strain Gauge SM-5
- Range
- 3000 µε
- Accuracy
- +/- 0.5% F.S.
- Temp
- −20 to +80°C
- Range
- 200 to 35,000 kPa (standard steps up to 35,000 kPa)
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