CGEO-SG4 Vibrating Wire Embedment Strain Gauge

Description

CGEO-SG4-150 Embedment Strain Gauge can be directly embedded in the concrete or reinforced concrete of hydraulic structures and other structures to monitor the strain of the concrete. The built-in temperature sensor can simultaneously monitor the temperature at the measuring point.

CGEO-SG4X-150 Vibrating Wire Strain Gauge has an integrated structure with excellent waterproof performance, suitable for monitoring the stress and strain of concrete or steel structures, and is particularly suitable for monitoring the strain of concrete piles.

CGEO-SG4-250 Heavy Duty Strain Gauge suitable for monitoring the strain of roller-compacted concrete.

CGEO-SG4 series is suitable for strain monitoring of foundations, pile foundations, bridges, tunnel linings, etc. With some optional supporting equipment, it can form a multi-directional strain gauge and a stress-free gauge.

Applications

Concrete members and struts

Bridges and dams

Piles and mass concrete

Strains in reinforcing bars during construction, pile testing and service life

Operation

The Model CGEO-SG4 Embedment Strain Gauge is installed prior to concrete pour and protected during the pour to prevent damage.

The gauge may also be pre-cast into a concrete briquette for subsequent casting into the structure, or embedded into holes drilled into an existing structure. The pickup coil is fitted over a flattened section in the centre of the gauge tube and held in place using a securing clamp; this can be installed on site immediately prior to installation. The sensor is then installed by placing the gauge at a location in the structure suitable for accurately passing microdeformation from the surrounding cured concrete to the gauge.

Cables from the gauges are run to a readout, a terminal box, or a data logging point.

Features

Accurate, long-term stability

Robust design and reliable

O-ring seals provide waterproofing

Fit for manual or remote reading

Range is adjustable to suit compression or tension

Integral thermistor

Specifications