Product description

Strain sensors are widely used in many measurement applications, whether static or dynamic. A strain gauge is sometimes referred to as an electrical resistance strain gauge, or simply a resistance strain gauge. They are also used in dynamic measurement applications where the output fluctuates significantly due to deformation of the tested mechanical object, and they are commonly applied to components subjected to stress and torsion.  

“Strain” is defined as the ratio of the change in an object’s length to its original length. A strain gauge can measure this change caused by an external force and converts it into an electrical signal that can later be digitized, displayed, logged, and analyzed.  

The rebar strain gauge is a robust type of resistance strain sensor that provides accurate and reliable strain-level measurements in various construction applications such as mass concrete structures, diaphragm walls, and barrette piles. It is designed to withstand harsh environments and is an ideal instrument for geotechnical engineeringapplications.  

Technical specifications

• Sensor type: Weldable Electrical / Embedded Resistance-Type Strain Gauge
• Measurement range: 3000 µε (±1500 µε)
• Output sensitivity: 2 mV/V
• Accuracy: ±0.8% FS
• Non-linearity: ±2.0% FS
• Length: 900 mm (±0.01 mm)
• Recommended excitation voltage: 4–10 V
• Operating temperature: -25 °C to 80 °C
• Ingress protection: IP68
• Weight (excluding cable): 800 g
• Material: ST37 Galvanized-Coated Steel
• Resistance: 350 Ω
• Note: FS = Full Scale