Jewell Instrument - Dynamic Concrete Strain Gage (CSG)
This Dynamic Concrete Strain Gage (CSG) is a concrete embeddable strain gage designed for use in high frequency (dynamic) environments. These rugged, gages are ideal for infrastructure, and structural health monitoring applications with high levels of environmental noise. Our Dynamic CSGs use a Wheatstone bridge circuit, which compensates for temperature and lead resistance, and filter unwanted noise for precision strain measurements. Units are offered in either bending strain or axial strain configurations (please specify per order), and are easily implemented into conventional data acquisition systems. Jewell’s Dynamic CSGs are a perfect choice for measuring strains in pavement, columns, bridge components and other concrete structural components.
Dynamic concrete strain gages measure axial strain in the concrete under high frequency (dynamic) conditions. Utilizing four active elements of a Wheatstone bridge circuit, this gage compensates for temperature, rejects bending strain (may also be configured to measure bending and reject axial strains), compensates for lead resistance and providing a sensor that is easily adaptable to most data acquisition systems without requiring additional signal conditioning.
Because of their low profile design, these sensors can be used in concrete pavements, columns, walls, bridge elements or wherever dynamic strains need to be measured.
Each sensor is provided with end washers, nuts and are individually calibrated with standard 30-ft lead length attached (other lengths upon request) and supplied with fabrication Quality-Control documentation.
- Bridge Circuit: Four active 350-ohm strain gages
- Range: ±2000 microstrain
- Sensitivity at 1000 µ?: ~ 1.3 mVout/Vexc
- Excitation: up to 10 Volts
- Temperature Range: -34°C to 80°C
- Lead wire: 24 AWG, twisted four-wire with sheilding