Dynamic asphalt strain gauges measure axial strain in flexible pavement under high frequency (dynamic) conditions. Utilizing four active elements of a Wheatstone bridge circuit, this gauge compensates for temperature, and rejects bending strain, providing a sensor that is easily adaptable to most data acquisition systems without requiring additional signal conditioning.
This low modulus, ruggedized sensor is built to withstand the high temperature and vibratory rolled compaction required for asphalt placement.
Each sensor is individually calibrated and supplied with fabrication Quality-Control documentation.
| Input Resistance | 350Ω Nominal |
| Output Resistance | 350Ω Nominal |
| Sensitivity at 1000 µϵ | ~1.3mV/V Nominal |
| Excitation | 2-5 VDC |
| Operating Temperature Range | -34° to 200° C |
| Lead Wire | #22 AWG Truck-Weight Lead Wire |
*Specifications subject to change without notice on account of continued product development
| Datasheet |
