Scientific Validation of Strain Gauge Strip Sensors’ Superior Stability Over Time
Scientific research and field studies confirm that strain gauge strip sensors provide superior stability and calibration retention in high-speed WIM applications.
The research focused on: the effect of prolonged use without calibration on weight measurement precision; the long-term accuracy of axle load and gross vehicle weight readings; and the impact of road surface chang
Despite the absence of site calibration over the three-year period, the study found only minor variations in sensor readings. The strain gauge sensors continued to meet class B+(7) using a 2-sensor layout, ensuring that total weight measurement errors remained below 7% according to COST323 standard.
