Why CAMEA Offers Various WIM Sensor Lengths
WIM systems use weighing WIM strip piezo-quartz or strain gauge sensors installed perpendicular to the direction of travel in two or more rows and positional piezo-polymer cable sensors installed tilted to the direction of travel.
Synergy of Perpendicular and Tilted Layouts
Because of the suitable design, CAMEA's piezo-quartz WIM sensors can be installed not only perpendicularly but also tilted, which replaces and enhances the functions of both types of sensors in detecting dual tires, detecting vehicles driving outside the weighing sensors (position in lane), and measuring tire pressure. It also reduces the total number of sensors (less cost and road interference) and simplifies the processing electronics (no need to process signals from multiple sensor types).
- EFFICIENCY: INTEGRATING PERPENDICULAR AND TILTED LAYOUTS REDUCES THE TOTAL NUMBER OF SENSORS, LOWERING BOTH COSTS AND ROAD INTERFERENCE
Eliminating Evasion Through Full-Width Coverage
For high quality WIM applications, it is essential that the sensors are installed closely together across the entire width of the roadway, including the shoulder. Otherwise, the WIM system will not weigh in the exposed parts of the road, which the drivers will soon learn, and will then deliberately drive through these areas to avoid weighing their usually overloaded vehicle.
Variable Lengths for Flexible Installation
As a standard, CAMEA offers WIM sensors in lengths of 150, 175, 200 and 225 cm, or even 125 or 100 cm, and with a cable outlet on the long side, allowing them to be installed close together across the entire width of the road without gaps or uncovered shoulders. In practice, these perpendicular+tilted combinations can for example be used: 150+175 cm, 175+200 cm, 200+225 cm.