Weighing Review Awards 2018
Nominated for Best Weigh-In-Motion Systems (WIM)
HAENNI Strip Sensor WL 400
The wheel load sensor WL 400 can be used as LSWIM system up to 20 km/h and has a capacity of 30 ton per axle. Disregarding the influence made by external factors, the sensor itself has an accuracy of 2%.
The entire system composed of two sensors, one position frame and four levelling mats weights-in at approximately 50 kg and fits into a trunk of a personal car. Due to its light weight, the strip sensor WL 400 is easy to transport and can be used at any time without the need of fixed installation. As an alternative the sensor may be placed into a recess in the pavement for tolling and freight management applications.
The sensor has no display and is completely overrun able. Its signal is sent to the PC via a rugged cable. The further processing, visualization and printout is performed by a personal computer with the software EC 200.
Giropès Girwim
Girwim provides various control and sanction systems.
HSW system registers telemeter information of the vehicles which travel on rapid roads or high speed, up to 180 km/h.
The accuracy of the system is not affected by the type of tyre, the number of wheels or the pressure. The system measures a signal which is defined as a horizontal load.
MSW systems register the information of vehicles to up to 50 km/h. These vehicles are the ones shortlisted at
the control site HSW to do a second pilot survey.
PROCEDURE The registered data of the vehicles is transmitted to the central of control for their analysis and
to be contrasted with the information registered in the first control site.
The telemeter information of the vehicle is registered by the data logger GIRWIN DYNA B612.
The shortlisted vehicles in the earlier control sites are diverted to the third and last weighing station at Low Speed (LSW), up to 15 km/h or to a static weighing scale system, with the aim of doing an accuracy weighing.
