1.  Context

In an industrial context where productivity gains are constantly being sought, dynamic weighing, i.e. weighing a load in motion, is always of great interest for the time it saves. This is particularly true for weighing on production lines, for weighing one-off items such as parcels or sorting by weight, and also for weighing or volumetric control of continuous material on belt or roller conveyors.

Weighing vehicles in motion is also a topical issue, especially trains and heavy goods vehicles. These are very heavy loads, which can exceed 20 tonnes. In this field, over and above productivity gains, safety and infrastructure preservation are also at stake. For safety, it is desirable to detect vehicles that are globally overloaded, but also to be able to measure the weight per axle, and even better, the weight per wheel, to check the balance of loads; this is essential...