The ARGOS® Instant is a standardized Weighing in Motion (WIM) and force measurement system. The principle of the system is that special clamp-on sensors are mounted in the sleeper spaces.
These clamp-on sensors are mounted on the rails over a length of approximately 9.6 m.
There is no mechanical modification of the rail. There is no modification or alteration of rail fastenings, sleeper (cross-tie), sleeper geometry, permanent way profile, ballast or formation in any way. Basically, measurements of vertical forces are carried out. The running behaviour of vehicles is not influenced.
The standard metrological environments −30°C to +65°C, fine and coarse dust particles, rain, snow, ice protected, humidity from dry to 95%, flying ballast stone protected. The system is also protected with stainless steel protectors against most chemicals such as lime, sulphur, petroleum products and phosphates, which may spill from wagons.
Electromagnetic interferences and lightning do not disturb the system.