In principle, a distinction is made between three different types:<\/p>\n\n
Dynamic track bridge scales<\/h3>\n\n
The dynamic weighbridge consists of one or more interconnectable weighbridges. The design of the weighbridge(s) is similar to the static weighbridges with load cells and weighing platform. The rails are mounted on the weighing platform and designed with a rail inclined cut. Rail switches are integrated into the rails to detect the position of the wagons on the scale. Together with the weighing terminal and the software, the weight of the individual wagons or bogies is determined dynamically during the journey at speeds of up to 10 km\/h. <\/p>\n\n
Advantages:<\/strong><\/p>\n\n Disadvantages:<\/strong><\/p>\n\n A track scale without foundations – quick and inexpensive installation. The HE-DRS track scale is a foundationless track scale that is mounted directly on a compacted ballast bed. <\/a><\/p>\n\n For the dynamic track scale with force sensors, several force sensors are drilled and pressed into the track. If a train runs over the scale at up to 30 km\/h, the rail is deformed by the mass of the vehicle (deformation). The change in material tension deforms the sensor, in which strain gauges are fitted in the same way as in a conventional load cell. This allows the weight of the individual wheelset or bogie to be calculated from the specific deformation behavior of the rail. <\/p>\n\n Advantages:<\/strong><\/p>\n\n Disadvantages:<\/strong><\/p>\n\n The HE-Point dynamic rail vehicle scale serves as a checkweigher and is one of the most modern solutions on the market for the fully automatic monitoring of wagon weights and loads. <\/a> Like the DMS in rail scales, a dynamic track scale based on weighing sleepers is a gapless construction without rail cuts. In simple terms, several sleepers are removed from the track and replaced by weighing sleepers. Load cells are installed in these sleepers. In comparison with the weighbridge, the gapless (and therefore force-coupled) design means that the scales cannot be adjusted statically, but can only work purely dynamically. This requires a very stable substructure without stiffness jumps. The difference to scales with strain gages in the rail is that calibratable sensors can be used for this variant and the scales are therefore calibratable. <\/p>\n\n Advantages:<\/strong><\/p>\n\n Disadvantages:<\/strong><\/p>\n\n\n
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![\"Dynamic](\"https:\/\/essmann.com\/wp-content\/uploads\/2021\/06\/Gleisfahrzeugwaage-HE-DRS-3-1024x681.jpg\")
<\/a><\/figure>\n\nDynamic track bridge scales<\/h2>\n\n
Dynamic track scale with strain gauge in the track<\/h3>\n\n
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![\"ESSMANN](\"https:\/\/essmann.com\/wp-content\/uploads\/2024\/05\/20240530_arcelor_HE_point_0251-1024x683.jpg\")
<\/a>Dynamic track scale with strain gauge in the track<\/h2>\n\n
Dynamic track scales on weighing sleepers<\/h3>\n\n
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![\"Dynamic](\"https:\/\/essmann.com\/wp-content\/uploads\/2022\/04\/Eichzug-Essmann-Gleiswaage-Bild.jpg\")
<\/a><\/figure>\n\nDynamic track scales on weighing sleepers<\/h2>\n\n