What are the reasons for the large errors and inaccurate measurements in quantitative loading systems?
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Quantitative loading systems often experience inaccurate measurements during operation (compared to truck scales or rail scales). How do people address this issue? Additionally, how can technical measures be taken to prevent intentional under-measurement in order to ensure that more material is loaded actually?
I’ve encountered this situation as well; when asking about hitchhiking rides, I also load goods in bulk and set the weight at 25 tons. Yet there are always complaints that the actual weight is lower than that, meaning not enough weight has been added.
I wonder how much the difference can be per vehicle? We usually differ by a few dozen kilograms; when the process measurements show some deviation, I say it’s normal. The deviation in their truck scales: lol
It depends on what type of material you are loading. Additionally, the truck scale itself has a certain degree of error, so it depends on how you consider that factor!
What type of flow meter is used for loading? We use a mass flow meter, and the loading volume is roughly the same as that indicated by the scale
There are many influencing factors. The main issues are: there is an error between the two measurement methods, especially when compared with rail scales ； The effect of air buoyancy ； Volatile components during loading and abnormal operation of the flow meter, etc.