The complete point of having a load cell & torque sensor is to be able to weigh your loads sufficiently and accurately, so when they are not giving us the precision that we expect, it leaves us wondering just what could be affecting the accuracy of our equipment. Well, there are a variety of reasons as to why Load Cell are not providing the higher level of accuracy that you would expect, with each of them being shown below.
The Precision from the Load Cell & Torque Sensors. First thing you need to be doing when you find yourself chasing accurate weighing accuracy would be to select a top quality load cell & torque sensors manufacturer. While all manufacturers will proclaim that the products offer high degrees of accuracy, just the top brands will often be able to provide you with the best accuracy.
An excellent load cell and its torque sensors will usually have good response times (how fast they provide an exact reading), is not going to react to much to temperature modifications in the environment, will never suffer with creep (a change in the reading after 2-3 minutes for being stationary), and can have suprisingly low ‘nonrepeatability’ (variations in the readings for the same load after repeated loadings).
Factors with the Load – The precision of any load cell & indicator reading may be affected by how the load is put on the weighing system. To make certain a precise reading, the load has to be put on each cell properly so when specified through the manufacturer.
If a load continues to be applied poorly, like the load being twisted, the cell and weighing system will simply throw up inaccurate results. To ensure complete accuracy when weighing, the stress needs to be placed in a manner which can be supporting all of the weight proportionally.
Outside Forces – One other reason as to why accuracy may be affected on Force Transducer is the many outside forces that might be slightly altering the load force. Wind, shock loading, vibration, and modifications in temperature can all have an effect on the true accuracy of a reading.
A cross-wind may have an effect that this load feels lighter than it actually is while shock is the method of using more load weight than the weight capacity of the cells are. Vibrations from other nearby machines could also cause fluctuations in a weight whilst temperature changes in the environment could cause materials within the load either to expand or contract.
Signal Interference – The last method by which the accuracy in the weight of the load might be affected is through interference using the signal transmission. The burden cell electrical signal may be suffer from interference fbnbjc radio frequencies, electromechanical interference, as well as moisture in the air can cause interference for the electrical signal.
So in order to ensure that Multi Axis Load Cell are as accurate as is possible; you ought to be well aware of precisely what could affect that accuracy and place measures in place to stop those occurrences from happening. Just use the very best manufacturers of load cells & torque sensors leading brands, load them correctly, make certain that outside forces are limited, which there is very little probability of signal interference.