The entire reason for having a load cell & torque sensor is to be able to weigh your loads adequately and accurately, so when they are not giving us the accuracy that we expect, it leaves us wondering just what could be affecting the precision of our equipment. Well, there are a number of reasons as to why your load cell & torque sensors are not providing the high level of accuracy that you would expect, with each of them being listed here.
The Precision in the Load Cell & Torque Sensors – First thing you should be doing when you find yourself chasing accurate weighing accuracy is always to select a high quality multi axis force sensor manufacturer. While all manufacturers will proclaim their products offer high levels of accuracy, only the top brands will often be able to deliver the best accuracy.
An excellent load cell and its torque sensors will normally have good response times (how fast they give a precise reading), is not going to react to much to temperature alterations in environmental surroundings, will never suffer with creep (a modification of the reading after 2-3 minutes to be stationary), and can have very low ‘nonrepeatability’ (variations in the readings for the same load after repeated loadings).
Factors with the Load – The accuracy of a load cell & indicator reading may be affected by how the load is positioned on the weighing system. To make certain a precise reading, the stress has to be placed on each cell properly and as specified by the manufacturer.
In case a load has been applied poorly, like the load being twisted, the cell and weighing system is only going to throw up inaccurate results. To make sure complete accuracy when weighing, the load has to be placed in such a way which can be supporting each of the weight proportionally.
Outside Forces – One more reason as to the reasons accuracy could be affected on torque sensor will be the many outside forces that could be slightly altering the load force. Wind, shock loading, vibration, and alterations in temperature can all have an effect on the true accuracy of any reading.
A cross-wind might have an effect that the load feels lighter than it actually is while shock is the process of using more load weight than the load capacity in the cells are. Vibrations from other nearby machines dzrgzs also cause fluctuations in a weight whilst temperature changes in environmental surroundings can cause materials inside the load either to expand or contract.
Signal Interference – The ultimate manner in which the accuracy of the weight of the load might be affected is thru interference using the signal transmission. The stress cell electrical signal may be suffer with interference from radio frequencies, electromechanical interference, and also moisture inside the air could cause interference towards the electrical signal.
Summary – So in order to ensure that miniature 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 avoid those occurrences from happening. Simply use the most effective manufacturers of load cells & torque sensors leading brands, load them correctly, make certain that outside forces are limited, and this there is very little probability of signal interference.