The whole point of 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 is 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 shown below.
The Accuracy in the Load Cell & Torque Sensors – The first thing you need to be doing if you are chasing accurate weighing accuracy is to select a top quality multi axis force sensor manufacturer. While all manufacturers will proclaim their products offer high degrees of accuracy, only the top brands will usually have the ability to deliver the best accuracy.
A great load cell as well as its torque sensors will generally have good response times (how fast they offer an accurate reading), is not going to react to much to temperature changes in environmental surroundings, will not suffer from creep (a change in the reading after 2-3 minutes of being stationary), and will have really low ‘nonrepeatability’ (variations in the readings for the same load after repeated loadings).
Factors using the Load – The accuracy of a load cell & indicator reading can be impacted by the way the load is placed on the weighing system. To ensure an exact reading, the burden has to be placed on each cell properly so that as specified through the manufacturer.
If a load continues to be applied poorly, such as the load being twisted, the cell and weighing system will only throw up inaccurate results. To make sure complete accuracy when weighing, the stress needs to be placed in a manner which can be supporting all the weight proportionally.
Outside Forces – One more reason as to why accuracy could be affected on torque sensor will be the many outside forces that might 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 can have an effect that the load feels lighter than it actually is while shock is the method of wearing more load weight than what the weight capacity in the cells are. Vibrations off their nearby machines dzrgzs also cause fluctuations in a weight whilst temperature alterations in the environment can cause materials inside the load either to expand or contract.
Signal Interference – The final way in which the accuracy of the weight of any load could be affected is thru interference using the signal transmission. The stress cell electrical signal can be suffer with interference from radio frequencies, electromechanical interference, as well as moisture inside the air could cause interference towards the electrical signal.
Summary – So in order to ensure that load cell are as accurate as you can; you ought to be well aware of precisely what could affect that accuracy and put measures set up to prevent those occurrences from happening. Simply use the very best manufacturers of load cells & torque sensors leading brands, load them correctly, make sure that outside forces are limited, and this there is very little probability of signal interference.