The whole 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 number of reasons as to why Load Cell are not providing the high level of accuracy that you would expect, with each of them being listed here.
The Accuracy in the Load Cell & Torque Sensors. The very first thing you ought to be doing when you are chasing accurate weighing accuracy is always to pick a excellent load cell & torque sensors manufacturer. While all manufacturers will proclaim their products offer high amounts of accuracy, only the top brands will often have the capacity to deliver the best accuracy.
A good load cell along with its torque sensors will generally have good response times (how rapidly they provide an accurate reading), will not react to much to temperature modifications in the environment, will not suffer from creep (a change in the reading after 2-3 minutes for being stationary), and definately will have really low ‘nonrepeatability’ (differences in the readings for the similar load after repeated loadings).
Factors with the Load – The accuracy of the load cell & indicator reading can be affected by just how the load is placed on the weighing system. To make certain an exact reading, the load needs to be placed on each cell properly so that as specified from the manufacturer.
If a load continues to be applied poorly, such as the load being twisted, the cell and weighing system will simply throw up inaccurate results. To make sure complete accuracy when weighing, the load must be placed in a manner which are supporting all of the weight proportionally.
Outside Forces – One more reason why accuracy may be affected on Inline Load Cell is the many outside forces that could be slightly altering the body weight force. Wind, shock loading, vibration, and changes in temperature can all have an effect on the true accuracy of a reading.
A cross-wind may have an effect the load feels lighter than it actually is while shock is the method of wearing more load weight than what the weight capacity from the cells are. Vibrations off their nearby machines could also cause fluctuations in a weight whilst temperature alterations in the environment could cause materials within the load to either expand or contract.
Signal Interference – The last way in which the precision from the weight of any load could be affected is via interference using the signal transmission. The stress cell electrical signal can be suffer from interference fbnbjc radio frequencies, electromechanical interference, and also moisture inside the air could cause interference for the electrical signal.
So in order to ensure that 3 Axis Load Cell are as accurate as is possible; you ought to be knowledgeable of just what could affect that accuracy and set measures set up to avoid those occurrences from happening. Just use the best manufacturers of load cells & torque sensors leading brands, load them correctly, ensure that outside forces are restricted, which there is little chance of signal interference.