The whole point of having a load cell and torque sensor is that it can weigh your load correctly and accurately, so when they do not give us the accuracy we expect, we are stumped on what could affect their accuracy?
Well, there are several reasons why your load cell and torque sensors do not provide the high level of accuracy that you would expect, each of which is listed below.
When looking for weight accuracy, the first thing to do is choose high-quality
. Although all manufacturers will declare that their products offer a high degree of precision, only the best brands will generally provide the best accuracy.
A suitable load cell and its torque sensor will generally have good response times, will not react much to temperature changes in the environment, will not change its reading after being stationary for a couple of minutes, and there will be very little difference in readings for the same load after repeated loading.
The accuracy of a load cell and indicator readings can be affected by how the system places the load. To ensure an accurate reading, apply load into each cell correctly and as specified by the manufacturer.
The cell and weighing system will return incorrect results if a load is applied incorrectly, such as a lopsided load. To ensure total accuracy when weighing, the load must be kept to support all weights in proportion.
Another reason that can affect the accuracy of load cell and torque sensors is that many external forces can slightly change the force of the weight, such as wind, vibrations, temperature, and shock loading can affect the accuracy of the reading.
The crosswind effect can be significant, and the load can feel much lighter than it is, while shock loading means suddenly loading more weight than the capacity of the cells. Vibration from other machines nearby can also cause weight fluctuations, while a change in temperature in the environment can cause the loaded material to expand or shrink.
The last factor that can affect the accuracy of the weight is interference in the transmission of the signal. Radio frequencies, electromechanical interference, and even humidity in the air can affect electrical signals from load cells.
Therefore, to make sure your load cell and torque sensors are as accurate as possible, you need to be aware of the things described above and how they can impact the accuracy of your load cell and torque sensor and take steps to prevent it from happening.
A great tip is to use sensors from only the best manufacturers of well-known brands, load them as directed, make sure that external forces are limited, and ensure minimal possibility of signal interference.