The manufacturer of load cell talks about the basic requirements of its elastomer
One important part of the load cell is the elastomer. Therefore, when choosing a load cell, we must check the performance of the elastomer. Let's take a look at the footsteps of the load cell manufacturer.
The types of sensors used in general mechanical equipment are diverse, but the load cells are more commonly used.
Because of its simple structure, linearity and stability, and high output accuracy, it is getting more and more attention from major manufacturers in reality. The sensitive component used is an elastic test component, and the body is an elastomer. The structural shape and size of the elastomer have a great influence on the performance of the load cell.
If the elastomer design of the load cell is unreasonable, it is difficult to achieve high force measurement performance despite its high processing precision and good quality of the attached resistance strain gauge.
Therefore, the structural form of the elastomer is critical in the selection of the load cell.
What are the two major requirements that the load cell's elastomer must meet during the selection process?
1. The patch part needs to have a high stress level, which can reflect the force of the component in time.
2. The stress of the patch part should maintain a corresponding relationship with the measured force, and the deformation of the real tested component can be monitored at any time.
In order to meet the above two requirements, in the selection of elastomer components of load cells, it is often necessary to use the principle of “stress concentration” to ensure that the stress (strain) level of the patch is high and is strictly controlled with the measured force. Corresponding relationship, thereby improving the force sensitivity and force measurement accuracy of the designed load cell.
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