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The Working Principle of Load Cells for Silos

In modern agricultural storage, load cells for silos have become an indispensable role. Load cells for silos can accurately, stably, and in real-time reflect the control process, providing strong support for various weighing needs. 


The increasing popularity of load cells for bins is not only due to the continuous improvement of sensor design technology and process technology but also relies on the continuous advancement of sensor application technology and the continuous expansion of application fields. The demand for weighing is the most common and numerous metering demand used in various sectors of the national economy.


External Force and Elastic Deformation


The core working principle of load cells for feed silos is based on the principle of elastic deformation in mechanics. When an external load is applied to the sensor, the structure of the load cells for feed bins undergoes a certain amount of elastic deformation. This deformation process is usually small and precisely controllable. The weight of the material inside the silo is directly sensed by the sensor, and the surface of the sensor undergoes slight deformation due to the applied external force.


Deformation of Resistive Strain Gauge and Change in Resistance Value


Resistive strain gauges are attached to the surface of the load cells for feed silos, and these strain gauges deform along with the sensor itself under force. A resistive strain gauge is a thin-film element made of conductive material, and its resistance value changes upon deformation. This change can either increase or decrease the resistance, depending on the direction and degree of the strain. By precisely measuring these changes, the weighing sensor can sense the load applied to the material.


Conversion and Processing of Electrical Signals


After the resistive strain gauge deforms, the change in its resistance value induces a corresponding change in current or voltage signals. The detection circuit within the load cells for feed bins can capture these tiny resistance changes and convert them into electrical signals. These electrical signals are then processed and amplified, ultimately being converted into an output signal that is proportional to the mass of the object. Through this process, the load cells for silos can accurately convert the mass of the material into an electrical signal, thereby achieving weighing purposes.


Accuracy and Stability


The accuracy and stability of load cells for silos are crucial for industrial process control. They must not only be able to accurately measure load changes but also operate stably over the long term, unaffected by environmental changes (such as temperature, humidity, etc.). To enhance performance, modern load cells for bins employ advanced anti-interference technology and are calibrated and optimized multiple times to ensure high accuracy in complex environments.


In conclusion, load cells for silos are not just weighing tools but also key components in intelligent production systems. They ensure the precision and reliability of material weighing through the accurate principle of resistive strain. With the advancement of technology and the growth of market demand, load cells for silos will demonstrate their immense potential in more fields.

WitGood Intelligent Silo Weighing Products
1611- 15 Fort York Blvd,
Toronto, ON M5V 3Y4
Canada
info@swttech.com
1-437-268-7072