Cantilever beam load cell and shear beam load cell have the following differences：
1. Structural features
**Cantilever beam load cell**
- Usually a cantilever structure is adopted, with one end fixed and the other end subjected to force.
- From the appearance, there is a relatively long cantilever beam, whose fixed end is connected to the installation foundation, and the loading end is subjected to external force.
- For example, in some small electronic scales, the cantilever part of the cantilever beam weighing sensor is relatively obvious, and its length and width are designed according to the specific range and accuracy requirements.
**Shear beam load cell**
- Its structure is based on the shear stress principle and is usually composed of two parallel elastic beams above and below.
- It is connected in the middle by a special shear structure. When external force acts, the shear structure will produce corresponding shear deformation.
- The overall shape is relatively regular, mostly columnar or square, and the installation method is relatively flexible.
2. Force application method
**Cantilever beam weighing sensor**
- The force mainly acts on the end of the cantilever beam, and the magnitude of the external force is sensed by the bending deformation of the cantilever beam.
- For example, when an object is placed on a scale plate connected to a cantilever beam, the weight of the object will cause the cantilever beam to bend, and the strain gauge of the cantilever beam will sense this deformation and convert it into an electrical signal.
**Shear beam weighing sensor**
- External force is applied to the top or side of the sensor, causing shear stress in the shear structure inside the sensor.
- This shear stress will cause strain changes inside the elastic body, and the magnitude of the external force can be measured by the strain gauge. For example, in a large truck scale, the weight of the vehicle is transmitted to the shear beam weighing sensor through the scale platform, causing shear deformation inside the sensor.
3. Accuracy
**Cantilever beam weighing sensor**: It has high accuracy in a small range and is suitable for small weighing equipment with high accuracy requirements. For example, in some precision balances used in laboratories, cantilever beam weighing sensors can accurately measure small weight changes.
**Shear beam weighing sensor**: It shows good accuracy in a medium to large range and can meet the accuracy requirements for weighing medium and large objects in industrial production. For example, in a large cargo weighing system in a warehouse, a shear beam weighing sensor can measure the weight of the cargo more accurately.
4. Application Scenarios
**Cantilever beam weighing sensor**
- Commonly used in small weighing equipment such as electronic scales, counting scales, and packaging scales. For example, the electronic pricing scales in supermarkets, cantilever beam weighing sensors can quickly and accurately measure the weight of goods, which is convenient for customers to settle accounts.
- Used for weighing and counting small items on some automated production lines to ensure product quality and production efficiency.
**Shear beam weighing sensor**
- Widely used in large or medium-sized weighing equipment such as truck scales, hopper scales, and track scales. For example, in the container weighing system at the port, the shear beam load cell can bear the weight of large containers and provide accurate weighing data.
- In the hopper weighing system in industrial production, the shear beam load cell can monitor the weight change of materials in real time to achieve precise batching and production control.
Post time: Aug-13-2024
