Which sensors are included in the load cell?

This article is edited by Shenzhen Huanan Hengtai Industrial Co., LTD., if reproduced, please indicate the source
Weighing sensor is a device that converts the weight of an object into a measurable electrical signal output, which is widely used in various fields such as industrial production, transportation, healthcare, agriculture and so on. The following is a summary and explanation of the main types of load cells:
1. Classification by conversion method:
- Resistance strain gauge sensor: The resistance strain gauge is deformed when subjected to external force, resulting in a change in resistance value, which is converted into an electrical signal.
- Electromagnetic force balance sensor: Based on the ampere force principle, the electromagnetic force generated by the current is balanced with the gravity of the object, and then the weight of the object is measured.
Capacitive sensors: convert the measured mechanical quantity such as pressure and displacement into capacitance changes, which are then converted into electrical signals.
- Photoelectric sensor: including grating type and code disk type, through the moire stripe formed by the grating or code disk encoding to convert the object quality information into electrical signals.
- Hydraulic sensor: The hydraulic oil pressure is proportional to the gravity of the measured object, and the mass of the object is obtained by measuring the oil pressure.
- Magnetic pole variable form sensor: using the magnetic permeability change caused by the deformation of the ferromagnetic element under the action of gravity, and then measuring the voltage change to determine the mass of the object.
Vibration sensor: Use the change of natural vibration frequency after the elastic element is stressed to measure the quality of the object.
Gyro ritual sensors: Although not explicitly mentioned in the reference article above, gyroscopic sensors may also be used for specific weighing applications, such as high-precision measurements.
- Resistance strain gauge sensor: the resistance strain gauge is tightly bonded to the matrix by a special adhesive. When the matrix is forced to deform, the strain gauge deforms at the same time, which changes the resistance value of the strain gauge and converts it into an electrical signal.

2. Classification according to structural form:
- Cantilever beam type, bridge type, S type, box type, column type, etc., these different structural forms correspond to different application scenarios and measurement requirements.

3. Classification by material:
- Alloy steel, aluminum alloy, etc., the choice of different materials depends on the sensor's working environment, accuracy requirements and cost factors.

When choosing a weighing sensor, it is necessary to consider the actual application environment, measurement accuracy, cost and other factors to ensure that the sensor can work normally and meet the requirements of use.



The above information is for reference only, not for professional literature