The magnification of the load cell refers to the relationship between the signal output by the sensor and the measured signal, which is usually expressed as a multiple of the output signal. The calculation method of the load cell magnification can vary depending on the type of sensor and the amplification circuit.
In general, the magnification of a load cell can be calculated by following these steps:
1.Determine the sensitivity of the sensor. Sensitivity refers to the relationship between the signal output of the sensor and the measured signal, which is usually expressed as the input signal corresponding to the unit output signal. For example, if the sensitivity of the sensor is 10mV, it means that when the input signal is 1V, the output signal is 10mV.
2.The magnification of the sensor is calculated based on the magnification of the amplification circuit. The amplification factor of the amplifier circuit refers to the relationship between the output signal and the input signal, which is usually expressed by the ratio of the output signal to the input signal. For example, if the amplification factor of the amplifier circuit is 10x, it means that when the input signal is 1mV, the output signal is 10mV.
3.The sensitivity of the sensor is multiplied by the magnification of the amplification circuit to obtain the magnification of the load cell. For example, if the sensitivity of the sensor is 10mV and the amplification of the amplifier circuit is 10x, the magnification of the load cell is 100mV.
It should be noted that different types of load cells and amplification circuits have different calculation methods and formulas, and the specific calculation methods need to be queried and calculated according to the actual situation. At the same time, in order to ensure the measurement accuracy and stability of the load cell, it is also necessary to pay attention to the calibration and maintenance of the sensor.