Basic parameters of load cells – ifm

Create Date: 2024-8-30 12:03:23|Source: IFM/ifm

A load cell (also known as a load cell) is a type of sensor that converts a physical force signal into an electronic signal. From the basic principle, it is divided into strain type, piezoresistive type, piezoresistive type, foot type, etc.

                              Basic parameters of load cells – ifm

Non-repeatability: The large difference in the output of the sensor when the same weight is repeatedly loaded in the same environment, which is generally expressed as a percentage of the additional output. Additional range: The sensor is planned to measure the maximum value within the scale of the parameters indicated to the satisfaction.

Sensitivity coefficient: The output of the sensor at full-scale load, generally expressed as:

Zero-balance: The output of the sensor under no load.

Hysteresis: The large difference between the "force (incremental)-output" curve of the sensor and the "force (decreasing)-output" curve at the same load, generally indicating the percentage of additional output of the station.

Nonlinearity: The large difference between the actual "force (incremental)-output (mV/V)" curve of the sensor and the straight line connecting the zero output (mV/V) and the extra output (mV/V) of the sensor, generally expressed as a percentage of the additional output.

Creep: The change of the output of the sensor with the same load in the same environment, generally indicating the change in the output for 30 minutes of full-scale loading as a percentage of the additional output.

Compensation Temperature Scale: Within the compensation temperature scale, the additional output and zero equilibrium do not exceed the indicated range.

Operating temperature scale: Within the operating temperature scale, the temperature will not have a negative impact on the parameters of the sensor.

Safe Overload: A large load that is promised to be applied without offsetting the sensor parameters. It is usually expressed in the form of a share of additional range (e.g., 150% of F.S.)

Ultimate overload: The promised increase in weight without causing mechanical damage to the sensor. Indicated in the form of shares of additional ranges.

Zero Temperature Drift: The zero output is affected by a change in temperature.

Sensitivity Temperature Drift: Sensitivity (extra output) is affected by temperature changes.

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