We often encounter the accuracy problem of measurement sensors. Can the accuracy of sensors be calculated by theoretical and numerical calculation?

The accuracy algorithm of the sensor is generally, accuracy = absolute value of the maximum allowable error / full range measurement range X100%. Moreover, the calculation result is not the error value of a single measurement, but the absolute value of the maximum error compared with the full scale.

Measurement error is inevitable in any measurement process. Large error means that the measurement result is far from the true value and the accuracy is low; On the contrary, the error is small and the precision is high. Any measurement result can only be an approximate value of the true value of the element.

There are many factors affecting the measurement accuracy of the sensor, and the resolution, linear error and temperature drift are the characteristics that the sensor itself has and can not be removed. Usually, when the temperature changes little, the value of resolution and temperature drift is much less than the linear error, so many people regard the linear error as the measurement accuracy of the sensor.

Editing: hfy


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