my country’s industrial sensors have seven accuracy levels, 0.1, 0.2, 0.5, 1.0, 1.5, 2.5, and 5.0. And marked on the scale or nameplate of the instrument, the accuracy of the instrument is habitually called the precision, and the accuracy level is habitually called the precision level.

Measurement sensor basic error: The basic error, also known as the reference error or the relative error, is a simplified relative error.

7 performance indicators: linearity, sensitivity, hysteresis, repeatability, drift, resolution, threshold.

In industrial measurement, in order to express the quality of the instrument, the accuracy level is usually used to indicate the accuracy of the instrument. The accuracy level is the maximum reference error minus the plus, minus and percent signs.

Edit: hfy

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