The greater the accuracy grade value, the higher or lower the accuracy?

The greater the accuracy grade value, the lower the accuracy.

The accuracy grades of industrial instruments in China are: 0.005, 0.02, 0.05, 0. 1, 0.2, 0.35, 0.4, 0.5, 1.0, 1.5, 2.5, 4.0, etc. ? The smaller the series, the higher the precision (accuracy).

Accuracy grades of detection instruments and display instruments for industrial process measurement and control

Have: 0.0 1, 0.02, (0.03), 0.05, 0. 1, 0.2, (0.25), 0.3, (0.4), 0.5, 1.0,/kloc-

; *** 16.

Five in brackets are not recommended. This standard is GBT 13283-2008 Accuracy grade of measuring instruments and display instruments for industrial process measurement and control.

Extended data

Accuracy can be divided into:

1. Accuracy indicates the consistency between the measured results and the true values, and it reflects the synthesis of systematic errors and random errors in the measured results. Its quantitative characteristics can be expressed by measurement uncertainty (or limit error);

2. Accuracy indicates the degree to which the measurement results are consistent with each other when measured many times under certain conditions, which reflects the influence of random errors in the measurement results;

3. Accuracy indicates the degree of systematic errors in the measurement results and reflects the synthesis of all systematic errors in the measurement results under specific conditions.

Under normal use conditions, the accuracy of instrument measurement results is called the accuracy of instrument. The smaller the reference error, the higher the accuracy of the instrument, and the reference error is related to the measuring range of the instrument, so when using instruments with the same accuracy, the measuring range is often compressed to reduce the measuring error.

Baidu Encyclopedia-Accuracy Level