The reason why the measurement error of precision resistance is greater than the color code error

Precision resistance measurement is a crucial part of the manufacturing and maintenance process of electronic devices. However, sometimes we may find that the error in precision resistance measurement is even greater than the color code error. The main reasons for this are as follows:

Quality issues with raw materials may lead to increased measurement errors in precision resistors. If the resistance materials used in the production process are not rigorously screened and inspected, their resistance values may deviate from the nominal values, thereby affecting the accuracy of the measurement results

The accuracy and stability of measuring equipment are also important factors that cause errors. If the accuracy and stability of the measuring instruments used are not high enough, it will lead to measurement errors, resulting in precision resistance measurement errors greater than color code errors

Environmental factors may also have an impact on precision resistance measurement. For example, changes in temperature and humidity can have an impact on resistance values, thereby affecting the accuracy of measurement results. Therefore, when conducting precision resistance measurements, it is necessary to maintain constant temperature and humidity environmental conditions as much as possible to reduce the generation of errors

The reason why the precision resistance measurement error is greater than the color code error is mainly due to the comprehensive effect of various factors such as raw material quality, measurement equipment accuracy, and environmental factors. To ensure the accuracy of measurement results, we need to strengthen quality control and pay attention to the impact of environmental factors during production and measurement processes, in order to minimize the occurrence of errors