What kind of national standards can verify the competence of the measurement system

Summary. Kiss <>

Hello, we are happy to answer your questions about the suitability verification of the measuring equipment, including accuracy verification: verifying that the difference between the measurement results of the equipment and the standard value is within the allowable range, linearity verification: verifying that the linear relationship of the device within its range is appropriate, and repeatability verification:

Verify that the results of repeated measurements of the device are consistent under the same measurement conditions, and qualitative verification: verify that the device remains stable after a long period of use.

What does the suitability verification of a measuring device involve?

Kiss <>

Hello, we are very happy to answer the question of whether the suitability verification of the measuring equipment includes accuracy verification: verifying whether the difference between the measurement results of the equipment and the standard value is within the allowable range, linearity verification: verifying whether the linear relationship of the equipment within its range is appropriate, repeatability verification:

Verify whether the results of repeated measurements of the equipment are consistent under the same measurement conditions, and qualitative verification: Verify whether the equipment remains stable after long-term use.

Kiss <>

A general term for measuring instruments, measuring standards, reference materials, auxiliary equipment, and materials necessary for carrying out measurements. Equipment used to make measurements of one or several classes of quantities. In telecommunication technology, it refers to the equipment used to measure various electrical, magnetic, and optical parameters or to generate test signals, and the measuring equipment refers to a general term for measuring instruments, measurement standards, reference materials, auxiliary equipment, and materials necessary for measurement.

It is referenced from the 1S0 10012 1 standard in the implementation of the ISO 9000 standard, which not only includes the above, but also the measurement equipment used in the test and inspection process, as well as the calibration (verification). It does not refer to a specific device or type of equipment, but rather a general term for the hardware and software included in the measurement.

Four Answers: Which is right: 1. Verification or calibration, 2. Correction of measurement results, 3. Comparison of metrological characteristic results with derived requirements, 4. Evaluation of use conditions.

Kiss <>

The four answers are all methods of verifying the suitability of the measurement equipment, depending on what equipment you are using and in what environment.

Kiss <>

I understand whether it is to choose from the four that come, and the 2 is right, because 2 is right, and 2 is the repeatability verification.

The criterion should be uncertainty.

Typically, the result uncertainty of the measurement (total uncertainty) is used.

The judgment principle is that the measured synthetic uncertainty is less than or equal to one-third to one-tenth of the measurement requirement.

Some measurement systems are based on standard uncertainty.