What Is a Benchmark Error?

Reference error

Right!

The measuring instruments, equipment and measuring tools we use everyday cannot be directly compared with the national standards one by one, but the value is transmitted step by step through a multi-level measurement verification network to ensure the unity and accuracy of the country's value. In the process of transmitting the magnitude, how to correctly estimate the transmission error has always been a concern of everyone. It refers to the position error of the working surface relative to the process reference due to workpiece positioning.

Fiducial error
The difference between the measured value of the analyzer and the agreed true value of the standard gas is the error of the analyzer. The uncertainty of the standard gas is ignored or incorporated in the error of the analyzer. The ratio of the analyzer's error to the specified agreed true value is called the reference error or basic error, such as "several percent of the range FS". Sometimes it is customary to consider the reference error to remove the percent sign as the accuracy level of the analyzer. The current technical standards have eliminated the traditional technical concept of basic error.