Tape test machine
The main characteristic mini tape measure of benchmark measuring instruments:
1 in accordance with or close to the measuring unit according to the basic principle of definition.
2 has a good reproducibility and defined to realize keep or repetition measurement units or its multiples or scores with contemporary or its high precision.
3 stable performance measurement characteristics unchanged for a long time.
4 can be defined to realize maintain or keychain tape measure repetition of the measuring unit or its multiples or score passed on by a certain method or means.
(2) standard of measurement
Measurement standard refers to the amount of repetition in order to achieve defined save or unit or one or more of the value is used as the reference material measure. Measuring instrument standard substances or measurement system
Our habits as a benchmark is higher personalized tape measure than the standard letter, this is from features to consider various measurement standard of measurement must be directly or indirectly accept the national benchmark dissemination and cannot close on its own.
(3) the common measuring instruments
The common measuring instruments refers to the general measuring instruments used in daily work it can obtain a quantitative measurement results.
Classification management has taken A prominent key, both the general management method, steel ruler according to the actual situation and the main technical requirements of the product and the characteristics of the commonly used measuring instruments low-value, measuring instruments are divided into A, B, C three kinds of management.
