The classification of measurement can be divided into three categories from a macro perspective: scientific measurement, engineering measurement, and legal measurement. 1. Scientific measurement Scientific measurement refers to basic, explor

The reading method of the dial indicator is: first read the tick mark rotated by the small pointer (ie, the millimeter integer), then read the tick mark (that is, the decimal part) rotated by the large pointer, and multiply by 0.01, then add the two, that

1. Measurement verification and calibration are measurements that meet certain requirements. It is a detection activity used to verify the degree of deviation (……

This article describes the definition, principle and various measurement methods of pH acidity meter; the general classification of pH acidity meter. It is mainly for the analysis of the pH acidity meter and sensor principle which are used in the market a

With the advancement of science and technology, humans use the physical effect of quantum transitions to take the frequency of electromagnetic waves radiated by atoms of a substance between specific energy levels as a standard frequency, and use time to d

The number of words used in capitalization has been used in the Republic of China since ancient times. After liberation, some accounts were gradually changed to Arabic numerals. Then, when did the use of capitalized numbers originate? In the early

The reason for measuring the cheating of electronic scales: the market consists of complex subjects, and the quality of employees is uneven. Some market sponsors have not implemented their own main responsibilities and management, and some individual vend

The principle of "path dependence" in economics means that when you make your first choice, the future path is irreversibly determined. An example that best illustrates the principle of "path dependence" is the rail gauge. The rail gau

Biometrics is a new field of science that has developed in recent years. The development of biometrics is to support the comparability, effectiveness and traceability of biometrics, and ultimately to make measurements traceable to the International System