The main content of error theory

The main elements of error theory are: definition of error, sources of error and classification of error.

Error is an experimental science term for the degree to which a measurement deviates from its true value. Mathematically, the difference between the measured value or other approximation and the true value is called the error. Error theory is the study of experimental error in the case of a theory, error theory is an indispensable and important theoretical basis for testing technology instrumentation and engineering experiments and other fields, it plays an important role in science and production practice.

Error theory is the study of experimental error in a theory, error theory is an indispensable and important theoretical basis for testing technology, instrumentation and engineering experiments and other fields, it plays an important role in science and production practice, and therefore by the general attention and get a rapid development of the plea with the modernization of the automation and high-precision testing technology continues to appear.

The theory and method of data processing of test results to a high level of development, and become the core of the problem of error theory from the classical era to modernize the development of new levels of stage, and gradually formed a new concept of modern error theory. The application of error theory and research, has experienced 200 years of history, it is accompanied by production and science and technology and parallel development.

The overall process can be divided into two stages of classical error theory and modern error theory, the classical error theory based on strict statistical theory, mainly limited to a series of random error as the object of a series of data processing methods The development of modern science and technology, exposing its many deficiencies modern error theory is based on the principle of combining the traditional theory and modernization of the theory and practice.

Error theory truth:

1, the theoretical truth: a quantity with a strictly defined theoretical value is usually called the theoretical truth.

2, the agreed true value: according to the International Committee of Weights and Measures adopted and issued by the definition of a variety of physical parametric units, the use of today's most advanced scientific and technological reproduction of these physical units of reference, the value of which is recognized as the international or national benchmarks, known as the agreed true value.