What is the classification of automation instrumentation

Classification standards instrumentation is a comprehensive product of a variety of science and technology, a wide range of varieties, widely used, and constantly updated, there are a variety of classification methods. According to the use of purpose and use to points, there are mainly measuring instruments, automotive instruments, tractor instruments, marine instruments, aviation instruments, navigation instruments, driving instruments, radio test instruments, carrier microwave test instruments, geological exploration test instruments, building materials test instruments, seismic test instruments, geodetic surveying and mapping instruments, hydrological instruments, timing instruments, agricultural test instruments, commercial test instruments, teaching instruments, medical instruments, environmental protection instruments. Environmental protection instruments, etc. Product instrumentation belongs to the mechanical industry products of instruments and meters are industrial automation instruments, electrical instruments and meters, optical instruments, analytical instruments, laboratory instruments and devices, material testing machines, meteorological obscure instruments, film machinery, photographic machinery, copying and microfilming machinery, instrumentation components, instrumentation materials, instrumentation technology equipment and other thirteen categories. They are more versatile, larger batch, or for the instrumentation industry is necessary for the foundation. Characteristics of the classification of various types of instruments according to different characteristics, such as function, detection and control of the object, structure, principle, etc. can also be divided into a number of subclasses or subclasses. Such as industrial automation instrumentation can be divided into detection instrumentation, loop display instrumentation, regulating instrumentation and actuators, etc.; detection instrumentation is divided into temperature measurement instrumentation, pressure measurement instrumentation, flow measurement instrumentation, level measurement instrumentation and mechanical measurement instrumentation, etc.; temperature measurement instrumentation is divided into contact temperature instrumentation and non-contact temperature instrumentation according to the measurement method; contact temperature instrumentation can be divided into Thermoelectric, expansion, resistance, etc.. Other classifications of other types of instruments and meters are generally similar to the classification, mainly related to the development process, the use of customary and related product classification. Instrumentation in the classification is not yet a unified standard, instrumentation naming also exists in a similar situation. In reality, we often instrumentation is divided into two categories: automation instrumentation and portable instrumentation, automation instrumentation refers to the need for fixed installation in the field of instrumentation, also known as field installation instrumentation or dial installation instrumentation, this type of instrumentation needs to be used in conjunction with other equipment in order to complete a certain function or several functions; portable instrumentation refers to the use of a separate, and sometimes also called test Portable instrumentation refers to the separate use, sometimes also called detection instrumentation, generally divided into desktop and handheld two kinds. Instrumentation there is a classification, called primary instrumentation and secondary instrumentation, primary instrumentation refers to sensors such as direct contact with the measured signal part, secondary instrumentation refers to the amplification, display, signal transmission part.