Classification of instruments

Instrument classification standard

Instrument is a variety of science and technology integrated product, variety, widely used, and constantly updated, there are a variety of classification methods. According to the purpose and use, Mainly include measuring instrument, automotive instrumentation, tractors, instrumentation, Marine navigation instrument, aviation instrument, instrument, driving device, radio test instrument, carrier microwave test equipment, geological exploration and test equipment, construction materials testing instruments, seismic instrument, geodetic surveying and mapping instruments, hydrological instruments, chronometric instruments, agricultural, commercial testing instrument testing instruments, teaching instrument, medical instrument, Environmental protection instruments, etc.

Instruments instruments

Belongs to the mechanical instrument of industrial products are industrial automation instrument, electrical instrumentation, optical instruments, analytical instruments, laboratory instruments and equipment, material testing machine, weather, dark the instrument, the film machinery, photography, copy miniature mechanical components, instruments and meters, instruments and meters, materials, instruments and meters process equipment such as three categories. They are versatile, large batch, or necessary for the instrument industry.

Instrument feature classification

All kinds of instruments according to different characteristics, such as function, detection control object, structure, principle can also be divided into a number of subclasses or subclasses. Such as industrial automation instruments according to the function can be divided into detection instruments, loop display instruments, regulating instruments and actuators; According to the measured physical quantity, testing instruments are divided into temperature measuring instruments, pressure measuring instruments, flow measuring instruments, material level measuring instruments and mechanical quantity measuring instruments; Temperature measuring instruments are divided into contact thermometer table and non-contact thermometer table according to the measurement method; Contact thermometer table can be divided into thermoelectric, expansion, resistance and so on.

Other categories of instruments

The classification of other instruments is generally similar, mainly related to the development process, usage and product classification. There is no unified standard for the classification of instruments, and a similar situation exists in the naming of instruments.

In real practice, we often instruments can be divided into two broad categories: automation instrument and portable instruments and meters, automation instrument refers to be fixed installation in the field of instrument, also known as on-site installation instrument or dial instrument installation, this kind of instrument and other equipment, in order to achieve one or several functions; Portable instruments and meters are used alone, sometimes called testing instruments and meters, generally divided into desktop and handheld two.

There is also a classification of instruments, called primary instrument and secondary instrument. Primary instrument refers to the part of the sensor that directly feels the measured signal, and secondary instrument refers to the part that amplifies, displays and transmits the signal.