What are the industrial automation instruments? Introduction to the Types of Industrial Automation Instruments
Industrial automation instrument is an instrument that detects, displays, records or controls process parameters in the industrial production process, also known as the instrument that detects, displays, records or controls process parameters, or (industrial) process detection and control instrument.
1、 Working principle of industrial automation instrument
The industrial instrument can automatically complete the work of measurement, recording and control under the condition of unmanned operation. In addition, industrial instruments can also be used to realize remote information transmission and data processing.
2、 Types of industrial automation instruments
Although there are many kinds of industrial instruments, they are all based on the principle of balance, including force balance, torque balance and electric balance. The sensing part of the instrument - the sensor converts the measured parameters (such as temperature, pressure, flow, etc.) into easily amplified measurement quantities (such as voltage, current, mechanical quantities, etc.) through the transmitter, and then amplifies them. The magnified quantity value is transmitted to the display part and compared with the measured quantity through the feedback part to achieve the purpose of balance.
There are many kinds of industrial instruments. According to the parameters of the measured production process, they are temperature measuring instruments, pressure measuring instruments, flow measuring instruments, material level measuring instruments, mechanical quantity measuring instruments, process analysis instruments, etc; Industrial instruments can be divided into detection instruments, display instruments, regulating instruments, etc. according to their functions in the industrial production process.
The detection instrument is mainly used to detect the parameters of industrial production process, such as temperature, pressure, flow, material level and mechanical quantity, and sometimes has the function of recording and adjusting; The display instrument displays the output signal of the detection instrument for observation, which is used together with the detection instrument, transmitter and sensor. It can be divided into analog display instrument, digital display instrument and character image display instrument according to the display mode; The regulating instrument is also called regulator. Its function is to compare the measured parameters and the set parameters in the production process, and then send the regulating signal to the actuator according to a certain regulation law.
The regulating instrument can be divided into intermittent regulator and continuous regulator according to different regulating modes; According to the structure, it can be divided into base type, unit combination type and assembly type; According to working energy and medium, it can be divided into self powered, electric, pneumatic and hydraulic. Some regulating instruments also have detection and display parts.
