Function: Electric pressure execution Sensor automatic control can be divided into intermittent control and continuous control. Electrical pressure executes sensor intermittent control, that is, sensor control. In the pneumatic control system, the directional valve of the sensor formula (on-OFF) with a lower action frequency is used to control the interruption of the air path. Relying on the pressure reducing valve to regulate the required pressure, rely on the throttle valve to adjust the required flow. If this traditional pneumatic control system wants to have multiple output force and multiple movement speeds, multiple pressure decompression valves, throttle valve and directional valve are required. In this way, not only the components are needed, the cost is high, it constitutes the complicated system, and many components need to be manually adjusted in advance. The electrical pressure execution sensor control belongs to continuous control, which is characterized by changes in the output volume with the input volume (current or voltage value), and there is a certain proportion relationship between the output and the input volume. The proportional control has the division of opening control and closed -loop control. Closed -loop control a signal feedback system.
Principles: Electric pressure executes sensor input signals to increase, gas supply electromotor valve pilot valve 1 is changed, and the exhaust electromagnetic pilot valve 7 is in a reset state, the gas supply pressure enters the pilot room through the valve 1 through the SUP port. 5. The pressure of the pilot room is rising, and the gas pressure is acting above the diaphragm 2. The air supply valve core 4 connected to the diaphragm 2 is turned on. The exhaust valve core 3 is closed to generate output pressure. This output pressure is fed to the control circuit 8 through pressure sensor 6. Here, quickly compare the target value until the output pressure and the input signal become a certain proportion, so as to obtain the change in the proportion of the output pressure and the input signal. Since there is no nozzle baffle mechanism, the valve is not sensitive to impurities and high reliability.
Features:
1. Electric pressure executes sensors can achieve pressure and speed of the pressure and speed, avoiding the impact phenomenon of Changtong's sensor air valve when replacing the direction.
2. Electric pressure executes sensor transmission capacity to achieve remote control and program control.
3. Compared with the control of electrical pressure execution sensors, the system simplifies and components are greatly reduced.
4. Electric pressure executing sensors The volume, light weight, simple structure, and low cost, but the response speed is much slower than the hydraulic system, and it is also sensitive to load changes.
5. Electric pressure executes the sensor with low power, less heat, and low noise.
6. Electrical pressure execution sensors will not cause fires and do not pollute the environment. Affected by temperature changes is small.
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