What are the types and advantages of electric heaters
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What are the types and advantages of electric heaters
Whether in industrial production or scientific research experiments, electric heaters are a type of heating and insulation equipment that is frequently used. During their processing, strict control of temperature rise and fall is often required. With the advancement of computer technology, the temperature control technology of electric heating has also made great progress.
The control system of electric heaters can be divided into two categories. One is the hybrid control method, which requires the electric heater to be connected to the control system before control can be carried out. Relatively speaking, the system composition of this control method is relatively complex, and the cost required is also relatively high.
On the other hand, due to the many changes in the output channel of the electric heater, especially after the replacement of analog signals, nonlinearity is more severe, resulting in poor anti-interference performance and low control accuracy. Other than that, this control method is also relatively unreliable and presents problems simply.
Another type is pure computer control, and the control method for electric heaters is completely different. It eliminates links such as D/A switching, voltage signal expansion, and power frequency high-voltage pulse signal switching at its output end. It directly uses TTL level pulse signal to control the on/off of the solid-state relay, and the solid-state relay controls the on/off of the electric heater, greatly simplifying the control process of the electric heater.
Not only that, but it also overcomes the shortcomings of a control method and fully leverages the advantages of computer technology, allowing electric heaters to not only reduce costs with high radiation, but also significantly improve control accuracy. In addition, its anti-interference function and reliability are also more guaranteed, which is the foundation for the safe, efficient and stable operation of electric heaters.
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