The research of automatic control technology is conducive to liberating humans from the complicated, dangerous and tedious working environment and greatly improving the control efficiency. Automatic control is a branch of engineering science. It involves the automatic effect on the dynamic system using the principle of feedback to make the output value close to the value we want.
Industrial automation is the trend of widely using automatic control and automatic adjustment devices in industrial production to replace manual operation of machines and machine systems for processing and production...
MoreMagnets are widely used in audio system. Magnets are the key parts to these kinds of commodities. It provides a permanent magnetic field for the coil in the system, rapidly alternating direction of the current brings cone vibrating back and...
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