Four-wire blower is a kind of modern blower, which is mainly used for air transmission, air filtration, air addition, air cooling and so on. Four-wire blowers are divided into two types, namely DC blowers and AC blowers. The DC blower is to drive the rotor of the blower through the appropriate voltage and current, so as to achieve air transmission and filtration. Ac blower is to drive the rotor of the blower through alternating current, so as to achieve air transmission and filtration.

The advantage of four-wire blowers is that they have higher efficiency and lower noise, while also having higher stability and reliability. When using a four-wire blower, it is necessary to pay attention to maintaining thermal balance, maintaining accuracy and preventing external interference to ensure the accuracy of measurement results.