Automatic blower fan performance testing system

The utility model discloses an automatic blower fan performance testing system, which comprises a blower fan (8), a testing channel (11) and a computer system (12). An air channel of the blower fan (8) is connected with the testing channel (11). A torque sensor (5) and a rotating speed sensor (6) are arranged on a motor of the blower fan (8). The torque sensor (5) and the rotating speed sensor (6) are respectively connected with the computer system (12). A pressure sensor (4) is arranged on the inner side of the testing channel (11). A differential pressure transducer (7) is arranged on the inner side of the air channel of the blower fan (8). The pressure sensor (4) and the differential pressure transducer (7) are respectively connected with the computer system (12). By adopting the automatic blower fan performance testing system provided in the utility model, automatic collecting and processing of blower fan performance parameters can be achieved. The data processing is accurate and reliable. The labor intensity can be lowered. Personal errors can be effectively prevented.