| 摘要 |
The washing machine in accordance with the present invention is provided with a rotary drum, a water tank, a machine body accommodating the water tank, a machine base, an electric motor, a vibration detecting unit, a control unit, a waveform input circuit, a first output detecting circuit, and a second output detecting circuit. The base of the washing machine is set below the machine body to support the machine body. The electric motor drives the rotary drum for rotating. The vibration detecting unit equipped with a primary coil, a secondary coil and a magnetic body is arranged between the water tank and the base. When a prescriptive voltage waveform is inputed to the primary coil and the magnetic body shakes with the water rank, the secondary coil will output a voltage waveform corresponding to the motion of the magnetic body to the first output detecting circuit. The first output detecting circuit rectifies the output signal and transfers it to the control unit. In addition, the second output detecting circuit amplifies the output signal of the first output detecting circuit and transfers it to the control unit. |
