Earthquake pulley scanner for detecting borehole wall quality and detection method thereof

The invention discloses an earthquake pulley scanner for detecting borehole wall quality and a detection method thereof. The scanner comprises a host computer, an excitation reception unit, and a moving carrier which is provided with an encoder; the excitation reception unit comprises an electromagnetic vibration exciter and a sensor which are fixed on the moving carrier; the electromagnetic vibration exciter, the sensor and the encoder are connected with the host computer. The earthquake pulley scanner has simple structure, convenient usage, and less measurement time consumption; the modes of traditional excitation that man-made hammering is required are changed; an impact unit is provided with a roller pulse control vibration exciter therein; the electromagnetic vibration exciter is controlled by the host computer to be automatically excited; therefore, the detection efficiency is increased and quick exploration of borehole walls is fulfilled; the sensor can completely respond to ultrahigh frequency signals