Telemetering system power supply device and control method for testing rotating member

The invention provides a telemetering system power supply device and control method for testing a rotating member. According to the power supply device, a control panel is connected with a battery through lead bonding, wherein the control panel comprises a microcontroller, a circuit protection unit, a first linear voltage regulator, a second linear voltage regulator, a switch control unit, a hallswitch sensor and an indicator light; the microcontroller senses a magnetic field change through the hall switch sensor, outputs a control signal to the switch control unit and carries out real-time indication on the working state through the indicator light; and the microcontroller, the circuit protection unit and the first linear voltage regulator are combined to provide the control panel with apower supply. The control method comprises the steps of collecting magnetic intensity signals; screening data; outputting a control signal; and carrying out battery state monitoring and state indication. A difficulty in power