Magnetostrictive rotary vibration collection and utilization device and collection method thereof

The invention relates to a magnetostrictive rotary vibration collection and utilization device and a collection method thereof. A mass block is fixed to the end of a composite cantilever beam of the device, a pickup coil is wound around the overlapped portion of an aluminum alloy substrate and iron-gallium alloy of the free portion of the composite cantilever beam, and connector lugs at the two ends of the pickup coil are connected with a converter; the composite cantilever beam is clamped on a clamping device, the clamping device is fixed at the long end of an L-shaped base, and the long end of the L-shaped base is fixedly connected with a circular hub; the short end of the L-shaped base is fixedly connected with a supporting device, the L-shaped base and the supporting device form a frame structure with an opening in one end, rectangular thin plates are fixedly arranged on the two side faces of the frame structure, and permanent magnets are fixed to the opposite inner sides of the two rectangular thin plate