Wind-induced vibration piezoelectric energy power generation and wind speed measurement device and wind speed measurement method

Abstract

The invention provides a wind-induced vibration piezoelectric energy power generation and wind speed measurement device and a wind speed measurement method. The wind-induced vibration piezoelectric energy power generation and wind speed measurement device comprises a shell, an air inlet pipe, a triangular prism mass block, a piezoelectric fiber plate, a cantilever beam, a base and a circuit. The shell accommodates all the components of the device to form a whole; the air inlet pipe is arranged on the shell, so that the triangular prism mass block is communicated with the outside; the triangular prism mass block is mounted at the top end of the cantilever beam; the base is arranged between the bottom end of the cantilever beam and the shell, and the cantilever beam is connected with the shell through the base; the piezoelectric fiber plate is attached to the left side of the cantilever beam; and the piezoelectric fiber plate is connected with an input port of a rectifying, filtering and voltage-stabilizing power supply part circuit in the circuit, and an output port is reserved in the rectifying, filtering and voltage-stabilizing power supply part circuit to supply power to other circuits. The mechanical cantilever beam type structure with the end mass block in a certain shape has high inductivity to flow field changes, wind energy under small flow can be collected, and low wind speed can be tested.

Description

technical field [0001] The invention relates to the technical field of micro power generation and wind speed measurement, in particular to a wind-induced vibration piezoelectric power generation, a wind speed measurement device and a wind speed measurement method. Background technique [0002] The rapid development of micro-electromechanical technology and modern integrated circuits has promoted the research and manufacture of low-energy, small-scale electronic equipment. Air flow is the most basic natural phenomenon in nature. The piezoelectric energy generating device with a cantilever beam structure converts wind energy into electrical energy with a higher energy density under the action of wind-induced vibration. Compared with other generating devices, it has a simple structure and easy fabrication. The advantages of simplicity and limited limitations, compared with chemical electric energy devices that may pollute the environment, have the characteristics of cleanliness...

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Problems solved by technology

In comparison, the mechanical type is durable, but the sensitivity is poor; the heat-sensitive type and the piezoelectric type have high sensitivity, but the former consumes a lot of energy, the measuring element is easily damaged and the cost is high, and the latter has a higher uniformity of the flow field, which is difficult to control in the environment. Poor measurement accuracy

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