Vibration energy self-powered microsensor with cantilever beam opening in the radio frequency transceiver component of the Internet of Things
A radio frequency transceiver and micro-sensor technology, which is applied in the field of self-powered micro-sensors powered by cantilever beams with holes, can solve problems such as energy loss, and achieve the effects of improving loss, improving performance, and high collection efficiency
Inactive Publication Date: 2016-04-13
SOUTHEAST UNIV
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Problems solved by technology
In the energy loss of common RF transceiver components, the energy loss caused by component vibration is a key
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[0016] The open-hole cantilever vibration energy self-powered microsensor in the radio frequency transceiver component of the Internet of Things of the present invention is based on a gallium arsenide substrate 4 and is composed of a main cantilever 1 and eight auxiliary cantilever beams 2 of the same size. One end of 1 is fixed on the gallium arsenide substrate 4 through the anchor region 3 of the main cantilever beam, and the anchor region of the secondary cantilever beam 2 is fabricated on the free edges on both sides of the main cantilever beam 1, and each side is distributed with Four secondary cantilever beams 2, the natural resonant frequency of each secondary cantilever beam 2 is different, by designing the radius of the circular hole 6 on the different secondary cantilever beams 2, the distance between the centers of the adjacent circular holes 6 and the number of holes, it can be Adjust the Young's modulus, Poisson's ratio and density of each secondary cantilever 2, s...
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Abstract
The invention discloses a perforated cantilever beam vibration energy self-powered microsensor of a radio frequency transceiver. The perforated cantilever beam vibration energy self-powered microsensor comprises a main cantilever beam, eight auxiliary cantilever beams, a large peripheral capacitance and voltage stabilizing circuit, wherein the auxiliary cantilever beams are manufactured on the free edges on the two sides of the main cantilever beam respectively, and the eight auxiliary cantilever beams are provided with circular holes with different radii, different separation distances and different numbers. The perforated cantilever beam vibration energy self-powered microsensor has the advantages, of being free of heating, simple in structure, free of electromagnetic interference, clean, environmentally friendly, high in electro-mechanical transformation efficiency, high in output voltage and the like, of a traditional beam structure vibration energy self-powered sensor; in addition, due to the fact that vibration energy can be collected, unwanted shakes of a radio frequency transceiving assembly in the working process are restrained, and working stability of the radio frequency transceiving assembly is improved; meanwhile, due to the fact that the radii, the separation distances and the numbers of the holes formed in the auxiliary cantilever beams are designed, the eight auxiliary cantilever beams can have eight different natural resonance frequencies, the frequency bandwidth is increased, the perforated cantilever beam vibration energy self-powered microsensor of the radio frequency transceiver is more applicable to the vibration environment with complex and changeable vibration frequencies, and energy collection efficiency and the power supply capacity are improved.
Description
technical field [0001] The invention proposes a self-powered microsensor for vibration energy of a perforated cantilever beam in a radio frequency transceiver component of the Internet of Things, and belongs to the technical field of microelectromechanical systems. Background technique [0002] With the development of Internet of Things technology, RF transceiver components are required to work with low power consumption for a long time, so the research on the energy loss of RF transceiver components is essential in the research of Internet of Things technology. In the energy loss of common radio frequency transceiver components, the energy loss caused by component vibration is a key. The collection of vibration energy has also attracted more and more attention at home and abroad. The existing vibration energy collector can convert the vibration energy in the environment into electrical energy. It has the advantages of environmental protection, simple structure, maintenance...
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IPC IPC(8): H02N2/18H02J50/27B81B3/00B81C1/00
Inventor 廖小平王凯悦
Owner SOUTHEAST UNIV
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