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An indirect excitation self-generating device for river monitoring system

A monitoring system, self-generating technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc., to achieve frequency bandwidth, improve reliability and power generation capacity, and good excitation effect Effect

Active Publication Date: 2019-02-15
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the power supply of the existing river monitoring system, the present invention proposes an indirect excitation type self-generating device for the river monitoring system

Method used

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  • An indirect excitation self-generating device for river monitoring system
  • An indirect excitation self-generating device for river monitoring system
  • An indirect excitation self-generating device for river monitoring system

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] The inside of the outer shell a is installed with the inner shell c through the rib plate b, the right end of the side wall c1 of the inner shell c is provided with the inner shell bottom wall c2, and the left end of the side wall c1 of the inner shell c is installed with an end cover d through screws, and the end cover On the boss d1 of d, two piezoelectric vibrators g and a force reed h are installed through the pressure plate e; the piezoelectric vibrator g is formed by bonding the substrate g1 and the piezoelectric chip g2, and the free end of the piezoelectric vibrator g passes The screw is equipped with a top block i, which is located on the side of the base plate g1, and the non-fixed end of the top block i is arc-shaped; the force reed h is sandwiched between two piezoelectric vibrators g, and the top block i leans against On the force reed h, the free end of the force reed h is installed with an excited magnet j and a frequency modulation mass r through screws; ...

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Abstract

The invention relates to an indirect-excitation-type self-generating device for a river monitoring system and belongs to the field of river monitoring. An outer housing is internally provided with an inner housing; the right end of the inner housing is provided with an inner housing bottom wall, and the left end is provided with an end cover; and the end cover is provided with two piezoelectric vibrators and a force application reed. The end portion of each piezoelectric vibrator is provided with a push block; each push block is abutted against the force application reed; and the end portion of the force application reed is provided with excited magnets and a frequency modulation mass block. The inner housing bottom wall is embedded with fixed magnets. The fixed magnets and the excited magnets are in opposite pole opposite arrangement. A pin hole in a swing arm of an exciter is sleeved on a pin shaft. The two ends of the pin shaft are fixedly arranged to inner housing ear plates respectively. One end of the swing arm is provided with a flow turbulence body, and the other end is provided with exciting magnets. The exciting magnets and the excited magnets are in opposite pole opposite arrangement. The two ends of a balance reed are arranged to an inner housing connection plate and an exciter connection plate respectively. The indirect-excitation-type self-generating device has the advantages that an energy capture device is a 3-degree-of-freedom system, and is wide in frequency band; the piezoelectric vibrators do not contact with the fluid; a piezoelectric wafer only bears pressure stress and the fixed magnets can realize amplification and limitation; and the self-generating device is high in reliability and large in generating capacity.

Description

technical field [0001] The invention belongs to the technical field of river monitoring, and in particular relates to an indirect excitation type self-generating device used in a river monitoring system. Background technique [0002] There are thousands of rivers all over the territory of our country. In recent years, due to insufficient treatment of industrial wastewater, soil erosion, and improper use of pesticides and fertilizers, most rivers have been polluted to a certain extent. Nearly 1 / 4 of the rivers or river sections cannot meet basic irrigation due to pollution. need. In addition, because the current flood control facilities for small and medium-sized rivers in many areas are not perfect, or even do not have any flood control facilities, when the flood season comes, it may cause dangers such as embankment failure or flooding, directly threatening the lives and property safety of people along the coast. Therefore, river monitoring has been highly valued by releva...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/18
CPCH02N2/185H02N2/186
Inventor 姚汤伟吴亚奇刘立博费翔汪彬阚君武
Owner ZHEJIANG NORMAL UNIVERSITY
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