聲音發電裝置製作與效率分析

Producing the Sound Electric Generator and its Working Efficiency Analysis

李彥霖(Yen-Lin Lee)

指導教授 ： 丁振卿 ； 洪祖全

國立臺北科技大學/機電學院/機電整合研究所/碩士(2010年)

https://doi.org/10.6841/NTUT.2010.00114

摘要

本論文主要研究聲電機構裝置，探討薄膜線圈作動方式與磁鐵間的感應電動勢之變化。聲電機構發電裝置乃是應用電磁感應原理，從原理分析磁鐵的磁力分佈以便探討機構設計，機構設計部分主要是薄膜線圈與磁鐵間的架設。不僅在機構設計上需注意磁通量變化的多寡，線圈最佳化分析也極為重要，線圈重量會影響到薄膜的振盪頻率和幅度，因此針對線徑粗細和匝數進行分析，亦探討在相同匝數下，線圈單層與多層的影響。一般聲能回收部份都探討壓電材料的回收效率，本文亦探討以相同機構分析壓電陶瓷的發電效率。一般生活環境中，聲源來自四面八方，既非穩定又是多頻的聲音，因此在效率量測過程中，必須了解聲場為何種性質。本論文量測了實驗空間的聲場並分析其特，探討多頻混音同音量大小和單頻音不同音量大小薄膜線圈振盪情形，分析多頻聲音對效率影響以及薄膜線圈振盪的靈敏度。一般交流發電機無論單相或多相都可進行整流應用，在整流過程中，須注意整流二極體元件本身的功率損耗。本研究工作利用基本電路，自製經過橋式全波整流、濾波、穩壓等基礎電路進行交流轉直流的穩定輸出整流裝置。本研究工作在纏繞線圈方面使用自製自動繞線機進行繞線，利用繼電器搭配電路設計控制馬達進行正反轉，以電源供應器調整電壓大小控制馬達轉速，適用於不同的線徑粗細，成功的節省了繞線時間並提昇工作效率，也大大的節省了許多研究成本。

關鍵字

聲電機構 ； 電磁感應 ； 薄膜線圈 ； 整流裝置 ； 自動繞線機

並列摘要

This paper aims to develop a sound forced electric generator.Experiments are focused on discussing relationship of the electromotive force (EMF) between motions of the coil thin film and the magnet. The structural design of the sound forced electric generator is setup of the coil thin film and the magnet in terms of the electromagnetic induction law. The diameter of copper wire,
the number and the weight of coils, the number of coil layers, etc. Will influence oscillatory frequency and amplitude of the coil film, which should be considered in the design. This paper also discusses the working efficiency of a common sound forced electric generator using piezoelectric material.
　　The sound in the surroundings is instable and with
multifrequency. Therefore, the property of sound field should be identified in the measurements of working efficiency. This paper has measured and analysed the spatial sound field to study oscillation and sensitivity of the coil film influenced by intensity of sound with multi-and single frequencies.
　　In general, a single-or polyphase alternator can be rectified to direct current (DC) . In the rectification process, power loss of the rectifier diode should be considered, Based on the circuit theory, this paper built AC to DC convertor for output stable electric power using full-wave bridge rectifier , wave filter, constant voltage regulator, etc.
　　In this work, a home-made automatic coil winder which uses motor controlled by relay circuit to control the rotational direction. The home-made automatic coil winder can work with different diameters of copper wire using motor with different rotational speed controlled by power supply. The home-made automatic coil winder had saved time and cost, which had further increased the investigation efficiency.

並列關鍵字

Sound forced electric generator ； Electro magnetic induation ； Coil thin film ； Rectification ； Automatic coil winded

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