主题：扬声器等效电路分析

先修科目或先備能力：工程數學(一)、(二)，動力學

課程概述：本課程主要教導學生聲學基本知識，包含如何建立聲音波動數學模型與分析其行為，介紹如何應用數學模型對於聲波傳遞更進一步了解，並明瞭聲波基本量測技術。

目標：本課程的目標是希望培養學生聲學基本知識，同時培養學生以電腦程式語言撰寫工程分析的能力、和科技報告寫作的能力。

教科書

Fundamentals of Acoustics, L.E. Kinsler, A.R. Frey, A.B. Coppens and J.V. Sanders, Forth edition

課程大綱

分配時數

課程目標

單元主題

內容綱要

講授

示範

習作

其他¹

教育目標

核心能力

Introduction

1. Definitions and introduction to wave motion

2. Brief mathematical review

2

A1.1

B1

Sound Waves - Acoustic Wave Equation

1. Review of fluid motion

2. Derivation of linearized wave equation

3.Plane waves - progressive and standing

4. 3-D plane waves

5. Acoustic Impedance

7

A1.1

B1

Acoustic Quantities and Their Measurement

1. Average, peak and RMS values

2.Sound Power and acoustic intensity

3. Decibels and their use

6

A1.1

B1

Transmission

1. Two media

2. Three media

6

A1.1

B1

Spherical Waves

1. Equations of motion and its solution

2. Resistive and reactive fields

3. Point sources

       a. Monopole

       b. Dipole

9

A1.1

B1

Radiation From Spheres and Plane Surfaces

1. Pulsating sphere

2. Source strength

3. Method of images

4. Piston in a baffle

5. Radiation impedance

6. Radiation damping

9

A1.1

B1

Pipes and Cavities

1. Pipe resonances and radiation

2. Standing wave ratio

3. Helmholz resonator

4. Waves in pipes and acoustic filters

9

A1.1

B1