摘要
对傅里叶级数的数学表达式,需要数学图像帮助理解.自制的机械谐振腔与数字显示函数信号发生器配合,用双踪示波器实时比较显示出几种典型波形及分解后的谐波、相位及电压值的数学图像.
In order to study the mathematical ex pression of fourier series in graphical way, a self-made mechanical resonant cavity equipment and digital function signal generator are employed in this essay and waveform of several typical waves and their decomposed harmonic waves, phases and voltage are observed via dual trace oscilloscope.
出处
《保定学院学报》
2011年第3期129-130,共2页
Journal of Baoding University
关键词
方波
三角波
锯齿波
正弦波
谐振腔
谐波
square wave
triangular wave
sawtooth wave
sine wave
resonant cavity
harmonic wave
