函数发生器一般是指能自动产生正弦波、三角波、方波及锯齿波、阶梯波等电压波形的电压或仪器。根据用途不同，有产生三种或多种波形的函数发生器，使用的器件可以是分立器件-Function generator can generally refers to automatically generated sine wave, triangle wave, sawtooth affected parties, such as ladder-wave voltage waveform of voltage or equipment. According to different purposes, there have three or more of the function generator waveforms, the use of the devices may be discrete devices