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本文是作者和中央广播事业局554台脉宽机试验小组多年研制并馈脉宽调制机的初步总结。并馈脉宽调制机,对改造我国现有的自动屏调机,特别是在改进电声指标和提高工业效率方面,可能有参考价值。但脉宽调制机在我国尚处于实验阶段,对其优缺点的认识也尚需经过更多的实践检验,因此对文中的有些看法,希望进一步开展讨论。
This article is the author and the Central Broadcasting Bureau 554 pulse width test group developed and fed pulse modulator for many years a preliminary summary. And fed pulse width modulation machine, the reconstruction of our existing automatic screen machine, especially in improving the electro-acoustic indicators and improve industrial efficiency, may have reference value. However, the pulse width modulation machine is still in the experimental stage in our country, and the understanding of its advantages and disadvantages still need to go through more practice tests. Therefore, some opinions on the article are hoped for further discussion.