急，请高手帮忙翻译一下毕业论文摘要，不要在线翻译的，谢谢！

2024-12-09 20:47:00

推荐回答（1个）

回答1：

Along with the people living standard unceasing enhancement, the digital control is one of without doubt goals which the people pursues, it the convenience which brings to the person also is cannot be denied, volume control is a typical example, but the people are more and more high to its request, must work, the scientific research for the modern people, the life, provides a better more convenient facility to need to obtain from the digital technology, all to the numerical control, the intellectualized control direction are developing. In the contemporary acoustic equipment, usually uses the potentiometer to carry on the volume control. When frequently carries on the volume control, also is easy to cause the potentiometer to wear appears the breakdown. Therefore, so long as changes the potentiometer adjustment by the machinery adjustment the digital adjustment, may avoid a series of breakdowns appearance which initiates because of the potentiometer attrition. The present paper is precisely in view of the above question, introduced one kind the digital volume control electric circuit which with d/a converter DAC0832, binary reversible counter 74L S193 and 555 timers designs, is controlled the rank to be possible to reach 256 levels, and the periphery electric circuit is extremely simple.
Key word: Volume, electric circuit, digital signal, simulated signal

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