帮忙翻译下毕业设计摘要，谢谢了

In electronic technology, the frequency is one of the most basic parameters and electrical parameters with many of the measurement program, the measurement results are very close relationship, therefore, the frequency of measurement has become more important. Cymometer as a measuring apparatus, often called electronic counter, and its basic function is to measure the frequency and signal cycle. Frequency meter is a more extensive application of electronic measuring instruments. The rate of major structures including pulse shaping amplifier, frequency circuits, MCU control circuit and LED display circuit components. The main frequency of the core components is regularly used AT89S52 to produce and record changes in pulse frequency, use AT89S52 to a counter, broke the most use of a digital circuit template to counter. This design used mainly AT89S52 chips and four LED digital pipe to achieve, software programming is mainly used C51 language programming.