求助论文摘要的英文翻译,很急啊
基于传统测频原理的频率计的测量精度将随被测信号频率的下降而降低,在实用中有较大的局限性,而等精度频率计不但具有较高的测量精度,而且在整个频率区域能保持恒定的测试精度。频率...
基于传统测频原理的频率计的测量精度将随被测信号频率的下降而降低,在实用中有较大的局限性,而等精度频率计不但具有较高的测量精度,而且在整个频率区域能保持恒定的测试精度。频率信号抗干扰能力强、易于传输,可以获得较高的测量精度,所以测频率方法的研究越来越受到重视。本设计是基于AT89S51单片机的等精度频率计。输入信号为峰峰值5v的正弦信号,频率测量范围10HZ~100MHZ ,频率测量精度为0.1%。采用1602液晶显示器显示测量结果
在线翻译有什么用全是错误 展开
在线翻译有什么用全是错误 展开
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Based on the traditional principle of measuring the frequency of the frequency of measurement accuracy will be tested with the frequency and reduce the decline in the more practical limitations, such as accuracy and frequency of not only has high accuracy, but in the frequency region To maintain a constant test accuracy. - Frequency signals strong anti-interference capabilities, easy to transport, receive higher accuracy, frequency of measurement method of increasing attention. The design is based on AT89S51 SCM, and other precision frequency. Input signal for the peak of the peak 5 v sine signal, the frequency range 10 HZ ~ 100MHZ, frequency measurement accuracy of 0.1 percent. By 1602 LCD display the measurement results
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