论文部分内容阅读
本文介绍了一种以8031单片机为核心的、宽频域、高精度智能频率计,它克服了一般数字频率计在低频段精度不高的缺点,在整个测量范围内(10~(-8)Hz～100MHz),理论误差不超过0.004％。由于采用了频率分段技术,自动实现频段之间的转换,从而响应速度较快。电路仅用少量集成块构成,容易实现。最后对测量误差作了理论分析。
This paper introduces a 8031 single-chip microcomputer as the core, broadband, high-precision smart frequency meter, which overcomes the shortcomings of the general digital frequency meter in the low frequency band accuracy is not high, in the entire measurement range (10 ~ (-8) Hz ~ 100MHz), the theoretical error does not exceed 0.004%. Due to the use of frequency segmentation technology, automatic conversion between frequency bands, which respond faster. Circuit with only a small number of integrated components, easy to implement. Finally, the measurement error is analyzed theoretically.