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首页> 外文期刊>IEEE Transactions on Instrumentation and Measurement >Double buffered wide-range frequency measurement method for digital tachometers
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Double buffered wide-range frequency measurement method for digital tachometers

机译:数字转速表的双缓冲大范围频率测量方法

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摘要

A new frequency measurement system suitable for a wide range of microprocessor-based applications is presented. The procedure used to calculate the frequency is based on the original double-buffered method. This new method utilizes both pulse counting, and measurement of the fractional pulse period during the fixed sampling time. The sampling time can be chosen to provide high accuracy and high resolution over a wide range of frequencies. Therefore, it is specially applicable in digital tachometers.
机译:提出了一种适用于各种基于微处理器的应用的新型频率测量系统。用于计算频率的过程基于原始的双缓冲方法。这种新方法既利用了脉冲计数,又利用了固定采样时间内的分数脉冲周期测量。可以选择采样时间以在很宽的频率范围内提供高精度和高分辨率。因此,它特别适用于数字转速表。

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