关键词: 边沿效应, 分辨率稳定度, 精密频率测量, 模糊区

Abstract:

In the precision frequency measurement, a high measurement resolution can be obtained by the phase processing methods and the border effect plays a vital role in improving the measurement accuracy. This paper  makes a detailed analysis of the generation mechanism of the border effect. By experiments, the application of the characteristics of the border effect is analyzed and validated in the precision frequency measurement. The combinative test experiments with multiplier amplifiers show that the frequency stability can reach 4.8×10^-13/s based on the border effect after the signal is processed by two multiplier amplifier sections. The results further reveal that it can ensure not only the high resolution but also the authenticity of the measurement results in the noise environment relying on the border of the resolution fuzzy area of the detection instruments.

Key words: border effect, stability of the resolution, precision frequency measurement, fuzzy area