On the Origin of 1/f Noise due to Generated Entropy

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Abstract

Noise measurements analysis in this paper is associated with degradation in materials. In particular, one type is called 1/f noise and is not fully understood. In the time domain, the signal has a random noise appearance. However, in the frequency domain, the spectrum goes as 1/f in intensity at low frequencies; noise issues, of course, occur at all frequencies. In reviewing the literature, we note that 1/f noise in particular seems to be strongly related to aspects in materials that can be interpreted in terms of aging degradation in materials (i.e. disorder). In this paper, some key aspects of 1/f noise found in the literature are described and discussed how these observations are related to generated entropy. We can conclude from the literature, that the 1/f noise region is of paramount importance to observing subtle aging degradation occurring in materials. A thermodynamic framework is then used to help interpret the entropy-noise view. A 1/f spectral region entropy model is provided. We suggest two types of analyses. Results help to provide a broader understanding of 1/f noise, identify the region of the spectrum related to the onset of degradation, and show how it can be used to do prognostics. Experiments are suggested to demonstrate how 1/f noise measurements can be used as a prognostic tool for reliability testing to identify and predict degradation over time
论熵产生的 1/f 噪声的起源
本文分析的噪声测量与材料降解有关。其中,有一种噪声被称为 1/f 噪声,目前还不完全清楚。在时域中,信号具有随机噪声的外观。然而,在频域中,低频的频谱强度为 1/f;当然,所有频率都会出现噪声问题。在查阅文献时,我们注意到 1/f 噪声尤其与材料中可解释为材料老化退化(即无序)的方面密切相关。本文描述了文献中发现的 1/f 噪声的一些关键方面,并讨论了这些观察结果与生成熵之间的关系。我们可以从文献中得出结论,1/f 噪声区域对于观察材料中发生的微妙老化退化至关重要。热力学框架有助于解释熵-噪声观点。我们提供了一个 1/f 光谱区熵模型。我们建议进行两类分析。结果有助于更广泛地理解 1/f 噪声,确定与降解开始有关的频谱区域,并展示如何利用它进行预报。建议通过实验来证明如何将 1/f 噪声测量用作可靠性测试的预报工具,以识别和预测随着时间的推移出现的劣化情况
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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