摘要
文章阐述了超声波检测套管厚度的原理和复调制谱细化算法,并运用该算法对不同的套管厚度进行了验证,实验结果与实际值比较说明,复调制谱细化算法计算出的套管厚度可以满足精度要求,且计算量较小,适合使用在对计算速度和功耗要求严格的下井仪中。
In this paper,the principle of detecting thimble's thickness and the arithmetic of frequency spectrum refinement are studied.Different thickness of thimbles are validated with this arithmetic.The result of experiment indicates that the arithmetic of frequency spectrum refinement can satisfiy the demand of precision,and the quantity of calculation is small.It can be used in downhole tools.
出处
《石油仪器》
2012年第2期13-14,17,共3页
Petroleum Instruments
关键词
复调制谱细化
套管厚度
FFT
frequency spectrum refinement
thickness of thimble
FFT
