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| 声阻法中检测阻抗的测量和提高检测器灵敏度的设计 | |
| 引用本文： | 李明轩. 声阻法中检测阻抗的测量和提高检测器灵敏度的设计[J]. 物理学报, 1974, 23(3): 3-12 |
| 作者姓名： | 李明轩 |
| 作者单位： | 中国科学院物理研究所 |
| 摘 要： | 本文在声阻法检测器等效线路的基础上,提供一种测量检测阻抗的简捷方法。在已知检测阻抗的基础上,对于脱粘状态,进一步探讨了为提高检测灵敏度,如何选择检测器一些参量的方法。理论分析与实验结果较好地符合。对于脱粘状态的检测,灵敏度可以提高五倍以上。 |
| 收稿时间： | 1972-12-16 |
MEASUREMENT OF THE DETECTION IMPEDANCE AND A DESIGN FOR INCREASING THE SENSITIVITY OF THE DETECTOR IN THE ACOUSTIC IMPEDANCE METHOD |
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| LI MING-XIAN. MEASUREMENT OF THE DETECTION IMPEDANCE AND A DESIGN FOR INCREASING THE SENSITIVITY OF THE DETECTOR IN THE ACOUSTIC IMPEDANCE METHOD[J]. Acta Physica Sinica, 1974, 23(3): 3-12 | |
| Authors: | LI MING-XIAN |
| Abstract: | A simple method is devised for measuring the detection impedance in the acoustic impedance method of detection of unbonds and is based on an equivalent circuit of the detector. On the basis of the measured detection impedance, theoretical exploration is directed toward increasing the detection sensitivity for an unbond by properly choosing some of the detector parameters. The theoretical analysis is found to agree fairly well with the experimental results. In the case of unbond detection the sensitivity is increased by 5 times or more. |
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