Length measurement methods of drill pipe
Principle and research and application conditions of some length measurement methods of drill pipe were discussed including counting method, stress wave method, electric wave method and low-voltage pulse reflection method. Advantages of the methods were compared as well as disadvantages. It was poin...
| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Industry and Mine Automation
2015-03-01
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| Series: | Gong-kuang zidonghua |
| Subjects: | |
| Online Access: | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2015.03.013 |