Design of mine-used ultrasonic transducer of wind speed and directio
In order to monitor gas countercurrent leaded by coal mine gas outburst accidence, a mine-used ultrasonic transducer of wind speed and direction was designed based on principle of ultrasonic time difference method. The relationship between the wind speed and direction and the time difference of ultr...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Industry and Mine Automation
2014-09-01
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| Series: | Gong-kuang zidonghua |
| Subjects: | |
| Online Access: | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2014.09.024 |