| A HIGH-EFFICIENCY TANDEM PISTON AIR GUN |
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| 作者姓名： | 张训义 |
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| 作者单位： | Institute of |
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| 摘 要： | The high-efficiency tandem piston air gun is a new pneumatic seismic source with simple structure, convenient operation and low cost. It can create high-energy acoustic pulse signals, and effectively attenuate bubble responses. This paper briefly introduces the air gun with 0.8 liter at a pressure of 140 kg/cm2. The measurement shows that the gun has reached a maximum peak-peak sound pressure up to about 11.7 bar-meters. The ratio (P1-P2) is about 2.79. The energy of the acoustic pulse is concentrated within 200 Hz and the main frequency corresponding to the spectrum value is about 30 Hz. Its lowest frequency is below 10 Hz.
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| 收稿时间： | 4/1/1984 12:00:00 AM |
| 修稿时间： | 1985/2/23 0:00:00 |
A HIGH-EFFICIENCY TANDEM PISTON AIR GUN |
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| ZHANG XUNYI.A HIGH-EFFICIENCY TANDEM PISTON AIR GUN[J].Acta Oceanologica Sinica,1985,4(4):641-647. |
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| Authors: | ZHANG XUNYI |
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| Institution: | Institute of Acoustics, Academia Sinica |
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| Abstract: | The high-efficiency tandem piston air gun is a new pneumatic seismic source with simple structure,convenient operation and low cost.It can create high-energy acoustic pulse signals,and effectively attenuate bubble responses.This paper briefly introduces the air gun with 0.8 liter at a pressure of 140 kg/cm2.The measurement shows that the gun has reached a maximum peak-peak sound pressure up to about 11.7 bar-meters.The ratio(P1-P2) is about 2.79.The energy of the acoustic pulse is concentrated within 200 Hz and the main frequency corresponding to the spectrum value is about 30 Hz.Its lowest frequency is below 10 Hz. |
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