| 发明名称 |
Air-spring compensation in a piston-type marine vibrator |
| 摘要 |
Embodiments relate to the restriction of gas flow in a piston-type marine vibrator to compensate for air-spring effects. An embodiment provides marine vibrator comprising: a containment housing; a piston plate; a fixture coupled to the containment housing; a mechanical spring element coupled to the piston plate and to the fixture; a driver coupled to the piston plate and to the fixture; and a variable gas flow restrictor disposed in an interior volume of the marine vibrator, wherein the marine vibrator has a resonance frequency selectable based at least in part on the variable gas flow restrictor. |
| 申请公布号 |
US9507037(B2) |
申请公布日期 |
2016.11.29 |
| 申请号 |
US201414462252 |
申请日期 |
2014.08.18 |
| 申请人 |
PGS Geophysical AS |
发明人 |
Tenghamn Stig Rune Lennart;Snodgrass Jonathan David;Löfgren Bo Carl Fredrik;Ryttersson Karl-Henrik |
| 分类号 |
G01V1/04;G01V1/143;G01V1/38 |
主分类号 |
G01V1/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A marine vibrator comprising:
a containment housing; a piston plate; a fixture coupled to the containment housing; a mechanical spring element coupled to the piston plate and to the fixture; a driver coupled to the piston plate and to the fixture; and a variable gas flow restrictor disposed in an interior volume of the marine vibrator, wherein the marine vibrator has a resonance frequency selectable based at least in part on the variable gas flow restrictor. |
| 地址 |
Oslo NO |
