| 发明名称 | Apparatus and method for in-flight detection of airborne volcanic ash | ||
| 摘要 | A method of optically determining the presence of volcanic ash within a cloud comprises emitting a circularly polarized illuminating beam within a cloud and analyzing backscatter light to identify the presence of volcanic ash within the cloud. The method further includes determining the degree to which the cloud has altered the polarization state of the emitted beam. The index of refraction of the backscatter light and the opacity of the backscatter light are also analyzed. | ||
| 申请公布号 | US9041926(B2) | 申请公布日期 | 2015.05.26 |
| 申请号 | US201414178580 | 申请日期 | 2014.02.12 |
| 申请人 | Rosemount Aerospace Inc. | 发明人 | Ray Mark D.;Anderson Kaare J. |
| 分类号 | G01N21/00;G01N21/53;B64D47/00 | 主分类号 | G01N21/00 |
| 代理机构 | Locke Lord LLP | 代理人 | Locke Lord LLP ;Wofsy Scott D.;Jones Joshua L. |
| 主权项 | 1. A method of optically determining presence of volcanic ash within a cloud, comprising: emitting a circularly polarized illuminating beam within the cloud; and analyzing backscatter light to identify the presence of volcanic ash within the cloud, wherein the step of analyzing comprises determining a degree to which the cloud has altered a polarization state of the emitted beam to distinguish between liquid and solid and measuring an index of refraction from the backscatter light to distinguish between ice and volcanic ash. | ||
| 地址 | Burnsville MN US | ||