发明名称 |
Method and apparatus for a non-invasive measurement of the velocity of a gas or a fluid medium |
摘要 |
A method for non-invasive measurement of the velocity of a medium selected from either a gas or a fluid at an examination location by boosting atoms and molecules of the medium into an excited atomic or molecular state with a focused first pulsed light beam in the investigation location, allowing the excited atoms and/or molecules to relax into a metastable state and then boosting the atoms and/or molecules in the metastable state into an excited atomic or molecular state with a second pulsed light beam that is weaker than the intensity of the first beam to transirradiate the investigation location and to produce a characteristic luminescence, detecting the characteristic luminescence of the selectively excited atoms and/or molecules and determining the coordinates of the investigation location and of the occurrence of the luminescence of a luminescent cloud in an image field and then calculating the velocity of the medium on the basis of the distance between the investigation location and the mid-point of the luminescent cloud in view of the time interval.
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申请公布号 |
US6433861(B1) |
申请公布日期 |
2002.08.13 |
申请号 |
US20010743021 |
申请日期 |
2001.06.13 |
申请人 |
NAEGELE MARTIN;STAUDE WILFRIED |
发明人 |
NAEGELE MARTIN;STAUDE WILFRIED |
分类号 |
G01F1/708;G01N9/24;G01N21/63;G01P5/00;G01P5/18;(IPC1-7):G01P3/36;G01F1/00;G01J1/42;G01N21/00;G01N21/33;G01N21/35;G01T1/00 |
主分类号 |
G01F1/708 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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