首页> 外国专利> Measuring local instantaneous temperature in especially gaseous fluid involves positioning and alignment of test laser light in beam path of at least one crossing pump laser beam or directly in beam path original pump laser light

Measuring local instantaneous temperature in especially gaseous fluid involves positioning and alignment of test laser light in beam path of at least one crossing pump laser beam or directly in beam path original pump laser light

机译：测量特别是气态流体中的局部瞬时温度涉及在至少一个交叉泵浦激光束的光束路径中或直接在光束路径中原始激光泵浦光束的测试路径中定位和对准测试激光

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摘要

The method involves producing short-duration, small volume refractive index grids (9) by crossed pump laser beams whose propagation at the local speed of sound produces contrast modulation of the grid whose frequency is detected with a test laser beam under Bragg conditions and measured optoelectronic ally, enabling computation of the local speed of sound, which gives the local fluid temperature by the laws of thermodynamics. Positioning and alignment of the test laser light is carried out in the beam path of at least one of the crossing pump laser beams or directly in the beam path the original pump laser light.

机译：该方法包括通过交叉泵浦激光束产生短时间，小体积折射率的栅格（9），其在声速下的传播会产生栅格的对比度调制，该栅格的频率由布拉格条件下的测试激光束检测并通过光电测量可以计算局部声速，并根据热力学定律给出局部流体温度。测试激光的定位和对准是在至少一个交叉泵浦激光束的光路中进行的，或者是在原始泵浦激光光的光路中直接进行的。

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公开/公告号DE10339709A1

专利类型
公开/公告日2005-05-19

原文格式PDF
申请/专利权人 LEHMANN BERNHARD;
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申请/专利号DE2003139709
发明设计人 LEHMANN BERNHARD;
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申请日2003-08-22
分类号G01K11/26;G01P5/24;
国家 DE
入库时间 2022-08-21 22:01:15

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