改进的微型lda在高空间分辨率应用中的应用

ICIASF '95 Record. International Congress on Instrumentation in Aerospace Simulation Facilities Pub Date : 1995-07-18 DOI:10.1109/ICIASF.1995.519127

S. Damp

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引用次数: 3

摘要

不仅在亚音速，而且在跨音速和超声速中，还不可能测量锥体周围边界层的速度结构。因此，需要建造激光多普勒风速仪来实现这些测量。基于微型lda的构建，可以实现25 /spl mu/m的极高空间分辨率的边界层测量。该BL-MLDA的光机械头结构长度仅为35 mm。新增的电子设备由电池驱动，功耗低于1w。通过初步试验，验证了系统的功能;测量板上气流的边界层。

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Use of the modified miniature-LDA in high spatial resolution application

Measuring the velocity structure of a boundary layer surrounding a cone, not only in subsonic, but also in transonic and supersonic is not yet possible. Therefore, the construction of a laser Doppler anemometer is demanded to realize these measurements. Based on the construction of the miniature-LDA, boundary layer measurements with very high spatial resolution of 25 /spl mu/m were possible. The opto-mechanical head of this BL-MLDA has a construction length of only 35 mm. The added electronics are battery-driven and consume under 1 W electrical power. The function of the system was shown by a first test; measuring a boundary layer of an air flow over a plate.

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ICIASF '95 Record. International Congress on Instrumentation in Aerospace Simulation Facilities

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