Effect of photo - detector parmeters on the characteristics of phase - doppler sizing anemometry 多普勒粒子分析系统特性的影响
3.
Initial growths of disturbances are measured by means of hot - wire anemometry . due to the detected signals with low signal to noise ratio , the coherence function is used to eliminate background noise during data reduction 在扰动增长的初始阶段，信号的信噪比非常地低，根据相关谱分析方法，应用相干函数，将扰动信号有效地提取出来，测量了初始扰动的增长。
4.
Compared with traditional contact flow measurement methods , presents the non - contact flow measurement methods , and emphases the application of laser doppler anemometry ( lda ) and particle image velocimetry ( piv ) to flow field measurement 摘要与传统接触式流量测试方法相比较，介绍了非接触式流量测试方法，重点介绍了激光多普勒技术( lda )和粒子图像测试技术( piv )在流场测试中运用的原理。
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