方案详情文
Although acoustics consists in the propagation of an oscillatory disturbance of local
pressure, particle velocity, density and temperature, sound measurement is often assimilated
to pressure measurement. This is because for decades only pressure fluctuations were
accessible and because their relation with the other oscillatory quantities is well known under
linear acoustic approximation and in simple configurations. Such a correct description of the
origins of sound has long been known from the theory of sound, but there is a bad habit of
acousticians to use the descriptions of sound as acoustic pressure only. Meanwhile, a sound
wave is a form of energy transport in the field and has the vectors features. Sound intensity
(SI) as a vector variable inseparably couples the acoustic particle velocity (called also
acoustic velocity). and acoustic pressure (Ia=p v) and represents a stream of acoustic energy
flowing in the field. This vector parameter of acoustic wave can be measured with special
sound intensity probe and can be easily shown in a graphical form.
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北京欧兰科技发展有限公司为您提供《流体中速度场,声场检测方案(粒子图像测速)》，该方案主要用于其他中速度场,声场检测，参考标准《暂无》，《流体中速度场,声场检测方案(粒子图像测速)》用到的仪器有德国LaVision PIV/PLIF粒子成像测速场仪、自适应粒子成像测速场仪（PIV）、激光相位多普勒干涉仪LDV，PDI，PDPA，PDA、体视层析粒子成像测速系统(Tomo-PIV)。
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