| 摘要 |
PURPOSE:To enable the measuring and quantitative indication as map of the concentration, diameter and speed of sprayed particles with a relatively high concentration in an instantaneous spatial distribution by a method wherein light irradiates particles, is received discriminating transmission light and scattered light to perform a desired computation based on the information thus obtained, whose results are displayed. CONSTITUTION:Attenuated light transmitting sprayed particles to be measured is received with a hologram photodetector 8 and an atenuated light image is formed by front lights transmitting the spray. On the other hand, back scattering lights from the spray are received with a light image receiver 12 to form a back scattering light image. Light density distribution of the developed reproduced images of the front transmission image and the back scattered image obtained with hologram photodetectors 8 and 12 are received simultaneously with two video cameras 16 and 17 for a computer while taken into a computer 19 through an interface 18. The density of the front and back images taken into the computer 19 are digitally recorded for each pixel and based on the density of the two images, the volume and density of the spray of particles are computed and displayed in color with a quantitative mapping. |
