| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a fluid soundness evaluating apparatus and a diesel engine fuel soundness control system, which contribute to evaluating a fluid in soundness. <P>SOLUTION: The apparatus includes: a container 12 for containing a fuel F for example, which is the fluid to be measured; a micro carbon residue measuring section 15 having an incident part 13 and a light receiving part 14 which are disposed in the fluid to be measured in the container 12 and face each other so as to have a gap D at a prescribed spacing, measuring a light transmittance at the light receiving part 14 by varying a wavelength of light from a light source 21, measuring light or fluorescence in two or more wavelength regions, or at least two wavelengths in a range of 400-1,100 nm, by using a light receiving sensor 22, and computing a micro carbon residue (MCR) value on the basis of an intensity ratio obtained by above measurement; an ultrasonic speed indicator 16 which is disposed in the container 12 and measures a density in the fluid to be measured; and a barrier 17 which is disposed between the MCR measuring section 15 and the ultrasonic speed indicator 16. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
