| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of measuring atomization, precisely measuring an injection direction of a fluid injected from an injection system. SOLUTION: A control unit 10 acquires an atomization cross-section image 40 formed on planar light 20 when injecting a fuel from a nozzle hole 32 on a real space, defines a conical atomization model 25 with the nozzle hole 32 as a base point and gives a concentration distribution comprising a two-dimensional Gaussian distribution, or the like to the atomization model 25 on a virtual space, changes the angle of the atomization model 25 and computes a concentration distribution that the atomization model 25 can form on the planar light 20 for each angle as a pseudoatomization image 26, performs matching with each pseudoatomization image 26 within an atomization region 23 extracted on the atomization cross-section image 40, and specifies an orientation direction of a center axis Om in the atomization model 25 corresponding to the pseudoatomization image 26 most matching with a pattern on the atomization cross-section image 40 to be an injection direction of the fuel. COPYRIGHT: (C)2011,JPO&INPIT
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