Measuring apparatus, measuring method, computer program, and recording medium

A measuring apparatus comprising:

• an irradiator configured to irradiate fluid with light;
• a first light receiver configured to receive a first component, which passes through the fluid, out of scattered light scattered by the fluid;
• a second light receiver configured to receive a second component, which is scattered in a first direction in which said irradiator is located in a surface layer of the fluid, out of the scattered light;
• a third light receiver configured to receive a third component, which is scattered in a second direction that is different from the first direction in the surface layer of the fluid, out of the scattered light;
• and
• an outputter configured to output fluid information about the fluid, which is obtained on the basis of light receiving signals of said first light receiver, said second light receiver, and said third light receiver.

A measuring method comprising:

• irradiating fluid with light;
• receiving a forward scatter component of scattered light scattered by the fluid;
• receiving a backscatter component of the scattered light;
• receiving a side scatter component of the scattered light;
• and
• an outputting process of outputting fluid information about the fluid, which is obtained on the basis of light receiving signals of the forward scatter component, the backscatter component, and the side scatter component.

A non-transitory computer-readable medium on which is stored a program which, when executed by a computer, causes the computer to perform:

• irradiating fluid with light;
• receiving a forward scatter component of scattered light scattered by the fluid;
• receiving a backscatter component of the scattered light;
• receiving a side scatter component of the scattered light;
• and
• an outputting process of outputting fluid information about the fluid, which is obtained on the basis of light receiving signals of the forward scatter component, the backscatter component, and the side scatter component.