| 摘要 |
<p>A GASEOUS COMPONENT CONCENTRATION DETERMINATION APPARATUS (10) THAT CAN OBTAIN A SUFFICIENTLY LARGE LIGHT DETECTION VALUE AND DETERMINE A CONCENTRATION OF A TARGET COMPONENT IN A DESIRED SECTION WITHOUT USING A LASER EMITTER (3) OF A HIGH LASER INTENSITY OR A LARGE LIGHT COLLECTOR ISPROVIDED. THE GASEOUS COMPONENT CONCENTRATION DETERMINATION APPARATUS (10) INCLUDES: A LASER EMITTER (3) THAT EMITS FIRST LASER BEAM WHOSE WAVELENGTH IS A LIGHT ABSORPTION WAVELENGTH OF THE TARGET COMPONENT, AND SECOND LASER BEAM WHOSE WAVELENGTH IS A NON-ABSORPTION WAVELENGTH OF THE TARGET COMPONENT; A FIRST SCATTERER (5) AND A SECOND SCATTERER (7) THAT ARE LOCATED WITHIN AN IRRADIATION AREA OF THE FIRST LASER BEAM AND THE SECOND LASER BEAM, AND SPACED APART IN AN EMISSION DIRECTION OF THE FIRST LASER BEAM AND THE SECOND LASER BEAM; A PHOTODETECTOR (9) THAT DETECTS FIRST SCATTERED LIGHT RESULTING FROM SCATTERING OF THE FIRST LASER BEAM AT THE FIRST SCATTERER (5), SECOND SCATTERED LIGHT RESULTING FROM SCATTERING OF THE SECOND LASER BEAM AT THE FIRST SCATTERER (5), THIRD SCATTERED LIGHT RESULTING FROM SCATTERING OF THE FIRST LASER BEAM AT THE SECOND SCATTERER (7), AND FOURTH SCATTERED LIGHT RESULTING FROM SCATTERING OF THE SECOND LASER BEAM AT THE SECOND SCATTERER (7); AND A CONCENTRATION CALCULATOR (11) THAT CALCULATES THE CONCENTRATION OF THE TARGET COMPONENT BETWEEN THE FIRST SCATTERER (5) AND THE SECOND SCATTERER (7), BASED ON DETECTION VALUES OBTAINED BY THE PHOTODETECTOR (9).</p> |
