公开(公告)号：US20240151641A1

公开(公告)日：2024-05-09

申请号：US18279888

申请日：2022-03-01

Applicant: TOKYO METROPOLITAN PUBLIC UNIVERSITY CORPORATION

Inventor： Naoto KAKUTA ,  Rintaro TAKAGI ,  Shintaro OZAWA ,  Takayoshi KANEKO

IPC: G01N21/3554 ,  G01N21/3504 ,  G01N21/359

CPC classification number: G01N21/3554 ,  G01N21/359 ,  G01N2021/354 ,  G01N2201/0238 ,  G01N2201/06113 ,  G01N2201/0639 ,  G01N2201/065

Abstract: A water vapor distribution measurement apparatus comprises: a light source that emits near-infrared light; a near-infrared light measurement device that is located across a measurement space from the light source and that measures the near-infrared light; an optical system that expands and applies the near-infrared light emitted from the light source in the measurement space in which a cross-section of the measurement space perpendicular to a direction connecting the light source to the near-infrared light measurement device has an area; and a distribution deriving means for deriving a water vapor distribution in the cross-section of the measurement space on the basis of a measurement result obtained by the near-infrared light measurement device. Water vapor in a measurement region having a prescribed size can be measured by this water vapor distribution measurement apparatus.