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Title:
MEASUREMENT DEVICE AND MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2020/049941
Kind Code:
A1
Abstract:
A measurement device according to one embodiment of this disclosure comprises a light source for emitting laser light having a plurality of oscillation frequencies separated by equal frequency intervals toward a scattering substance in the air, an interferometer for causing scattered light produced by the scattering of the laser light by the scattering substance to interfere with itself, a receiver for receiving the Mie scattered light included in the scattered light that has been caused to interfere with itself, and a signal processing unit for detecting the amount of Mie scattered light from a signal from the receiver. The frequency interval is less than the full width at half maximum of the peak of the frequency spectrum of the Rayleigh scattering produced by the molecules of the air.

Inventors:
OHYAMA TATSUSHI
MIYASHITA MARIKO
Application Number:
PCT/JP2019/031100
Publication Date:
March 12, 2020
Filing Date:
August 07, 2019
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
G01N21/49; G01N15/06; G01N21/45; G01S17/95
Domestic Patent References:
WO2016208013A12016-12-29
Foreign References:
US20190018115A12019-01-17
JP2019158348A2019-09-19
Other References:
"Field-compensated tunable Mach-Zehnder interferometer for a multi-mode high-spectral- resolution lidar in the application of aerosol measurements", PROCEEDINGS OF SPIE, vol. 10827, 24 July 2018 (2018-07-24), XP060108180
"Measurement of environmental image", SYSTEMS, CONTROL AND INFORMATION, vol. 38, no. 1, 15 January 1994 (1994-01-15), pages 48 - 53
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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