Title:
MEASURING DEVICE, MEASURING SYSTEM, MEASURING METHOD AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/203637
Kind Code:
A1
Abstract:
This measuring device is provided with a light-emitting part, a light-receiving part, an amplifying part, and a computational processing part. The light-emitting part radiates light to an object to be irradiated, inside which a fluid flows. The light-receiving part receives interference light including light scattered by the object to be irradiated, and outputs a signal corresponding to the intensity of the interference light. The amplifying part amplifies the signal outputted from the light-receiving part. The computational processing part calculates a first frequency spectrum pertaining to the signal intensity for each frequency, for the time variation in intensity of the signal amplified by the amplifying part, and calculates a calculation value pertaining to the state of flow of the fluid by computation that includes division using a first value and a second value. The first value is a value pertaining to a frequency based on the first frequency spectrum. The second value is a value pertaining to an intensity based on the first frequency spectrum.
Inventors:
MATSUNAGA SHOUGO (JP)
TODA KEISUKE (JP)
ITOU HIROSHIGE (JP)
HORINOUCHI NAOKI (JP)
TODA KEISUKE (JP)
ITOU HIROSHIGE (JP)
HORINOUCHI NAOKI (JP)
Application Number:
PCT/JP2020/013640
Publication Date:
October 08, 2020
Filing Date:
March 26, 2020
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
G01F1/66; A61B5/0285; G01P5/26
Domestic Patent References:
| WO2019035175A1 | 2019-02-21 |
Foreign References:
| JP2000210264A | 2000-08-02 | |||
| JPS60203235A | 1985-10-14 | |||
| JPS60203236A | 1985-10-14 | |||
| JP2016027337A | 2016-02-18 |
Other References:
MASAKI GOMA: "The Development of Small Laser Doppler Blood Flow Sensor", vol. 21, 2012, PIONEER R&D, pages: 30 - 37
See also references of EP 3951327A4
See also references of EP 3951327A4
Attorney, Agent or Firm:
YOSHITAKE Hidetoshi et al. (JP)
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