Title:
INFRARED DETECTION DEVICE, INFRARED DETECTION METHOD, PROGRAM TO BE EXECUTED BY COMPUTER, AND COMPUTER-READABLE RECORDING MEDIUM IN WHICH PROGRAM IS RECORDED
Document Type and Number:
Japanese Patent JP2020085696
Kind Code:
A
Abstract:
To provide an infrared detection device with which it is possible to calculate a temperature with high accuracy even in a far-infrared and a mid-infrared region.SOLUTION: An infrared detection device 10 comprises detectors 1, 2 and a calculation unit 4. The detection 1 detects the spectral irradiance I (λ, T) of an infrared ray IFR1 having a wavelength λ. The detector 2 detects the spectral irradiance I (λ, T) of an infrared ray IFR2 having a wavelength λlonger than the wavelength λ. The calculation unit 4 calculates, on the basis of the ratio of spectral irradiances I (λ, T) and I(λ, T), the ratio of the permeability τ(λ) of the infrared ray IFR1 in a section from an object 20 to the detectors 1, 2 to the permeability τ(λ) of the infrared ray IFR2 in a section from the object 20 to the detectors 1, 2, calculates the permeability of either τ(λ) or τ(λ) on the basis of the calculated permeability ratio, and calculates the temperature of the object 20 on the basis of the calculated permeability.SELECTED DRAWING: Figure 1
Inventors:
YAMAMOTO SATORU
YOSHIDA MITSUKUNI
IZUMI MAKOTO
YOSHIDA MITSUKUNI
IZUMI MAKOTO
Application Number:
JP2018221653A
Publication Date:
June 04, 2020
Filing Date:
November 27, 2018
Export Citation:
Assignee:
SHARP KK
International Classes:
G01J5/00; G01J5/10; G01N21/3504
Attorney, Agent or Firm:
Kawakami Keiko
Takao Matsuyama
Takao Matsuyama