SUBSTANCE DETECTION SENSOR, METHOD FOR APPLYING MEASURING BEAM, AND SUBSTANCE DETECTION SYSTEM

摘要

PROBLEM TO BE SOLVED: To improve the accuracy of detecting a specific substance in an entire detection region with a large area.SOLUTION: The substance detection sensor includes: an acquisition unit acquiring information on a detection region; a first light source unit irradiating the detection region with a measuring beam with a first wavelength by surface irradiation using optical scanning; a control unit variably controlling an irradiation pattern in the irradiation position of the measuring beam directed from the first optical source unit to the detection region; a substance detecting unit detecting a specific substance in the detection region based on reflecting light of the measuring beam from the first optical light source; and a distance measuring unit measuring the distance to the specific substance detected by the substance detecting unit, the controlling unit referring to increase in distance to the specific substance measured by the distance measuring unit to largely change the irradiation pattern in the irradiation position of the measuring beam applied in the detection region.SELECTED DRAWING: Figure 15