| 摘要 |
PROBLEM TO BE SOLVED: To provide an oxygen concentration measurement apparatus capable of creating a highly precise oxygen concentration distribution image.SOLUTION: An oxygen concentration measurement apparatus 1 includes: a light irradiation unit 10 including a light source 15 that irradiates excitation light onto a measurement area applied with a fluorescent coating having an oxygen quenching property and a detection unit 11 that detects the intensity Iof the excitation light; an imaging unit 20 having an imaging device 21 that obtains a fluorescent intensity distribution image of a fluorescent coating plane by detecting the fluorescent from the fluorescent coating plane applied in the measurement area for a preset exposure period; and a control section 40 that measures oxygen concentration distribution in the measurement area based on the fluorescent intensity distribution image and the intensity Iof the excitation light. The control section 40 controls to detect the intensity Iof the excitation light at least twice before preset exposure period and to detect the intensity Iof the excitation light at least twice after preset exposure period. |
