公开(公告)号：US20030235513A1

公开(公告)日：2003-12-25

申请号：US10459468

申请日：2003-06-12

Applicant: NATIONAL AEROSPACE LABORATORY OF JAPAN

Inventor： Keisuke Asai ,  Hiroyuki Nishide ,  Ichiro Okura

IPC: G01N021/00

CPC classification number: G01N21/783 ,  G01N21/6428 ,  G01N2021/6432 ,  G01N2021/7786 ,  G01N2201/06193

Abstract: The present invention provides an optical oxygen concentration measurement method and optical oxygen concentration measuring sensor wherein a light-absorbing dye-molecule layer whose absorption spectrum varies depending on the bonding with oxygen molecules is combined with a light-emitting layer, and the oxygen concentration of the ambient fluid can be measured. The light-absorbing layer 4 laminated to an oxygen-quenching light-emitting layer 3 is a film comprising a cobalt-porphyrin complex (CoP) or other light-absorbing dye molecule 7 whose absorption spectrum varies depending on the bonding with oxygen molecules. When the degree of overlap with the light emission spectrum or excitation (absorption) spectrum of the light-emitting layer 3 varies as a result of a variation in the absorption spectrum possessed by the light-absorbing layer 4, the light intensity of output light varies in accordance with the degree of overlap, and the oxygen concentration of the ambient fluid can be measured. These measurement method and measuring sensor can be applied not only to optical fiber sensors, but also to wind tunnel experiments and the like as pressure-sensitive paints.

Abstract translation: 本发明提供一种光学氧浓度测定方法和光学氧浓度测定传感器，其中吸收光谱根据与氧分子的键合而变化的吸光染料分子层与发光层结合，氧浓度 可以测量环境流体。 层叠到氧熄光发光层3的光吸收层4是包含钴 - 卟啉络合物（CoP）或其吸收光谱根据与氧分子的键合而变化的其他吸光染料分子7的膜。 当发光层3的发光光谱或激发（吸收）光谱的重叠程度随着光吸收层4所具有的吸收光谱的变化而变化时，输出光的光强度变化 根据重叠程度，可以测量环境流体的氧浓度。 这些测量方法和测量传感器不仅可以应用于光纤传感器，还可以应用于风洞实验等作为压敏涂料。