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    • 6. 发明授权
    • Oxygen sensor using principle of surface plasmon resonance and oxygen transmission rate measurement system including the same
    • 氧传感器使用表面等离子体共振原理和氧气透过率测量系统包括相同
    • US08237930B2
    • 2012-08-07
    • US12543343
    • 2009-08-18
    • Jae Min HongHee Dok ChoiIl Doo Kim
    • Jae Min HongHee Dok ChoiIl Doo Kim
    • G01N21/55G01N21/00G01N17/00G01J4/00
    • G01N21/554
    • Provided is an oxygen sensor using surface plasmon resonance, including: a laser diode emitting light; a polarizer converting the emitted light into polarized light; a prism receiving the polarized light from the polarizer and having a sensor substrate on one surface thereof so that the polarized light is reflected, the sensor substrate coated with oxygen-sensitive organic material; an oxygen concentration measurement chamber provided to enclose the sensor substrate so that oxygen whose concentration is to be measured is contained therein; a photodiode measuring an amount of light reflected from the prism; and a microcontroller unit controlling operation of the oxygen sensor and calculating the oxygen concentration. Further, the oxygen concentration is determined using the microcontroller unit having absolute concentrations corresponding to the amount of light measured using the photodiode, and the oxygen concentration is measured where an incidence angle of the polarized light incident on the sensor substrate is fixed.
    • 提供了使用表面等离子体共振的氧传感器,包括:发射光的激光二极管; 偏振器将发射的光转换成偏振光; 接收来自偏振器的偏振光的棱镜,在其一个表面上具有传感器基板,使得偏振光被反射,传感器基板涂覆有氧敏感的有机材料; 设置为包围传感器基板的氧浓度测量室,其中包含其浓度要测量的氧; 测量从棱镜反射的光量的光电二极管; 以及控制氧传感器的操作并计算氧浓度的微控制器单元。 此外,使用具有对应于使用光电二极管测量的光量的绝对浓度的微控制器单元确定氧浓度,并且测量入射在传感器基板上的入射角的入射角固定的氧浓度。