特点: ·检测基于荧光寿命
·极好的长时间稳定性能
·反应速度快(< 5s for MicroTip 感受器)
·可以在干燥空气进行测量
·不受电磁干扰
特点:OxyMini光纤氧检测计可以在室内外进行测试,仪器结实、方便运输,通过一个RS232界面与PC连接,测量的数据可以显示、分析和贮存。其感受器的测量范围可以覆盖大部分生物医学方面的应用。
检测原则:Conventional fiber-optic oxygen sensor systems based on intensity measurements are limited in their accuracy by light source stability and ambient light fluctuations. Using a luminescence lifetime detection, measurements are not affected by light source stability, intensity fluctuations caused by fiber bending or changes of the optical properties of the sample (turbidity, refractive index, coloration, etc.). These advantages make WPI's OxyMini and OxyMicro the most advanced and reliable fiber-optic oxygen system available. 标准:The sensors can be calibrated by a simple two point calibration, 100% air-saturation and 0% air saturation. 应用:The OxyMini是一个单通道光纤氧检测计,采用WPI小型的光纤维氧感受器,这些感受器为2 mm的多聚光纤维,长度为2.5m,主要应用方面:过程控制、生物技术、埋置在土壤和树木里进行监测。