【摘要】 主要介绍了一种集紫外荧光法和化学发光法于一体的新型硫氮分析仪,系统采用模块化设计,数据的采集是在LabWindows/CVI的环境下,通过C8051F040完成的。介绍了系统的工作原理,以及硫氮分析仪的硬件接口电路设计,最后介绍了基于LabWindows/CVI的用户界面设计,以及应用校准法得到硫氮浓度的计算方法。本系统测量速度快,结果精确,应用范围比较广泛,尤其是对低含量硫氮的分析精度比较高,检测下限可达到0.1mg/L。本系统对于硫氮含量的测定有重要意义,对于同类系统的研发有参考价值。更多还原

【Abstract】 A new SN analytical instrument,which is based on UV fluorescence method and chemiluminescence method,is developed.The modularized design is adopted for system structure,and the data acquisition is implemented by C8051F040 under Lab Windows/CVI.The operating principle of the system and the hardware interface circuits of the instrument are introduced,the Lab Windows/CVI interface design and the calculating of the determination of total sulfur and total nitrogen by calibration are given in the end.The system will be wildly used for its quick and accurate character,especially for its high accuracy in analyzing low determination of total sulfur and total nitrogen,which reaches 0.1 mg/L.The system is important for the measurement of determination of total sulfur and total nitrogen and the development of the same kind systems.更多还原