摘要
CCD-近红外光谱仪器无移动部件、具有一定的防潮和抗振动能力,野外环境适应性强,适合于研制便携式油料质量分析仪。在批量化生产过程中,需要严格控制吸光度重复性指标。研究了该类型仪器的吸光度重复性的评价方法,并采用模拟光谱法考察了吸光度重复性对测试结果重复性的影响。研究结果表明,吸光度重复性是近红外光谱仪器的一个重要指标,严重影响测试结果重复性。采用统计方法确定了便携式油料质量分析仪的吸光度重复性指标。
NIR （Near infrared） spectrometer combined with CCD detector contains non -moveable parts, shows special advantage in antivibration and moistureproof ability, and is widely applied as portable POL （Petrol - Oil and Lubricants） quality analyzers. Photometric precision is one of important parameters to control its quality during batch production. This paper is aimed to determine evaluation method of photometric precision and investigate its effect on analytical precision by simulated spectra. Results show that photometric precision has great effect on analytical precision. The improvement of photometric precision can increase analytical precision. The action limit of photometric precision of portable POL quality analyzer has been determined by statistical method.
出处
《现代科学仪器》
2008年第4期105-109,共5页
Modern Scientific Instruments
