一种可应用于地质勘探现场的光电分析系统设计研究

Study on the design of an photoelectric analysis system applied to geological exploration sites

地质勘探野外原始信息采集到室内资料整理和分析的过程漫长,人力物力成本过高,利用矿物质的吸收光谱特性,文章采用一种光学采集和光谱分析的方法在野外现场展开数据分析工作,提高效率。近红外光谱属于分子振动光谱,是基频分子振动的倍频与合频,包含丰富的氢基团(C2H,O2H,S2H,N2H等)特征信息。当分子受到近红外光线照射时,被激发产生共振,从而吸收光的一部分能量。测量其吸收光,可得到反映被测物质特征的图谱,即吸收光谱。

The process of collecting and analyzing the raw data from geological exploration to indoor data processing is long and the cost of human and material resources is too high.In this paper,using the absorption spectrum characteristics of minerals,an optical acquisition and spectral analysis method is used to conduct data analysis in the field,to improve efficiency.Near Infrared Spectra belongs to molecular vibrational spectroscopy,which is the frequency and frequency of vibration of the fundamental frequency molecules,and contains rich hydrogen group(C2H,O2H,S2H,N2H,etc.)characteristic information.When the molecule is exposed to near-infrared light,it is excited to resonate,absorbing some of the light's energy.Measure the absorbed light to obtain a spectrum that reflects the characteristics of the measured substance,that is absorption spectrum.