光电技术应用
光電技術應用
광전기술응용
Electro-Optic Technology Application
2015年
5期
67-70
,共4页
光纤传感%溶液浓度%折射率%功率
光纖傳感%溶液濃度%摺射率%功率
광섬전감%용액농도%절사솔%공솔
fiber sensing%solution concentration%refractive index%power
针对传统溶液浓度测量方法的不足，提出了一种基于光纤端面反射原理的溶液浓度测量方法。通过Fresnel（菲涅耳）定律以及折射率与溶液浓度关系，建立了反射光强同溶液浓度的函数关系，分析了反射光强变化的规律特征，指出反射光强随溶液浓度变化应具有保持线性关系。并且通过蔗糖溶液和葡萄糖溶液的实验研究，验证了反射光强随溶液浓度变化符合线性关系特性，线性拟合度达到99%以上。该方法可用于蔗糖、葡萄糖等溶液浓度的在线测量，具有线性度高、操作简单、易于实现特点。
針對傳統溶液濃度測量方法的不足，提齣瞭一種基于光纖耑麵反射原理的溶液濃度測量方法。通過Fresnel（菲涅耳）定律以及摺射率與溶液濃度關繫，建立瞭反射光彊同溶液濃度的函數關繫，分析瞭反射光彊變化的規律特徵，指齣反射光彊隨溶液濃度變化應具有保持線性關繫。併且通過蔗糖溶液和葡萄糖溶液的實驗研究，驗證瞭反射光彊隨溶液濃度變化符閤線性關繫特性，線性擬閤度達到99%以上。該方法可用于蔗糖、葡萄糖等溶液濃度的在線測量，具有線性度高、操作簡單、易于實現特點。
침대전통용액농도측량방법적불족，제출료일충기우광섬단면반사원리적용액농도측량방법。통과Fresnel（비열이）정률이급절사솔여용액농도관계，건립료반사광강동용액농도적함수관계，분석료반사광강변화적규률특정，지출반사광강수용액농도변화응구유보지선성관계。병차통과자당용액화포도당용액적실험연구，험증료반사광강수용액농도변화부합선성관계특성，선성의합도체도99%이상。해방법가용우자당、포도당등용액농도적재선측량，구유선성도고、조작간단、역우실현특점。
For the improvement of traditional measurement method for solution concentration, a method of mea?suring concentration is proposed, which is based on the Fresnel principle in optical fiber. Through the Fresnel reflec?tion formula and the relationship between refractive index and concentration, the concentration-dependent power changes are demonstrated, and the characteristics of the reflected power changes are also analyzed correspondingly. The reflected power should change with the variation of solution concentration and keep a good linearity. Further?more, the experimental research prove the linearity between the power and solution concentration by using the su?crose solution and glucose solution,and the linear fitting factor is more than 99%. This method can be used for on-line measurement of the concentration of sucrose, glucose and other solutions, which has high linearity, simple oper?ation, and easy to be operated.
