CN-117233111-B - Glue refractive index and absorptivity detection method and detection system

Abstract

The invention relates to a glue refractive index and absorptivity detection method and detection system, belongs to the technical field of optical characteristic detection, and solves the problems that in the prior art, the refractive index and absorptivity of transparent glue are lack of quantitative detection, the optical properties of the used glue cannot be accurately known, and scientific experiments and product manufacturing cannot be effectively completed. The detection method comprises the steps of preparing an organic glass sample, measuring the light transmittance of the organic glass sample which is not coated with glue to be detected in the air, calculating to obtain the self absorption rate of the organic glass sample, coating the glue to be detected on the organic glass sample, measuring the light transmittance of the organic glass sample coated with the glue to be detected after the glue is solidified, closing a light source, collecting an environmental background spectrum, and calculating to obtain the refractive index of the glue to be detected and the absorption rate of the glue to be detected under the specific coating thickness of the glue to be detected. The invention realizes the quantitative detection of the refractive index and the absorptivity of the glue.

Inventors

• YANG XIAOYU
• HENG YUEKUN
• XU MEIHANG

Assignees

• 中国科学院高能物理研究所

Dates

Publication Date

20260508

Application Date

20230825

Claims (5)

1. 1. The method for detecting the refractive index and the absorptivity of the glue is characterized by comprising the following steps of: step 1, preparing an organic glass sample; Measuring the light transmittance of an organic glass sample piece which is not coated with glue to be measured in the air, and calculating to obtain the self absorption rate of the organic glass sample piece; step 3, smearing glue to be tested on the organic glass sample; Step 4, after the glue is solidified, measuring the light transmittance of an organic glass sample piece coated with the glue to be measured; step 5, turning off the light source, collecting the background spectrum of the environment, and calculating to obtain the refractive index of the glue to be measured and the absorptivity of the glue to be measured; the step 3 comprises the following steps: step a, smearing to obtain a first group to be tested; Step b, smearing to obtain a second group to be tested; Taking an organic glass sample piece, and respectively smearing glue to be tested on two opposite surfaces of the organic glass sample piece to obtain a first glue layer and a second glue layer; The step b comprises the steps of taking two organic glass sample pieces in addition, and smearing glue to be tested between the two organic glass sample pieces to obtain a third glue layer; the thicknesses of the first glue layer, the second glue layer and the third glue layer are the same; The step 4 comprises the following steps: step 41, measuring the light transmittance of the first group to be measured in the air; Step 42, measuring the light transmittance of the second group to be measured in air; End light transmittance measurement result of first test group Represented by formula (4): (4) in the formula, , And (3) with Respectively representing the reflectivity at the interface between the glue and the air, the absorptivity of the transparent glue at the specific coating thickness, the reflectivity at the interface between the glue and the organic glass sample piece and the absorptivity of the organic glass sample piece used in the first group; The second test set end light transmittance measurement result T 2 is represented as formula (5): (5) in the formula, And (3) with Respectively representing the reflectivity at the interface of the organic glass sample piece and the air and the respective absorptivity of the two organic glass sample pieces used in the second to-be-tested group; formula (5) ×2-formula (4) gives formula (7): (7) And Expressed as: (8) (9)。
2. 2. The method of claim 1, wherein the number of organic glass samples is three.
3. 3. The method according to claim 2, wherein the step 2 comprises the steps of: Step i, collecting the spectrum result in the air when the organic glass sample is not put in ; Step ii, respectively placing three organic glass sample pieces which are not coated with the glue to be tested into a detection system, and respectively collecting the spectrum results of the corresponding organic glass sample pieces which are not coated with the glue to be tested ; Step iii, turning off the light source to collect the background spectrum of the environment The absorption rate of the organic glass sample is calculated according to a formula 。
4. 4. The method of claim 3, wherein the formula for calculating the absorbance of the organic glass sample itself is: in the formula, Indicating the light transmittance in air of the organic glass sample, The spectrum of an organic glass sample without applied glue to be measured is shown, Representing the spectrum of the background of the environment, Indicating the spectral results in air without the organoglass sample; And In the formula, Indicating the light transmittance in air of the organic glass sample, Representing the reflectivity at the air-to-organic glass sample interface, Indicating the absorptivity of the organoglass sample itself.
5. 5. A glue refractive index and absorptivity detection system, which is used for completing the detection method according to any one of claims 1-4, and comprises a light source, an optical fiber, a collimating lens fixing component, a connecting rod fixing structure and a spectrometer; the light source and the spectrometer are respectively connected with the collimating lens fixing assembly, and the collimating lens fixing assembly is connected with the connecting rod and is fixed on the workbench through the connecting rod fixing structure.

Description

Glue refractive index and absorptivity detection method and detection system Technical Field The invention relates to the technical field of optical characteristic detection, in particular to a transparent glue refractive index and absorptivity detection method and system. Background The transparent glue is widely applied to the related fields of scientific experiments, product manufacturing and the like. The optical properties of the glue can have important influence on the scientific experiment result and the optical transparency of the product, and the refractive index and the absorptivity are two important optical parameters of the transparent glue, so that accurate quantitative detection of the transparent glue is beneficial to better understanding the optical properties of the used glue and better completing the scientific experiment and product manufacturing. However, the prior art lacks an effective means for quantitatively detecting the refractive index and the absorptivity of the transparent glue. Disclosure of Invention In view of the above analysis, the present invention aims to provide a method and a system for detecting refractive index and absorptivity of glue, which are used for solving at least one of the problems that in the prior art, the refractive index and absorptivity of transparent glue are not quantitatively detected, and the optical properties of the used glue cannot be accurately known, so that scientific experiments and product manufacturing cannot be effectively completed. In a first aspect, the present invention provides a method for detecting refractive index and absorptivity of glue, including the following steps: step 1, preparing an organic glass sample; Measuring the light transmittance of an organic glass sample piece which is not coated with glue to be measured in the air, and calculating to obtain the self absorption rate of the organic glass sample piece; step 3, smearing glue to be tested on the organic glass sample; Step 4, after the glue is solidified, measuring the light transmittance of an organic glass sample piece coated with the glue to be measured; And 5, turning off the light source, collecting an environmental background spectrum, and calculating to obtain the refractive index of the glue to be measured and the absorptivity of the glue to be measured under the specific coating thickness. Alternatively, the number of organic glass samples is three. Optionally, the step 2 includes the steps of: step i, collecting a spectrum result P Air-conditioner (lambda) in the air when the organic glass sample is not put in; Step ii, respectively placing three organic glass sample pieces which are not coated with the glue to be tested into a detection system, and respectively collecting the spectrum results P organic polar glaze (lambda) of the corresponding organic glass sample pieces which are not coated with the glue to be tested; And iii, turning off the light source, collecting an environmental background spectrum P Environmental background (lambda), and calculating the absorption rate S Organic glass of the organic glass sample according to a formula. Alternatively, the formula for calculating the absorptivity of the organic glass sample itself is: Wherein T Organic glass represents the light transmittance in the air of the organic glass sample, P Organic glass (lambda) represents the spectrum of the organic glass sample without the glue to be measured, P Environmental background (lambda) represents the spectrum of the environment background, and P Air-conditioner (lambda) represents the spectrum result in the air without the organic glass sample; And T Organic glass ＝1-2*r Air-conditioner - Organic glass -S Organic glass Where T Organic glass denotes the transmittance in air of the organic glass sample, r Air-conditioner - Organic glass denotes the reflectance at the interface of air and the organic glass sample, and s Organic glass denotes the absorptivity of the organic glass sample itself. Optionally, the step 3 includes the steps of: step a, smearing to obtain a first group to be tested; and b, smearing to obtain a second group to be tested. Optionally, the step a comprises the steps of taking an organic glass sample, and respectively smearing glue to be measured on two opposite surfaces of the organic glass sample to obtain a first glue layer and a second glue layer. Optionally, the step b includes taking two organic glass sample pieces, and coating glue to be tested between the two organic glass sample pieces to obtain a third glue layer. Optionally, the thicknesses of the first, second and third glue layers are the same. Optionally, the step 4 includes the steps of: step 41, measuring the light transmittance of the first group to be measured in the air; step 42, measuring the light transmittance of the second group to be measured in air. The invention provides a glue refractive index and absorptivity detection system, which is used for c