CAJ | 학술논문

目的：研究光在苹果组织中的漫反射规律,推导出漫射近似方程并通过实验进行验证。方法在理论推导方面,采用漫射近似理论得到漫射近似方程,利用外延边界条件对漫射近似方程进行求解,得到漫反射率；在实验验证方面,采用积分球实验测量得到不同糖度苹果样品的漫反射率和光学参数。结果利用外延边界条件求解漫反射率,不但计算过程简便,而且和实验测得的漫反射率相差很小,二者的最大绝对误差为0.00801,最大的相对误差为9.35%。结论利用漫射近似方程求解漫反射率或反演求其光学参数都是可行的。这一方程为水果内部品质的无损检测提供了理论基础。
목적：연구광재평과조직중적만반사규률,추도출만사근사방정병통과실험진행험증。방법재이론추도방면,채용만사근사이론득도만사근사방정,이용외연변계조건대만사근사방정진행구해,득도만반사솔；재실험험증방면,채용적분구실험측량득도불동당도평과양품적만반사솔화광학삼수。결과이용외연변계조건구해만반사솔,불단계산과정간편,이차화실험측득적만반사솔상차흔소,이자적최대절대오차위0.00801,최대적상대오차위9.35%。결론이용만사근사방정구해만반사솔혹반연구기광학삼수도시가행적。저일방정위수과내부품질적무손검측제공료이론기출。
Objective To studythe optical diffuse regular in apple samples, diffusion approximation equation was obtained and validated by experiment. Methods In terms of theoretical derivation,diffusion approximation equation was derived from the diffusion approximation theory, extension of the boundary condition was applied to solve diffusion approximation equation and obtain diffuse reflectance; in term of experimental verification, diffuse reflectance and optical parameters were measured by integrating sphere experiment under the different brix of apple samples.Results Epitaxial boundary condition was used for solving the diffuse reflectance, and the results showed it was not only calculated simply, but also had small difference compared to the experimental results. The absolute maximum error was 0.00801, the maximum relative error was 9.35%.Conclusion It is feasible to solve diffuse reflectance or seek inversion optical parameters by using the diffusion approximation equation in the apple tissue. The diffusion approximation equation provides theoretical foundation to realize the nondestructive detection of apple brix.