The outer mouth difference in diameter is an important index to measure the quality of daily ceramics. Aiming at the quality inspection of daily-use ceramics with round mouth, an automatic system was designed to detect the outer mouth diameter. Different from the traditional outer diameter positioning detection of bearing parts, a non-positioning detection method was proposed in this work. By building an automatic detection device under embedded system, the outer mouth diameter is detected with a displacement sensor under visual guidance. The experimental results indicated that the non-positioning automatic device exhibited a promising effect, with rapid detection. The measurement accuracy is 0.1 mm and the time for measuring a piece of daily ceramic is 20 s, thus ensuring the accuracy and the quality inspection efficiency.

In order to realize computer-aided modelling design of ceramic bottle driven by semantic parameters, the effective mapping relationship between the perceptual image and modelling elements of ceramic bottle is studied by taking the local modelling elements of ceramic bottle as the starting point. A questionnaire survey and cluster analysis were used to extract a typical semantic vocabulary of perceptual imagery. The quantitative relationship between perceptual image and ceramic bottle modeling elements was established by quantitative theory I. Using this relationship as a criterion, a new ceramic bottle model was generated based on a vocabulary of perceptual imagery, while a satisfaction survey was conducted on the new model to verify the validity of the method. It was found that the accuracy of this method can reach 83.2% according to the image vocabulary of "exquisite-rough" as an example.

To explore accurate numerical simulation methods for fracture of ceramic slates, their mechanical parameters were obtained using three-point bending tests, thus leading to isotropic characteristics of mechanical properties on the plane. The C3D6 unit was determined to be the calculation unit after comparing the three finite element simulation results. The calculation results of six groups of ceramic slate were compared with the experimental data, with the maximum error to be 8.9%. The reliability of the model and the accuracy of the mechanical parameters are verified. Finally, the stress analysis of ceramic slate under edge constraints was performed using this model and the variation rule of their maximum bearing capacity was obtained, thus offering an analytical basis for the application of ceramic slates.