Usability evaluation was performed for the collagen fiber thermal deformation analyzer TMA (temperature achine analyzer) user interface using eye-tracking technology, and an optimized design solution was proposed. Taking the existing collagen fiber thermal deformation analyzer TMA interface as a prototype, under experts’ guidance, four design elements were selected, and two user interfaces with different styles were redesigned. Eye movement experiments were performed, eye movement data was collected, and SPSS was employed to conduct data analysis. Combined with questionnaire surveys, the usability was evaluated in terms of background color and layout types of the user interfaces. The analyzer’s program background color and layout types could affect the experience of tested users. The T-shaped layout outperformed the upper and lower frame layout in all aspects. The TMA user interface of the collagen fiber thermal deformation analyzer was optimized by the eye tracking technology. It optimized the deficiencies of the experience-based designers who subjectively designed the original interface, and proposed the design principles for the program of experimental instruments. It could thus shed lights on the concepts for the interactive interface style of the experimental instrument and enhance the soundness and rationality of the design.

"> human-machine interaction, TMA interface of collagen fiber thermal deformation analyzer, eye movement , test, interface optimization