Abstract:In the era of big science, scientific research instruments are closely related to the output of high-end scientific research achievements. As an essential tool to explore the laws of nature, the role of scientific research instruments in scientific research cannot be ignored. In the study, the literature on scientific research instruments in China was analyzed from the perspective of bibliometrics. The knowledge structure of scientific research instruments was revealed through text mining using visual tools and the LDA model. It is found that the number of literature on scientific research instruments is increasing rapidly, the cooperation density of authors is low, and the coverage of research topics on scientific research instruments is expanding continuously. Combining artificial coding and LDA text mining, four themes of scientific research work, scientific research foundation, scientific research equipment, and scientific researchers are determined. Among them, research work and basic research themes account for more in the knowledge structure of scientific research instruments in China. In contrast, the research strength of scientific research equipment and scientific research personnel themes is weak.
