Theoretical and Experimental Research on Measuring Tension by Frequency Method Based on a Testing Machine

Belt drive is an important mechanical drive form, and the tension is an important factor to ensure the normal operation of belt drive. There is a lack of research on the combination of basic theory and experiment in measuring tension with natural frequency of free vibration, this paper studies through two experiments. The first experiment reflects the relationship between tension of experimental machine and other factors, and the second experiment introduces a correction coefficient by processing the measured first-order free vibration frequency, which improves the accuracy of the calculation formula of frequency method. The research results show that the method of calculating tension based on frequency is feasible, and the theoretical relationship and correction coefficient provide theoretical basis for designing tension measuring device based on frequency method.