Modern Electronic Technique

 In order to enhance the authenticity, interactivity, fault diagnosis capability and reference value of the temperature transmitter simulation model, and better support fields such as machine learning and fault diagnosis, a multi-coupling simulation is realized by integrating three simulation platforms: Multisim, LabVIEW and Matlab. In order to verify the reliability of the model, the time-domain parameters of the physical temperature transmitter, the traditional circuit simulation model, and the multi-coupled optimized simulation model are measured and compared by the experiments. Moreover, the differences in the amplitude-frequency characteristics of the two simulation models are compared by means of Fourier transform. The experimental data shows that the data obtained from the two simulation models are very close to those measured from the actual plug-in, with the error not exceeding 0.05, while their time-domain characteristics differ by 8 to 13 orders of magnitude. In terms of amplitude-frequency characteristics, the fluctuation range of the multi-coupled simulation model is 10~8 to 10~10 times that of the traditional simulation model. The obtained parameters are more consistent with actual conditions, and can effectively improve the accuracy of fault diagnosis when applied to neural network training. The experimental results show that the multi-coupling simulation scheme is feasible. It delivers excellent performance in simulating environmental factors, features comprehensive simulation dimensions and powerful extended functions, and boasts great development potential.