Study On The System Of Multi-Temperature Acquisition Based On DSPs

The paper is mainly about the advancement of the data acquisition system(DAS) and the study of the system of multi-temperature acquisition based on DSPs. Through theory calculation of traditional analog integral circuit and error analysis, long-time no-deviation digital integrator and alternative simulative integrator based on DSPs have been designed. The 64-pathway temperature inspecting instrument applied alternative simulative integrator based on DSPs have been made and developed. The 64-pathway temperature inspecting instrument is applied to system of high-speed Multi-Temperature Acquisition ,which is more scientific,systematic and accurate.The system has applied to testing system of refrigerator's refrigeration performance. It has run and in good order whose testing data and curve is credible. Communication of data is both exact and reliable. Economic benefit is remarkable. Practical running result of the system is good.The system has also applied to the data acquisition of other slow signal,which is universal.