Automatic control system design of protein-nucleic acid analytical instrument

As instrumentation development becomes more miniature and intelligent, the control system is at a very important position. Protein-nucleic acid analytical instrument use capillary electrophoresis technology, which is a rapid developing separate analysis technique in the global industry in the late eighties. The analyzer is based on S3C44B0 and it uses feedback control method for real-timely controlling. Firstly, the operator inputs the data in the host computer software. Then, the sample table and waste plate go to the specified position in accordance with the contents being filled. Finally, the inject sample, electrophoresis, or wash sample perform. In the process, to meet specified requirements the temperature control system, voltage control system and pressure control system are adjusted to the corresponding parameters of the injecting, electrophoresis, or washing operation. This creates an execution environment which the experiment needs. The control system achieves a fully automated operation, avoiding the impact of human factors on the result of experiment and improving the accuracy of the experiment. Protein-nucleic acid analytical instrument can be applied in broad field.