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The rapid development of internet technology has greatly changed people’s life style and working way, representing the trend of the times. It also profoundly affects people’s world outlook, the outlook on life and values. The internet brings not only good opportunities, but also severe challenges to ideological and political education work. Carrying out the ideological and political education work in internet age, has very important practical significance. This paper will analyze the necessity and existing problems of colleges’ ideological and political education in internet age, and put forward the corresponding reform measures, which can provide references for education work going on smoothly.

In order to improve the reliability of the Composite Optical Encoder during wide temperature range, we have designed a new code slot of the Composite Optical Encoder with high precision. Firstly we will show the causations which influence the code slot to correct the coarse code. Secondly, we will reckon the range of the coarse code caused by the width of the code slot. Finally, we will design the code slot of the Composite Optical Encoder. It is proved that the new code slot could make the coarse signal steady and reliable during −40°C∼+60°C. That is very important to improve the stabilization and the reliability of the Composite Optical Encoder.