關鍵詞:張力檢測 控制 卷繞 Abstract: With the development of industrial production,Tension Control has become many industrial production of materials in the process of winding a key technologies. This paper describes the design of tension Detection System real-time, highly accurate detection, can be widely used in many industrial production-line testing. This paper first resistance strain sensor tension detection system design for the feasibility analysis, After the system hardware and software design. In hardware design, this tension detection of the principle of the circuit characteristics for analysis and presentation of his performance. Introduced the SCM system is at the core of the pressure sensor signal acquisition and processing, and LED show. In software design program, In this paper, the software process to do a detailed explanation and expounded the MCS-51 series 89 C51 microcontroller software design general method. Finally, the tension of this detector design simulation and debugging.