基于微波检测技术的卷烟机烟支重量控制系统设计

目前国内外高速卷烟机的烟支重量控制系统主要基于核扫描头进行烟支重量检测与反馈。由于扫描头采用的是放射性材料,因而在实际运行过程中系统对操作人员始终存在辐射危险;此外,控制系统还可能存在隐性不稳定性。采用微波检测技术,利用不同烟支在微波电磁场引起的能量参数变化来检测腔体中的烟条密度及水分含量,最终通过检测烟丝条的重量及含水量,实现对烟支重量的有效控制。试验结果有效验证了算法的有效性和可行性。

Design of cigarette weight control system based on microwave detecting technoloty

At present the cigarette weight control system of high-speed cigarette machine is mainly used the techology of nuclear scanning for cigarette weight testing or feedback at home and abroad. The scanning head is used by radioactive material, so there is always exiting the danger of radiation to operators in actual operation system. In addition, recessive instability also existed in the control system. With the microwave detection technology, the energy parameter change caused by cigarettes in the microwave electromagnetic field was used to detect cavity density and moisture content of the tobacco rod. The weight and moisture content of the tobacco rod was detected and the cigarette weight was then controlled. The experimental results demonstrated the effectiveness and feasibility of the algorithm.