高精度微波功率控制技术研究  

Design of High Accuracy Microwave Power Control

作　　者：王健[1] 裴娜[1] 韩晓东[2] 

机构地区：[1]西安工业大学电子信息工程学院,西安710032 [2]西安电力电子技术研究所第3研究室,西安710061

出　　处：《西安工业大学学报》2010年第1期62-66,共5页Journal of Xi’an Technological University

摘　　要：针对微波输出功率控制过程中所出现的精度低、稳定性差等问题,提出了一种基于DSP的高精度微波功率控制技术.系统采用DSP技术及可控硅控制技术,通过改变磁控管阳极高压来调整磁控管阳极电流,实现了对磁控管输出微波功率的精确控制.同时采用A/D转换器及数字化温度传感器,实现了微波输出功率及微波加热效果的实时监测.通过对不同设定参数下测量的微波输出功率数据的比较,得以看出系统性能稳定可靠且输出微波功率控制精度可以达到1%.For the low precision,poor stability of microwave output power control,a DSP-based highprecision microwave power control technology is proposed. DSP technology and SCR control technology are used. The magnetron anode current is adjusted by changing high voltage of magnetron anode to achieve precise control of magnetron microwave output power. Meanwhile A/D converter and digital temperature sensor are used to achieve real-time monitoring the microwave output power and the effect of microwave heating. By means of comparison with different setting parameters in microwave output power, the result shows that the system is stable and reliable. The precision of microwave power output con- trol reaches 1%

关 键 词：DSP 微波加热 磁控管 温度测量 

分 类 号：TN015[电子电信—物理电子学]