摘要
为了实现对电力设备进行远程、实时在线温度监测,提出了基于超声测距温度补偿原理的红外在线监测系统方案。系统采用两个步进电机搭建了使红外测温探头运动的云台机械结构,在水平方向步进电机做350°的旋转,在垂直俯仰方向做150?°的旋转,实现对空间监测点的扫描功能;采用高减速比的步进电机和细分驱动技术,提高系统的定位精度,实验表明定位分辨率达到0.004°;采用超声波测量红外测温仪到监测点的距离,为温度测量值的距离修正打下基础。系统采用非接触式红外多点测温,抗干扰能力强,可靠性高,对提高电力设备运行可靠性与稳定性有一定的实用价值。
The infrared online monitoring system based on ultrasonic ranging principle of temperature compensation was designed and developed for realizing remote, real-time and on-line temperature monitoring of the power equipment. A mechanical structure of cradle head installed by two stepping motors was built in order to move, and the stepping motor＇s rotation angle was 350° in the horizontal direction and 150° in the vertical direction. In order to improve the positioning accuracy, the system combined the stepping motor of high reduction ratio with the technology of subdivided driving. The experiment results show that the positioning accuracy is 0.004°. The system used ultrasonic wave to obtain the distance between infrared radiation thermometer and monitoring point, and to lay a good foundation for revising the distance. Noncontact multipoint infrared online monitoring system was adopted in the system. The results indicate that the system has high reliability, anti-jamming and utility to the power equipment.
出处
《电源技术》
CAS
CSCD
北大核心
2015年第2期403-406,共4页
Chinese Journal of Power Sources
基金
上海市教委科研创新项目(11ZZ173
12ZZ176
13YZ102)
上海市科技创新行动计划地方院校能力建设项目(10110502200
11510500900)
关键词
电力设备
红外测温
定位
控制系统
power equipment
infrared radiation thermometer
location
control system
