摘要
本文介绍了一种在洗煤过程中非常有用的新的磁介质密度测量方法。传感器的激励信号为三角波电流,响应信号波形转换可以消除传感器电阻引起的温度漂移并提高传感器的抗干扰能力。为增强传感器的机械强度,其结构采用将传感器内置于不锈钢管中,并在不锈钢管切开切口来消除涡电流。本文列出了线性试验及温度试验结果,在洗煤厂的使用表明磁介质密度测量性能稳定且能满足洗煤过程需要。
A new method of magnetic medium density measurement is described, which is very useful for the coal washing process. The exciting signal is triangle wave current. The application of response signal wave transform can eliminates the temperature drift caused by the sensor resistance and increases the ability of anti interference. For increasing the sensor mechanical strength, the sen- sor structure is improved by putting the sensor in a stainless steel pipe. A slit to eliminate the eddy current in stainless s...
出处
《微计算机信息》
北大核心
2008年第1期123-125,共3页
Control & Automation
基金
河北省科学技术研究与发展计划(05212104D)
关键词
磁介质
磁介质密度传感器
重介质洗煤
Magnetic medium
Magnetic medium density sensor
Dense medium coal washing
