摘要
针对目前检测仪器灵敏度低、检测物质单一等问题,设计了可以对多种物质进行检测的QCM高精度检测仪器。该仪器利用高灵敏度QCM(石英晶体微天平)传感器,以ARM7微处理器LPC2220为核心,实现了2个频率通道、2个交流电压通道、2个温度通道的数据实时采集;实现了数据、曲线的图形化显示;实现了仪表与上位机的实时通信等。系统不仅实现了较高的精度,而且实现了测量过程的智能化。
According to the problems the current instrument＇ s sensitivity is not very high and normally it just can test one kind of substance, a new type of QCM equipment was developed based on QCM（quartz crystal microbalance） transducer, which realized the measure of many different materials with high sensitivity. Its main features include： using LPC2220 with ARM7 kennel to achieve intelligence in testing process ; real-time data acquisition for 2 frequency channels, 2 AC voltage channels, and 2 temperature channels ; LCD display for corresponding data and figures ; real-time data communication with PC. The intelligent system realized measurement with high precision and sensitivity.
出处
《仪表技术与传感器》
CSCD
北大核心
2009年第5期80-82,共3页
Instrument Technique and Sensor
