摘要
文中分析了声表面波谐振器的工作原理,建立了基于TSE G144传感器的谐振型无源无线温度测量系统。该系统可分为硬件系统:包括传感器、信号源、混频器、放大器、收发开关、单片机等模块;软件系统:包括激励发送、回波接收、谐振分析和频率温度计算等。最后,对软硬件系统进行了温度实验测试,不仅测量精度达到了±0.8℃的优良水平,灵敏度也达到了9.2 kHz的高度,显示了测量系统良好的应用和发展前景。
The working principle of surface acoustic wave resonator was analyzed in this paper and resonance-type passive wireless temperature measurement system based on TSE G144 sensor was established. The system was composed of hardware system including sensor, signal sources, mixers, amplifiers, transceiver switches, and microcontrollers, and software system inclu- ding incentive sending, echo receiving, resonance analysis, frequency temperature calculation, etc.. Finally, temperature experi- ment was carried out to test the software and hardware system. The accuracy of measurement is ±0.8℃ and the sensitivity is 9.2 kHz, thus showing good application and development prospect of the measurement system.
出处
《仪表技术与传感器》
CSCD
北大核心
2015年第9期84-86,共3页
Instrument Technique and Sensor
基金
国家自然科学基金项目(51176016)
关键词
传感器
声表面波
温度测量
设计
sensor
surface acoustic wave
temperature measurement
design
