无线被动陶传感器用于高温远距离温度测量
Kevin M Tennant1, Brian R Jordan1, Noah L Strader2
1Department of Mechanical, Materials and Aerospace Engineering, West Virginia University, Morgantown, WV 26506, USA.
Sensors (Basel, Switzerland)
|March 13, 2024
概括
使用电陶材料的新型被动无线传感器实现了稳定的温度传感,最高可达1000°C. 这种高温传感器非常适合恶劣环境和远程应用.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 传感器技术 传感器技术
背景情况:
- 高温传感对于恶劣的工业环境至关重要.
- 现有的传感器往往缺乏必要的弹性和无线功能.
- 精选的陶材料提供导电性,高温弹性和化学稳定性.
研究的目的:
- 为远程应用开发一种被动无线高温传感器.
- 为了实现稳定的温度传感,可传感高达1000°C.
- 为了利用电陶材料的性能来制造传感器.
主要方法:
- 使用ANSYS HFSS设计和建模了一个补丁天线,用于2.5-3.5 GHz的操作.
- 在Al2O3基板上使用银 (Ag) 制造的传感器达到600°C,使用氧化物 (ITO) 达到1000°C,通过丝网印刷.
- 在700°C (Ag) 和1200°C (ITO) 烧结传感器,并使用高达0.75米的超宽带插槽天线评估性能.
主要成果:
- 通过基于ITO的传感器实现了高达1000°C的稳定温度传感.
- 观察到的传感器灵敏度在50-1000°C范围内从22到62kHz/°C不等.
- 在询问距离高达0.75米时,注意到灵敏度下降.
结论:
- 开发了一种功能性被动无线高温传感器,适用于苛刻的应用.
- 证明了电陶材料 (Ag和ITO) 对于高温传感的可行性.
- 突出了遥感应用中传感距离和灵敏度之间的权衡.
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