基于共平面集成LGS的温度,压力和湿度SAW传感器
Xiaorui Liang1,2, Lei Zhang1,2, Qiulin Tan1,2
1State Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan, 030051 China.
Microsystems & nanoengineering
|September 13, 2023
概括
这项研究引入了一个小型的表面声波 (SAW) 传感器,用于同时测量温度,压力和湿度 (TPH). 这种新型传感器在具有挑战性的环境中表现出高灵敏度和快速响应.
科学领域:
- 材料科学 材料科学 材料科学
- 传感器技术 传感器技术
- 纳米技术 纳米技术
背景情况:
- 准确的多参数环境传感对于各种应用至关重要.
- 开发能够同时测量温度,压力和湿度 (TPH) 的集成传感器存在重大挑战,特别是在复杂的环境中.
- 现有的传感器经常在交叉干扰和有限的检测范围方面扎.
研究的目的:
- 开发一个小型的多参数表面声波 (SAW) 传感器,用于同时检测温度,压力和湿度 (TPH).
- 为了提高湿度感应性能,使用一种新的复合材料.
- 解决和减轻不同测量参数之间的交叉合问题,以提高精度.
主要方法:
- 使用湿蚀,高温粘合和离子束蚀刻 (IBE) 制造基于兰加石 (LGS) 的 SAW 传感器.
- 整合一个MXene@MoS2@Go (MMG) 复合材料,以增强湿度传感能力.
- 为 Δf-温度合因子开发解策略,以尽量减少参数干扰.
主要成果:
- 开发的TPH传感器具有广泛的操作范围:温度为25-700°C,压力为0-700kPa,湿度为10-98%的RH.
- 该MMG复合物显著改善了湿度灵敏度,反应时间快3.18秒,恢复时间为0.94秒.
- 通过有效地分离 Δf-温度合因子,可以提高同时测量的准确性.
结论:
- 基于LGS的SAW传感器与MMG复合材料提供了一个强大的解决方案,用于多参数环境监测.
- 传感器在广泛的温度,压力和湿度范围内表现出稳定而准确的性能.
- 这项技术有可能用于需要在苛刻条件下同时测量环境参数的应用.
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