相关实验视频
Updated: Jun 12, 2025

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In Situ Soil Moisture Sensors in Undisturbed Soils
Published on: November 18, 2022
6.1K
在深井的压力转换器测量变量选横跨平面水表
1INTERA Incorporated, 3240 Richardson Road, Suite 2, Richland, WA, 99354, USA.
Ground water
|September 18, 2024
概括
由于气压差异,通风式压力传感器可以不准确地测量水位. 在深井中使用非通风传感器可以通过避免这些大气压波动来提供更准确的水位监测.
科学领域:
- 水文地质学 水文地质学
- 环境监测 环境监测
- 地质物理学 地质物理学
背景情况:
- 深井的自动水位测量可能会受到气压的影响.
- 透气式压力传感器可能会显示出更大的变化,原因是井口和陆地表面之间的压力不平衡.
研究的目的:
- 为了研究通风与非通风压力传感器的精度,用于水位测量.
- 为了确定通风传感器读数变化增加的原因.
主要方法:
- 在两个深井中同时安装和运行通风和非通风压力传感器.
- 收集手动水位测量数据以进行比较.
- 下洞气压与气象站数据的比较.
主要成果:
- 透气式传感器在应对气压变化的反应中显示出比非透气式传感器和手动测量更大的变化.
- 井口气压反应与表面测量相比时间滞后和减弱.
- 供应给通风传感器的参考压力并不代表井口内部的空气压力.
结论:
- 深井的气压不平衡导致通风传感器水位测量的不准确性.
- 非通风式压力传感器为在这样的环境中精确监测水位提供了可靠的解决方案.
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