一种用于液位测量系统的新型温度漂移补偿算法。
A Novel Temperature Drift Compensation Algorithm for Liquid-Level Measurement Systems.
作者信息
Li Shanglong, Gao Wanjia, Liu Wenyi
机构信息
Key Laboratory of Micro/Nano Devices and Systems, Ministry of Education, North University of China, Taiyuan 030051, China.
State Key Laboratory of Dynamic, Measurement Technology, North University of China, Taiyuan 030051, China.
出版信息
Micromachines (Basel). 2024 Dec 27;16(1):24. doi: 10.3390/mi16010024.
Aiming at the problem that ultrasonic detection is greatly affected by temperature drift, this paper investigates a novel temperature compensation algorithm. Ultrasonic impedance-based liquid-level measurement is a crucial non-contact, non-destructive technique. However, temperature drift can severely affect the accuracy of experimental measurements based on this technology. Theoretical analysis and experimental research on temperature drift phenomena are conducted in this study, accompanied by the proposal of a new compensation algorithm. Leveraging an external fixed-point liquid-level detection system experimental platform, the impact of temperature drift on ultrasonic echo energy and actual liquid-level height is examined. Experimental results demonstrate that temperature drift affects the speed and attenuation of ultrasonic waves, leading to decreased accuracy in measuring liquid levels. The proposed temperature compensation method yields an average relative error of 3.427%. The error range spans from 0.03 cm to 0.336 cm. The average relative error reduces by 21.535% compared with before compensation, showcasing its applicability across multiple temperature conditions and its significance in enhancing the accuracy of ultrasonic-based measurements.
针对超声检测受温度漂移影响较大的问题，本文研究了一种新型温度补偿算法。基于超声阻抗的液位测量是一种关键的非接触、无损技术。然而，温度漂移会严重影响基于该技术的实验测量精度。本研究对温度漂移现象进行了理论分析和实验研究，并提出了一种新的补偿算法。利用外部定点液位检测系统实验平台，研究了温度漂移对超声回波能量和实际液位高度的影响。实验结果表明，温度漂移会影响超声波的速度和衰减，导致液位测量精度下降。所提出的温度补偿方法平均相对误差为3.427%。误差范围为0.03厘米至0.336厘米。与补偿前相比，平均相对误差降低了21.535%，表明其在多种温度条件下的适用性以及对提高基于超声测量精度的重要性。
Zotero 插件