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Design and Characteristic Analysis of Cross-Capacitance Fuel-Level Sensor

机译:交叉电容式油位传感器的设计与特性分析

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摘要

A cross-capacitance liquid level sensor is based on the principle of cross capacitance. This study designed a new single-tube cross-capacitance fuel-level sensor. The fuel-level measurement model is established for a single-tube cross-capacitive sensor, and the relationship between the measured liquid level and sensor output capacitance is derived. The characteristics of the sensor were tested experimentally. The experimental results demonstrate that the linearity error of the liquid-level sensor of the single-tube calculation for the spacecraft is ±0.48%, the repeatability error is ±0.47%, and the hysteresis error is ±0.68%. The cross-capacitive fuel-level sensor developed in this study can be used in the fuel tank of spacecrafts owing to its low weight and high precision.
机译:交叉电容液位传感器基于交叉电容原理。这项研究设计了一种新的单管交叉电容燃油液位传感器。建立了单管交叉电容传感器的油位测量模型,推导了被测液位与传感器输出电容之间的关系。传感器的特性已通过实验测试。实验结果表明,航天器单管计算液位传感器的线性误差为±0.48%,重复性误差为±0.47%,磁滞误差为±0.68%。本研究开发的交叉电容式油位传感器因其重量轻,精度高而可用于航天器的油箱。

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