本文介绍了利用检测电容的变化来测量液位的一种仪器,该仪器测量精度较高、稳定性好、测量可靠,特别适用干水电站油位和水位的连续测量、报警和自动控制。本文还对现场使用情况作了一些介绍。 This paper introduces an instrument that uses the change of detection capacitance to measure the liquid level. The instrument has high measurement accuracy, good stability and reliable measurement. It is especially suitable for continuous measurement, alarm and automatic control of oil and water level in dry hydropower station. This article also made some introduction to the scene usage.