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智能水位计的研制成功，主要解决了供水企业深井水位（或液位）的测量问题，它取代了以往用万用表测量水位的“欧姆”法。智能水位计主要由压阻传感器（探头）和二次仪表组成，本文主要介绍二次仪表的构成原理、主要优点和推广前景。
The successful development of intelligent water level meter mainly solves the measurement problem of deep water level (or liquid level) in water supply enterprises. It replaces the “ohm” method of measuring water level with multimeter in the past. The intelligent water level gauge mainly consists of a piezoresistive sensor (probe) and a secondary instrument. This paper mainly introduces the principle, main advantages and promotion prospects of the secondary instrument.