介绍了谐振式水位传感器的新型传感原理,传感器的结构,数字振荡电路的特点. 阐述了水位与频率的对应关系。 关键词: 水位传感器; 频率; 谐振 Abstract : The principle of new resonator water level sensor is mainly introduced. The internal structure of this sensor and the characteristic of numeral oscillation circuit are analyzed in details. The relationship between fre2 quently and water level is expounded. Key words :water level sensor ; frequently ; resonance