Shenzhen Mindray Bio-medical Electronics Co., Ltd.

Qilin Liu

Wei Li

Xingcal Zhu

The present application discloses a method and apparatus for detecting liquid level with probe, and the method comprising steps of: (A) acquiring a capacitance value of the probe; (B) generating an analog signal corresponding to the acquired capacitance value; (C) converting the generated analog signal into discrete signals at a predetermined sampling interval; (D) increasing or decreasing a counting value according to an amplitude of each the discrete signals, and outputting a liquid level contacting indication signal when the counting value reaches a predetermined counting threshold; and (E) controlling a movement of the probe according to the output liquid level contacting indication signal.

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Nanshan, China

Qilin Liu