| 摘要 |
A method and device for measuring the liquid volume of a nonmetal container, the device comprising a detection IC circuit, an MCU and at least two capacitive sensors; the detection IC circuit is connected to each capacitive sensor, and is connected to the MCU via a first communication interface; the at least two capacitive sensors are made of copper foil arranged on a soft PCB, and respectively have a protrusion part and a recessed part; the protrusion part of one capacitive sensor extends into the recessed part of neighboring capacitive sensor, such that the neighboring capacitive sensors are mutually interleaved. The method and the device realize a seamless measurement, has a high measurement precision, and can recognize a current liquid level when restarting after a power down. |
