METHOD FOR MEASURING INTERFACE LEVEL USING A CAPACITIVE INTERFACE LEVEL SENSOR Russian patent published in 2023 - IPC G01F23/26 

FIELD: measuring equipment.

SUBSTANCE: invention is intended for measuring the levels of interfaces between media in various industries. In the method for measuring the interface level, the sensor is calibrated to obtain calibration values ​​of the capacitance difference and the values ​​of the dynamic range of the interface level using a reference medium, and the interface level is measured using a calibrated sensor. In this case, during the measurement, the container is filled with the measured medium to a level at which the longest compensation channel of the sensor is partially immersed in the measured medium, while the measured the environment is different from the reference environment; capacitance values ​​of the main and each compensation measuring channels of the sensor for the capacitance are measured, wherein each measurement of the capacitance value of each compensation measuring channel is carried out taking into account the average correction factor. The obtained capacitance values ​​are used by the microcontroller to determine the relative level of the media interface in accordance with the values ​​of the dynamic range.

EFFECT: technical result is an increase in the reliability and manufacturability of the design and, as a consequence, an increase in the accuracy of measurements of the level of the interface between media. 15 cl, 32 dwg