Anti-drifting high-precision liquid level meter

The utility model discloses a high-precision liquid level meter with an anti-drifting function. The high-precision liquid level meter comprises a working barrel and a mounting mechanism, a sliding rail is fixedly connected to the rear end of the working barrel, sliding blocks are slidably connected to the upper end and the lower end of the sliding rail, mounting discs are fixedly connected to the rear ends of the sliding blocks, a control bin is fixedly connected to the upper end of the working barrel, and an ultrasonic distance measuring sensor is arranged at the upper end of the working barrel; the mounting mechanisms are uniformly arranged in the mounting disc; the high-precision liquid level meter further comprises a single-chip microcomputer, the single-chip microcomputer is arranged on the inner wall of the control bin, the ultrasonic distance measuring sensor is electrically connected with the single-chip microcomputer in a bidirectional mode, and the input end of the single-chip microcomputer is elect