Liquid level measuring device

Abstract

The invention discloses a liquid level measuring device, which is vertically arranged into a container of tested liquid; when a sleeve positioned under the device is in contact with the bottom of the container, the action force of a solid rod in the sleeve on a pressure sensor simultaneously changes; according to the Archimedes principle, a fixed formula relationship between the liquid level and change signals obtained by the pressure sensor can be converted out; the signals are subjected to conversion calculation and are then output to a display screen by a data processing and display module; the liquid level value can be visually obtained; a dismountable connection buckle is designed in the device; the pressure sensor is protected by the dismountable connection buckle; a dismountable sleeve with the larger diameter is coaxially arranged at the outer side of the device, so that the influence of liquid injection or liquid wobbling on the buoyancy of the solid rod can be reduced. The materials and the sizes of the solid rod and the sleeve used in the device can be selected and changed according to the type of the tested liquid and the size of the container; the compatibility is high; the application range is wide; in addition, the size of used equipment is small; the manufacturing price is low; the measuring precision is high.

Description

technical field [0001] The invention relates to the technical field of measurement, in particular to a liquid level measuring device. Background technique [0002] The liquid level refers to the height of the liquid level of the liquid medium in the container. In industrial production, liquid level is a very important parameter. Liquid measurement plays an important role in industrial production, and some even directly affect the safety of production. The liquid level gauge is an instrument for measuring the liquid level. In the actual operation process, there are more and more requirements for liquid level measurement. Different types of liquid level gauges should be selected according to the requirements of different aspects. [0003] In the industrial field, to measure the liquid level, in addition to the static pressure liquid level measurement of the submersible liquid level gauge, there are float liquid level measuring devices, magnetic flap liquid level method, radar...

AI Technical Summary

Problems solved by technology

Some of these devices have low measurement accuracy, and many of them have high requirements on the shape, structure and material of the container. The installation of radar and ultrasonic devices is relatively complicated and the installation volume is relatively large; In terms of operation and maintenance, it is necessary to ensure the watertightness of the sensor and prevent the electrode insulation layer from colliding. Some measured liquids whose dielectric constant changes frequently cannot be measured. Most measuring devices are limited by the performance of the measured liquid and the shape of the container. In order to overcome the above technical limitations Insufficient, now proposes a liquid level measuring device with wide adaptability and easy use

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