Density liquid level measuring device and measuring method thereof

Abstract

The invention discloses a density liquid level measuring device and a measuring method thereof. The density liquid level measuring device comprises a hook-shaped pipe, a semiconductor refrigeration module, a first electromagnetic valve, a first pressure gauge, a second pressure gauge, a liquid level sensor, a temperature sensor, a liquid inlet pipe and a controller, wherein the semiconductor refrigeration module, the first electromagnetic valve, the first pressure gauge, the second pressure gauge and the temperature sensor are in communication connection with the controller. The measuring method comprises the steps of: heating a liquid to be measured to a preset temperature value; acquiring readings of the first pressure gauge, the second pressure gauge and the liquid level sensor; and solving the density by means of a formula P1=P2+rho gh. According to the density liquid level measuring device, the hook-shaped pipe, the pressure gauges, the temperature sensor and the liquid level sensor are used in cooperation, the pressure and the temperature of the liquid to be measured are measured at the same time, and therefore the density of the liquid to be measured can be directly calculated by means of the formula, and the density of the liquid at all temperatures can be detected in real time.

Description

technical field [0001] The invention relates to the field of measuring instruments, in particular to a density liquid level measuring device and a measuring method thereof. Background technique [0002] Density is a measure of mass within a specific volume. Density is equal to the mass of an object divided by its volume, which can be represented by the symbol ρ. In the International System of Units and Chinese legal units of measurement, the unit of density is kg / m 3 No matter in science, industry and agriculture, the density of objects has various applications, such as identifying the types of objects, calculating the composition of various substances contained in objects, judging the fertility of soil, etc. For some known objects, there are density tables For comparison, but for some mixtures, such as mixed liquids, it is necessary to actually measure them. When measuring the density of a liquid, it is directly measured by a density meter, but the accuracy of direct measur...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem of large measurement errors, the present invention provides a density liquid level measurement device and its measurement method

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