A device and method for measuring liquid density using volumetric strain

Abstract

The invention discloses a device and method for measuring liquid density by using volumetric strain, which comprises a glass cylinder and a glass slender cylinder. The bottom side of the glass cylinder communicates with the bottom of the glass slender cylinder to form a connecting pipe. A rubber ball is arranged in the cylinder, and the rubber ball is connected to the tension sensor through a thin rope net, and the tension sensor is connected to the bottom of the glass cylinder through a fixing device. The invention has simple and reasonable structure, convenient disassembly and installation, and low production cost, and can effectively solve the defects of existing experimental devices such as complex structure, difficult installation and disassembly, troublesome use and high cost. And when the measured liquid fills the glass cylinder, another set of data is measured, and the density of the tested liquid can be obtained by using the measured two sets of data according to known equations.

Description

technical field [0001] The invention relates to a device and method for measuring liquid density, in particular to a device and method for measuring liquid density by volume strain. Background technique [0002] In many industries such as chemical industry, oil refining, pharmaceutical, light industry, food and energy, it is often necessary to know the density of the liquid in the container for process design or analysis. At this time, if the liquid is a pure substance, it can be obtained by consulting the manual or analytical formula, but if the liquid is a mixture of multi-components or a solution of different concentrations, it is more difficult to obtain it by consulting the manual or calculation, especially at very high temperature. Under working conditions, density data are more difficult to obtain. [0003] Traditional density measuring instruments mostly use densitometer method, weighing method and balance measuring cylinder method to measure. The measurement proces...

AI Technical Summary

Problems solved by technology

At this time, if the liquid is a pure substance, it can be obtained by consulting the manual or analytical formula, but if the liquid is a mixture of multi-components or a solution of different concentrations, it is more difficult to obtain it by consulting the manual or calculation, especially at very high temperature. Under operating conditions, density data are more difficult to obtain

[0003] Traditional density measuring instruments mostly use densitometer method, weighing method and balance measuring cylinder method to measure. The measurement process is more complicated and the measurement results have large deviations. However, large-scale precision instruments are used to measure liquid density, and the operation is more complicated and the measurement cost is higher. , in some cases it is not applicable

Images