Method and device for liquid density measurement

Abstract

The invention discloses a method for liquid density measurement. The method comprises the following steps: arranging two U-shaped pipes in parallel; filling the first U-shaped pipe with a liquid to beThe invention discloses a method for liquid density measurement. The method comprises the following steps: arranging two U-shaped pipes in parallel; filling the first U-shaped pipe with a liquid to beability, and improve the working efficiency and the measurement reliability.operability, and improve the working efficiency and the measurement reliability. of the first U-shaped pipe and the second U-shaped pipe which are connected with the three-way pipe, and is connected with a processor. The method and the device have simple realization and high oper of the first U-shaped pipe and the second U-shaped pipe which are connected with the three-way pipe, and is connected with a processor. The method and the device have simple realization and highportsmeasured, and filling the second U-shaped pipe with a standard liquid; applying the same pressure to the two U-shaped pipes simultaneously; and reading the pixel difference between the liquid levels measured, and filling the second U-shaped pipe with a standard liquid; applying the same pressure to the two U-shaped pipes simultaneously; and reading the pixel difference between the liquid levelsof the two U-shaped pipes through a camera, converting the pixel difference between the liquid levels into the real difference between the liquid levels, and working out the density of the liquid to bof the two U-shaped pipes through a camera, converting the pixel difference between the liquid levels into the real difference between the liquid levels, and working out the density of the liquid to be measured according to the real difference between the liquid levels and the density of the standard liquid. The invention also provides a device for realizing the method. The device comprises the twe measured according to the real difference between the liquid levels and the density of the standard liquid. The invention also provides a device for realizing the method. The device comprises the two U-shaped pipes arranged in parallel. The U-shaped pipes are communicated through a three-way pipe which is also connected with a rubber ball through a control valve. In addition, the camera aims ato U-shaped pipes arranged in parallel. The U-shaped pipes are communicated through a three-way pipe which is also connected with a rubber ball through a control valve. In addition, the camera aims atports

Description

technical field [0001] The invention belongs to the technical field of density measurement and visual measurement, and in particular relates to a liquid density measurement method and device. Background technique [0002] Density is one of the inherent characteristic parameters of liquid, that is, the mass of liquid contained in each unit volume, and its unit is kilogram / cubic meter or g / cubic centimeter. The measurement of liquid density is of great significance in metrology, scientific research and industrial production. Density meters or experimental methods are now widely used in industry to measure the density of liquids. A density meter is a special instrument for measuring the density of a liquid, which is based on the balance principle of object suspension. For liquids with densities greater than water and less than water, different densitometers should be used for measurement, and the measurement range is relatively small (about 0.7-2.0g / cm 3 within the range). ...

AI Technical Summary

Problems solved by technology

In the measurement with relatively high accuracy requirements, this measurement method with relatively low accuracy and efficiency is obviously difficult to meet the needs

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