SU493642A1 - Capacity measuring device - Google Patents

Description

(54) DEVICE FOR MEASURING VOLUME OF CAPACITY

one

The invention relates to a measurement technique, in particular, can be used when measuring the volumes of closed sealed containers.

Known devices of similar designation

; Direct and cross connectors:

the same containers do not provide measurement of volumes with sufficiently high

what degree of accuracy due to errors

measuring instruments. In addition,

 The process is time consuming

and long lasting. :

To improve the accuracy and reduce the complexity of the measurement in the proposed device, the ends of the pipelines, plug-in to identical vessels, are made of transparent material and equipped with measuring scales, and the vessels themselves are connected to the supply line with the working fluid and the lower end of the common pressure head; tube, the upper end of which is communicated with the atmosphere.

In the drawing, the layout of the description is set; Your device.

The device contains two identical vessels 1 and 2 of known volume, communicated by pipelines 3 and 4 with a transparent vertically installed pressure tube 5,

connected to the bottom of the valve 6 with a source of liquid, and above communicated with the atmosphere. Identical vessels 1 and 2 are connected to vertically mounted transparent measuring tubes 7 and 8 and through valves

9 and 10 are communicated with the reference 11 and 12 measurable capacitances. The measuring tubes 7 and 8 are interconnected between each other by intersecting pipes 13 and 14 with valves 15 and 16.

The device works as follows. By opening the valve 6 with the valves 9 and 10 open and the valves 15 and 16 closed, they supply liquid (for example, water) to the porous tube 5, at the same time the liquid

Begins to arrive in communicated with her; Yden egg vessels 1 and 2. Filled vessels 1 and 2, the liquid displaces air from them, respectively, into the reference 11 and measured 12 tanks, in which the build-up increases inversely proportional to the volumes of these containers. Liquid supply is stopped when liquid columns appear in attic tubes 7 and 8. At the same time, the height of the liquid level in tubes 7 and 8 is different, this difference is measured at {eney) (for example, differential pressure). . The pressure drop AR characterizes the deviation of the measured volume from the reference one. Then the liquid is drained from the device, the second measurement is made at a cross connection, i.e., vessel 1 is connected through valve 1 to tank 12 with valve 9 closed, and vessel 2 is through valve 15 with a reference capacitance 11 with a closed valve 10 and the resulting pressure drop U P. is measured. The volume of the measured capacitance is calculated as the arithmetic average value of two measurements using the well-known formula: - the volume of the measured capacitance li at a direct connection; - volume ipM cross capacitance to be measured; - volume of reference container 11, - volume of vessel 1; - volume of vessel 2; - initial pressure (atmospheric); - pressure differential between containers 11 and 12 during direct connection; - pressure drop between containers 11 and 12 at a cross connection. Subject of the Invention A device for measuring the volume of a capacitance containing two identical vessels of a known volume connected to the supply line, connected to the reference and out of (by the capacitance of the pipe with the vents in the forward and cross direction, characterized in that STEPS and reducing the laboriousness of the measurement, in it the ends of the pipelines connected to identical vessels are made of transparent material and are equipped with measuring icals, and the vessels themselves are connected to the main line of food for the working fluid. kostyd and yyzhnim end sheathe pressure tube having an upper end which communicates with the atmosphere.

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