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Constant-volume container and using method thereof

A container and constant volume technology, applied in the field of volume measurement, can solve the problems of low measurement accuracy, many error factors, poor repeatability, etc., and achieve the effect of simple cleaning process, simple operation and simple operation.

Inactive Publication Date: 2014-02-26
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems of low measurement accuracy, many error factors, difficult operation and poor repeatability when using jars to measure volume, the present invention aims to provide a constant volume container and its use method

Method used

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  • Constant-volume container and using method thereof
  • Constant-volume container and using method thereof
  • Constant-volume container and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1 constant volume container of the present invention

[0033] The structure diagram of the constant volume container (including the constant volume container 1 and the constant volume container cover 2 without the liquid level positioning cover) of the present invention is as follows figure 1 As shown in the real photo figure 2 , 3 , 4. The constant volume container 1 with the liquid level positioning cover removed is a cylindrical container, the liquid level positioning cover 2 is provided with a water injection port 3, and the container mouth is provided with an overflow port 4.

[0034] The constant volume container of this embodiment has an inner diameter of 75 mm, an outer diameter of 81 mm, a height of 63 mm, a wall thickness of 3 mm, and a liquid level positioning cover of 3 mm in thickness. The overflow port 4 is 3 mm deep and 5 mm wide, and is cut inward at 45°; the lower port diameter of the water injection port 3 is 2 mm, and the upper port dia...

Embodiment 2

[0036] Embodiment 2 uses the equipment used when the volume of the constant volume container of the present invention is measured

[0037] The structure diagram of the equipment used when using the constant volume container of the present invention to measure the volume is as Figure 5 As shown, it includes a constant volume container (see Example 1), a weighing device 5, an electronic balance (Shanghai Zhuojing Electronic Technology Co., Ltd., model: BSM-5200.2), a water injection device dropper 6 (common glass glue commonly used in laboratories head dropper).

Embodiment 3

[0038] Embodiment 3 Determination of the constant volume container volume of the present invention

[0039] See Example 2 for the equipment used.

[0040] To determine the volume of a constant volume container:

[0041] Take an appropriate amount of distilled water and pour it into a constant volume container. When the injected water is close to filling the container, cover the constant volume container with a liquid level positioning cover, and then continue to slowly add distilled water through the water injection port on the liquid level positioning cover until the constant volume Stop when water drops appear at the overflow at the upper end of the side wall of the container. Then wipe off the remaining water stains on the container wall with absorbent paper, and then place it on an electronic scale for weighing. At 4°C, the density of water is 1.000g / cm 3 , in the case of little temperature change, the density of water can be approximated as 1.000g / cm 3 . The volume o...

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Abstract

The invention provides a constant-volume container which comprises a container body and a liquid surface positioning cover arranged at the upper end of the container body, wherein the container body has a regular shape and is unlikely to deform. A water filling port is arranged on the liquid surface positioning cover, and a water overflowing port is arranged on the opening of the container body. By arranging the liquid surface positioning cover at the upper end of the container body, the volume of the container body is controlled to be constant. Liquid is filled into the constant-volume container through the water filling port, and the water overflowing port is used for discharging liquid beyond the volume of the constant-volume container. The invention further provides a using method of the constant-volume container. The using method comprises steps of (1) accurately measuring liquid for a certain volume, or (2) measuring the volume of solid and / or liquid. The constant-volume container can accurately measure the liquid for a certain volume, accurately measure volume of any liquid, solid or solid-liquid mixtures, and provide basic conditions for actual application problems such as physical and chemical experiments, geotechnical survey and the like. Furthermore, the measurement operation process of the constant-volume container is simple and easy, and the constant-volume container is good in function stability, capable of saving time and labor and high in measurement precision.

Description

technical field [0001] The invention relates to volume measurement, in particular to a constant volume container and its usage method. Background technique [0002] Currently, measuring cups, measuring cylinders, jars, etc. are commonly used to measure the volume of liquids. However, due to the effect of the surface tension of the liquid, there are inevitable accidental errors in the measured liquid volume, resulting in low measurement accuracy and poor repeatability. In addition, some liquid volume meters can obtain a certain volume of liquid by weighing the liquid mass when measuring the volume of a single liquid, so if the measured liquid substance is not a single liquid but a solid-liquid mixture, it cannot Using this weighing method for measurement has certain limitations in the measurement range. In addition, when some instruments measure the volume of a solid-liquid mixture, it is not easy to put a larger solid sample into or out of the bottle, resulting in a cumber...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F19/00
Inventor 雷廷武马玉莹
Owner CHINA AGRI UNIV
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