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Liquid helium level gauge and use method thereof

A liquid level meter, liquid helium technology, applied in the direction of the liquid level indicator for physical variable measurement, etc., can solve the problems of difficult to feel vibration peaks, measurement is not very easy to achieve, etc., to achieve simple and reliable measurement, simple structure, fast and accurate. The effect of measurement

Inactive Publication Date: 2010-08-25
夏耀民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are many people who do not like this method of measurement, because it is sometimes difficult to feel the vibration peaks with one's fingers, in other words, the measurement is not very easy to achieve

Method used

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  • Liquid helium level gauge and use method thereof
  • Liquid helium level gauge and use method thereof
  • Liquid helium level gauge and use method thereof

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Embodiment Construction

[0037] In order to understand the technical content of the present invention more clearly, the following examples are given in detail. In this case, the same components are provided with the same reference numerals.

[0038] 2-3, the liquid helium level gauge 10 of the present invention includes a handle 1, an elongated member 2 and a special temperature-sensitive color-changing coating 3, and the elongated member 2 includes a first end (not shown) marked) and a second end (not marked), the gripping piece 1 is installed on the first end, and the special temperature-sensitive color-changing coating 3 is coated along the length direction of the elongated piece 2 Coated on the side of the elongated member 2, the color of the special temperature-sensitive color-changing coating 3 at normal temperature is different from that in liquid helium.

[0039] Preferably, the elongated member 2 is an elongated rod or an elongated tube. In a specific embodiment of the invention, said elong...

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Abstract

The invention relates to a liquid helium level gauge, comprising a holding member, a slender member and a special temperature sensing color-varying coating; the holding member is installed at the first end of the slender member; the special temperature sensing color-varying coating is coated on the side surface of the slender member along the length direction of the slender member; the color of the special temperature sensing color-varying coating when at normal temperature is different from that in liquid helium; preferably, the special temperature sensing color-varying coating is stratified silicate coating; the cross section of the slender member is arc-shaped, L-shaped, H-shaped, round, elliptic, semicircular, rectangular, and the like; the special temperature sensing color-varying coating is coated on at least one side surface of the slender member; the side surface of the slender member is provided with a scale label extended from the second end of the slender member to the first end axially. The invention further provides a method for measuring liquid helium level using the liquid helium level gauge. The liquid helium level gauge has smart design, simple structure and convenient use, and is capable of quickly and accurately measuring the liquid helium level; and the liquid helium level gauge is applied to large-scale popularization and application.

Description

technical field [0001] The invention relates to the technical field of measuring devices, in particular to the technical field of liquid level measuring devices, in particular to a liquid helium level gauge and a method for using the same. Background technique [0002] As a matter of common knowledge, liquid helium is the coldest liquefied gas on earth. It is a colorless and odorless liquefied gas at 4.2k (about -269°C), which looks like ordinary pure water. [0003] Because of the huge temperature gradient between its temperature and room temperature, liquid helium must be stored in an invisible (i.e. non-see-through) liquid helium container with at least one layer of high vacuum (10 -6 above) barrier layer to limit heat exchange, and in some cases, a liquid nitrogen barrier layer is also required, so two high-vacuum barrier layers are placed in the container. Because liquid helium evaporates very easily, even in a liquid helium container, under the condition of extremely...

Claims

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Application Information

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IPC IPC(8): G01F23/22
Inventor 夏耀民约瑟夫·W·斯图基
Owner 夏耀民
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