Low-temperature liquid level measuring device

A liquid level measuring device and ultra-low temperature technology, applied in the field of liquid level gauges, can solve the problems of many outgoing wires, enlargement, complicated wiring, etc., and achieve the effects of simple and accurate wiring and control, small heat leakage, and simple wiring.

Inactive Publication Date: 2021-10-08
SHANDONG AOXIN MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there are many lead-out wires and complicated wiring. It is necessary to control two systems of the heater and the measuring device at the same time. The control is cumbersome, and the possibility of heat leakage increases due to the large number of lead-out wires

Method used

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  • Low-temperature liquid level measuring device

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Embodiment Construction

[0025] The core of the present invention is to provide an ultra-low temperature liquid level measuring device, which has fewer lead wires, less heat leakage, and simple and accurate wiring and control.

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] Please refer to figure 1 , figure 1 It is a schematic structural diagram of an ultra-low temperature liquid level measuring device provided in a specific embodiment of the present invention.

[0028] In a specific embodiment, the ultra-low temperature...

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Abstract

The invention discloses a low-temperature liquid level measuring device. The device is used for containing ultralow-temperature liquid in an ultralow-temperature liquid container (4). The device comprises a superconducting wire (2), a heating wire (1), a voltage anode lead, a current anode lead, a voltage cathode lead and a current cathode lead; the lower part of the superconducting wire (2) is inserted into ultralow-temperature liquid and is fixed; the heating wire (1) is wound at the upper end of the superconducting wire (2); the voltage anode lead is connected with a series connection point of the heating wire (1) and the superconducting wire (2); the current anode lead is connected with the other end of the heating wire (1); the voltage cathode lead and the current cathode lead are connected with the lower end of the superconducting wire (2); constant current is introduced between the current anode lead and the current cathode lead, and a voltmeter is connected between the voltage cathode lead and the current cathode lead. The ultralow-temperature liquid level measuring device has the advantages of fewer outgoing lines, simplicity in wiring, low heat leakage and simplicity and accuracy in wiring and control.

Description

technical field [0001] The invention relates to the technical field of liquid level gauges, in particular to an ultra-low temperature liquid level measuring device. Background technique [0002] In order to accurately measure the liquid level in an ultra-low temperature environment, the liquid helium liquid level is measured by using the relationship between the superconducting state and the non-superconducting state of the superconducting wire. Superconductivity refers to the phenomenon that the electrical resistance of a conductor suddenly becomes zero under a certain temperature condition. It is divided into high-temperature superconductivity and low-temperature superconductivity. [0003] The liquid level gauge currently used includes a bushing, a heater and a measuring device. The heater and the measuring device are independent of each other, and there are as many as 6 lead wires, including the current positive lead end, the current negative lead end, the voltage positi...

Claims

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Application Information

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IPC IPC(8): G01F23/22
CPCG01F23/22
Inventor 李培勇张志乾程东芹高沪光刘琦周彤
Owner SHANDONG AOXIN MEDICAL TECH CO LTD
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