一种用于液氦超低温温区的温度测量比对装置
By designing a temperature measurement and comparison device with multiple encapsulation interfaces and protective devices, the problem of being unable to compare sensors with different encapsulation forms in the ultra-low temperature range was solved, achieving high-precision and stable temperature measurement, which is suitable for liquid helium ultra-low temperature environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NEW MAGNETIC (SHENZHEN) SUPERCONDUCTING TECHNOLOGY CO LTD
- Filing Date
- 2025-10-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies lack standardized comparison devices specifically for ultra-low temperature ranges, making it impossible to directly compare the measurement accuracy of temperature sensors with different packaging forms, which leads to inconvenience in scientific research and industrial applications.
A temperature measurement and comparison device for the liquid helium cryogenic temperature range was designed, which includes multiple packaging interfaces (MT, LR, CU, SD, BO) and protective devices. It can simultaneously support the comparison and measurement of temperature sensors with multiple packaging forms, and provides a stable cryogenic environment through a radiation shield.
A comparative experiment of temperature sensors with different packaging forms was carried out, which improved the measurement accuracy and reliability, ensured the stability and ease of operation in ultra-low temperature environments, and supported scientific research and industrial applications.
Smart Images
Figure CN224517970U_ABST
Abstract
Claims
1. A temperature measurement comparison device for the liquid helium ultra-low temperature temperature range, comprising a measurement copper block body (1), characterized in that: One end of the measuring copper block body (1) is connected to an inlet pipe (2), and the other end of the measuring copper block body (1) is connected to an outlet pipe (3). The surfaces of the inlet pipe (2) and the outlet pipe (3) are both connected to flanges (4). A comparison device (5) is provided on the surface of the measuring copper block body (1), and a protective device (6) is provided on the surface of the measuring copper block body (1). The comparison device (5) includes an MT package interface (501), which is located on the side of the measuring copper block body (1). The side of the measuring copper block body (1) is also provided with an LR package interface (502). The surface of the measuring copper block body (1) is provided with a CU package interface (503), an SD package interface (504), a CY package interface (505), a BO package interface (506), and a mounting interface (507) at the bottom of the measuring copper block body (1).
2. A temperature measurement comparison device for liquid helium ultra-low temperature range according to claim 1, characterized in that: The MT package interface (501) and the LR package interface (502) are obliquely distributed on the same side edge of the measuring copper block body (1) in the horizontal direction, and the opening directions of the two are consistent.
3. A temperature measurement comparison device for liquid helium ultra-low temperature range according to claim 1, characterized in that: The inner walls of the CU packaging interface (503), SD packaging interface (504), CY packaging interface (505) and BO packaging interface (506) are all provided with positioning protrusions, and the positioning protrusions are distributed at equal intervals along the circumference of the interface.
4. The temperature measurement comparison device for liquid helium ultra-low temperature range according to claim 1, characterized in that: The mounting interfaces (507) are distributed in four identical groups at the bottom of the measuring copper block body (1) in a centrally symmetrical manner, and the axis of each group of mounting interfaces (507) is perpendicular to the bottom surface of the measuring copper block body (1).
5. A temperature measurement comparison device for liquid helium ultra-low temperature range according to claim 1, characterized in that: The protective device (6) includes a radiation shield (601), which is installed on the surface of the measuring copper block body (1). A locking block (602) is fixedly connected to the inner side of the radiation shield (601). A locking groove (603) is opened on the surface of the measuring copper block body (1). A telescopic groove (604) is opened inside the locking block (602). A spring (605) is connected to the inner end of the telescopic groove (604). A limiting plate (606) is connected to the other end of the spring (605). A fixing block (607) is connected to the center of the limiting plate (606). A limiting hole (608) is opened inside the locking groove (603).
6. A temperature measurement comparison device for liquid helium ultra-low temperature range according to claim 5, characterized in that: The card block (602) is fixedly connected to the four corners inside the radiation shield (601). The position of the card block (602) corresponds to the position of the card slot (603), and the outer wall size of the card block (602) matches the inner wall size of the card slot (603).
7. A temperature measurement comparison device for liquid helium ultra-low temperature range according to claim 5, characterized in that: The end of the fixing block (607) away from the limiting plate (606) is designed in a hemispherical shape, and the outer wall of the fixing block (607) is in close contact with the inner wall of the limiting hole (608).