A temperature measuring device for high-temperature confocal microscopy

Abstract

The utility model relates to material high temperature analysis test field especially, it is a kind of temperature measuring device for high temperature confocal microscope, including insulating core (1), sample support assembly (2) is equipped on the insulating core (1), temperature sensor is equipped below the sample support assembly (2), the even silk (5) of temperature sensor is arranged in the inside of the insulating core (1).The utility model through novel structure design makes temperature sensor can directly detect the real temperature of sample crucible, avoids the measurement error while greatly improves the detection efficiency and stability.Meanwhile, the application has low use cost, is easy to process, has greater market promotion value.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature analysis and testing of materials, and in particular to a temperature measuring device for a high-temperature confocal microscope. Background Technology

[0002] High-Temperature Confocal Laser Scanning Microscopy (HT-CLSM) is an indispensable high-end analytical instrument in modern materials science research. It enables in-situ, real-time, and dynamic observation of phase transformations, grain growth, inclusion behavior, and solidification processes in materials at temperatures up to 1700°C or even higher, and is widely used in metallurgy, ceramics, semiconductors, and other fields. However, existing HT-CLSM systems primarily focus on high-resolution real-time imaging and generally lack integrated, high-precision temperature measurement and control modules. Especially when observing the microstructural evolution of molten metals such as molten steel, accurate temperature measurement and stable control have become crucial factors determining the success or failure of the experiment. Most existing detection methods can only detect the ambient temperature within the heating furnace, not the sample temperature.

[0003] Therefore, those skilled in the art are dedicated to developing a temperature measuring device for high-temperature confocal microscopes that can directly, quickly, and accurately measure the temperature of samples. Utility Model Content

[0004] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by this utility model is to provide a temperature measuring device for a high-temperature confocal microscope.

[0005] To achieve the above objectives, this utility model provides a temperature measuring device for a high-temperature confocal microscope, including an insulating core, a sample support assembly on the insulating core, a temperature sensor below the sample support assembly, and a coupler wire of the temperature sensor passing through the interior of the insulating core.

[0006] Preferably, the temperature sensor is a thermocouple.

[0007] Preferably, the temperature sensor is an S-type platinum-rhodium thermocouple or an R-type platinum-rhodium thermocouple.

[0008] Preferably, the sample support assembly includes a support plate, and the support plate is provided with at least one support leg.

[0009] Preferably, the support legs are provided as four, and the four support legs are distributed along the circumference of the support plate.

[0010] Preferably, the insulating core is made of a high-temperature insulating material.

[0011] Preferably, the device also includes a heating furnace, which is provided with a mounting and positioning joint that is sleeved on the end of the insulating core away from the sample support assembly.

[0012] Preferably, the end of the mounting and positioning joint away from the insulating core is slidably connected to a knurled nut, and the knurled nut is provided with an axially extending guide groove.

[0013] Preferably, the mounting and positioning joint is provided with a guide protrusion that mates with the guide groove.

[0014] The beneficial effects of this utility model are: Through its novel structural design, the temperature sensor can directly detect the true temperature of the sample crucible, avoiding measurement errors while greatly improving detection efficiency and stability. Furthermore, this application has low operating costs, is easy to manufacture, and has significant market potential. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention.

[0016] Figure 2 yes Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0017] 1. Insulating core; 2. Sample support assembly; 21. Support plate; 22. Support leg; 3. Mounting and positioning connector; 4. Knurled nut; 41. Guide groove; 5. Couple wire. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific manner. Therefore, they should not be construed as limitations on the present invention. Terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] like Figure 1-2 As shown, this utility model relates to a temperature measuring device for a high-temperature confocal microscope, including an insulating core 1. In this embodiment, the insulating core 1 serves as a mounting base in the form of a hollow sleeve or mandrel. Specifically, the insulating core 1 is made of alumina ceramic to provide an insulating environment; in other embodiments, it can also be made of mica or other similar high-temperature insulating materials.

[0020] The upper part of the insulating core 1 is provided with a sample support assembly 2, which includes a support plate 21. In this embodiment, the support plate 21 is a disc-shaped or specifically shaped carrier made of platinum-rhodium alloy. It is responsible for supporting the sample crucible (not shown in the figure) and, with its excellent thermal conductivity, quickly and evenly conducts the heat from the bottom of the sample crucible to the temperature detection point. To further stabilize the sample crucible and improve its stability, the support plate 21 is also provided with at least one support leg 22. In this embodiment, four support legs 22 are provided, which are distributed around the circumference of the support plate 21. Other embodiments may provide other numbers of support legs 22 according to actual conditions.

[0021] A temperature sensor, which is a thermocouple, is located below the sample support assembly 2. In this embodiment, the temperature sensor is an S-type platinum-rhodium thermocouple. In other embodiments, it can be set to an R-type platinum-rhodium thermocouple depending on the actual situation. The thermocouple wire 5 of the S-type platinum-rhodium thermocouple is threaded inside the insulating core 1. Specifically, the temperature sensing end of the S-type platinum-rhodium thermocouple is metallurgically bonded to the lower surface or side of the support plate 21 by laser welding, capacitor energy storage welding, or high-temperature brazing. This design allows the S-type platinum-rhodium thermocouple to directly sense the temperature of the support plate 21 through heat conduction, thereby indirectly and with high precision measuring the temperature of the sample placed in the sample crucible on the support plate 21. The thermocouple wire 5 of the temperature sensor is led out from the welding point (not shown in the figure), passes through the pre-set wiring holes or channels on the support plate 21 and the insulating core 1, and is finally connected to an external temperature display and recorder (not shown in the figure).

[0022] In this embodiment, the heating furnace (not shown in the figure), as an important component of the high-temperature confocal microscope, is a hollow tubular or cylindrical metal component with a mounting and positioning connector 3 on it. The mounting and positioning connector 3 serves as the mounting base for the insulating core 1 and is sleeved on the end of the insulating core 1 away from the sample support assembly 2. Its hollow structure provides a channel and protection for the threading of the coupling wire 5 and the mounting of the insulating core 1.

[0023] The end of the mounting positioning connector 3 furthest from the insulating core 1 is slidably connected to the knurled nut 4. Specifically, the outer wall of the knurled nut 4 is provided with a guide groove 41 extending axially therein, and correspondingly, the inner wall of the mounting positioning connector 3 is provided with a guide protrusion that mates with the guide groove 41. Through the sliding engagement of the guide groove 41 and the guide protrusion, the knurled nut 4 can move axially along the mounting positioning connector 3, while being restricted from circumferential rotation. The position and state of the insulating core 1 and the sample crucible in the heating furnace can be adjusted by sliding the knurled nut 4.

[0024] In use, the heating furnace heats the sample crucible. Heat is transferred to the sample crucible and support plate 21 through radiation and convection. Due to the excellent thermal conductivity of the support plate 21, its temperature quickly matches the temperature of the bottom of the sample crucible. The temperature sensor directly senses the temperature of the support plate 21 through the temperature measuring point (i.e., the welding point) and converts it into a corresponding millivolt (mV) level electrical signal output. The temperature instrument (not shown in the figure) converts this electrical signal and displays it as a real-time temperature value.

[0025] This invention, through its novel structural design, enables the temperature sensor to directly detect the true temperature of the sample crucible, avoiding measurement errors while significantly improving detection efficiency and stability. Furthermore, this invention is low-cost, easy to manufacture, and has significant market potential.

[0026] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A temperature measuring device for a high-temperature confocal microscope, characterized in that: It includes an insulating core (1), a sample support assembly (2) is provided on the insulating core (1), a temperature sensor is provided below the sample support assembly (2), and the temperature sensor’s filament (5) is inserted inside the insulating core (1).

2. The temperature measuring device for a high-temperature confocal microscope as described in claim 1, characterized in that: The temperature sensor is a thermocouple.

3. The temperature measuring device for a high-temperature confocal microscope as described in claim 1, characterized in that: The temperature sensor is either an S-type platinum-rhodium thermocouple or an R-type platinum-rhodium thermocouple.

4. The temperature measuring device for a high-temperature confocal microscope as described in claim 1, 2, or 3, characterized in that: The sample support assembly (2) includes a support plate (21) and at least one support leg (22) is provided on the support plate (21).

5. The temperature measuring device for a high-temperature confocal microscope as described in claim 4, characterized in that: The support (22) is configured as four, and the four support (22) are distributed around the circumference of the support plate (21).

6. The temperature measuring device for a high-temperature confocal microscope as described in claim 1, characterized in that: The insulating core (1) is made of high-temperature insulating material.

7. The temperature measuring device for a high-temperature confocal microscope as described in claim 1, characterized in that: It also includes a heating furnace, which is provided with a mounting and positioning joint (3), which is sleeved on the end of the insulating core (1) away from the sample support assembly (2).

8. The temperature measuring device for a high-temperature confocal microscope as described in claim 7, characterized in that: The installation positioning joint (3) is slidably connected to a knurled nut (4) at one end away from the insulating core (1), and the knurled nut (4) is provided with an axially extending guide groove (41).

9. The temperature measuring device for a high-temperature confocal microscope as described in claim 8, characterized in that: The mounting and positioning connector (3) is provided with a guide protrusion that cooperates with the guide groove (41).

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