High-temperature-resistant thermal instrument based on composite ceramic sensing and micro-channel heat dissipation

Abstract

The invention discloses a high-temperature-resistant thermal instrument based on composite ceramic sensing and micro-channel heat dissipation, and the thermal instrument comprises a thermal instrument body, the side surface of the thermal instrument body is connected with a plurality of air inlet pipes in a penetrating manner, the inner surface of the thermal instrument body is communicated with a flow gathering housing through the plurality of air inlet pipes, the rear end of the flow gathering housing is communicated with an air bellow, and the air bellow is communicated with an air outlet of the thermal instrument body. An air draft assembly is arranged in the air bellow, the upper surface and the lower surface of the air bellow are communicated with a plurality of exhaust pipes, and the exhaust pipes penetrate to the outside of the thermal instrument body. A micro-channel heat pipe is fixedly connected to the inner surface of the thermal instrument body, and through the components, through double attachment of the micro-channel heat pipe, the flow gathering housing and the exhaust pipe, in combination with the liquid metal phase change heat conduction layer and in cooperation with the airflow gathering design of the funnel-shaped flow gathering housing, the heat dissipation efficiency is greatly improved, and core components are prevented from being damaged by high temperature; the cleaning assembly automatically cleans the inner wall of the flow gathering housing through airflow and a spring, long-term and efficient heat exchange is guaranteed, and maintenance is reduced.

Description

Technical Field

[0001] This invention relates to the field of thermal instrumentation technology, and in particular to a high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation. Background Technology

[0002] High-temperature thermal instruments based on composite ceramic sensing and microchannel heat dissipation are used for precise temperature measurement in high-temperature industrial environments (such as metallurgical and chemical furnaces). They can monitor the ambient temperature in real time and transmit the data to the terminal, ensuring the safety and efficiency of industrial production.

[0003] Traditional thermal instruments have many problems in high-temperature scenarios: insufficient heat dissipation efficiency, a single heat exchange structure is difficult to quickly dissipate heat, making core components susceptible to high-temperature damage; heat dissipation channels are prone to dust accumulation, requiring frequent manual cleaning to maintain heat exchange effect, increasing maintenance costs; poor temperature measurement accuracy, nonlinear error in high-temperature areas often exceeds ±3%, and signal transmission relies on wired methods, resulting in poor adaptability. Summary of the Invention

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation, which solves the problems of low heat dissipation efficiency, frequent maintenance due to dust accumulation failure of the heat exchange structure, and large temperature measurement error of the existing thermal instruments in high-temperature environments.

[0005] This invention also provides a high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation, comprising: a thermal instrument body, wherein multiple air inlet pipes are connected through the side surface of the thermal instrument body, a converging shroud is connected to the inner surface of the thermal instrument body through the multiple air inlet pipes, a wind box is connected to the rear end of the converging shroud, an exhaust assembly is disposed inside the wind box, multiple exhaust pipes are connected to the upper and lower surfaces of the wind box, and the exhaust pipes extend to the outside of the thermal instrument body; a microchannel heat pipe is fixedly connected to the inner surface of the thermal instrument body. The heat dissipation end of the microchannel heat pipe is in contact with the side surface of the concentrator housing and the wall of the exhaust pipe. When airflow enters, primary heat exchange is achieved through the contact between the heat dissipation end of the microchannel heat pipe and the side surface of the concentrator housing, and secondary heat exchange is achieved through the contact between the heat dissipation end of the microchannel heat pipe and the wall of the exhaust pipe. A phase change heat-conducting layer is provided at the contact point between the heat dissipation end of the microchannel heat pipe and the side surface of the concentrator housing and the wall of the exhaust pipe. Multiple cleaning components are provided inside the thermal instrument body, and the multiple cleaning components are slidably connected to the inner wall of the concentrator housing. An intelligent processing unit is provided inside the thermal instrument body.

[0006] According to the high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation of the present invention, the current-concentrating shroud is funnel-shaped, and the phase change heat-conducting layer is made of Ga-In-Sn liquid metal alloy.

[0007] According to the high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation of the present invention, the exhaust assembly includes: a duct and a fan blade. The duct is connected through the front surface of the air box and communicates with the concentrator shell. The fan blade is rotatably connected to the inner surface of the duct. A motor is fixedly connected to the rear surface of the air box, and the fan blade is fixedly connected to the output end of the motor.

[0008] According to the high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation of the present invention, the cleaning component includes: two slide rails and a brush. The two slide rails are fixedly connected to the inner wall of the current-concentrating shroud, and the brush is slidably connected between the two slide rails and is in contact with the current-concentrating shroud.

[0009] According to the high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation of the present invention, the cleaning assembly further includes: a swing plate, a pull rod, a side plate, and a spring. The swing plate is hinged to the inner surface of the thermal instrument body and is located above the fan blades. When the fan blades are drawing air, the airflow can be used to push the swing plate to pull the pull rod and drive the brush to move. One end of the pull rod is hinged to the upper surface of the swing plate, and the other end is hinged to the lower surface of the brush. The side plate is fixedly connected to the inner surface of the thermal instrument body, and the spring is fixedly connected between the side plate and the swing plate.

[0010] According to the high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation of the present invention, the upper and lower surfaces of the thermal instrument body are provided with slots, and the slots are detachably connected to a flow guide. The air outlet of the exhaust pipe is located inside the flow guide, and the flow guide can prevent hot air from being discharged to the air inlet pipe.

[0011] According to the high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation of the present invention, the intelligent processing unit includes: a nonlinear correction module for correcting measurement errors of temperature signals under high-temperature environments and ensuring data accuracy; a wireless transmission chip for realizing wireless transmission and remote monitoring of temperature data; and a composite sensing module for directly contacting or sensing the high-temperature environment and converting the temperature signal into a measurable electrical signal. The composite sensing module includes: a zirconia substrate for providing a high-temperature resistant physical basis and directly sensing temperature; and a platinum-rhodium alloy electrode for converting the temperature change sensed by the zirconia substrate into a measurable electrical signal.

[0012] According to the high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation of the present invention, the nonlinear correction module executes a nonlinear temperature compensation algorithm based on the Arrhenius equation.

[0013] According to the high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation of the present invention, the nonlinear temperature compensation algorithm formula is specifically as follows: In the formula: This represents the actual temperature value after compensation, i.e., the final accurate temperature output. This represents the raw temperature signal detected by the composite sensing module, the initial measurement value before error correction; This is a constant term with a value range of 0.15±0.03, used to correct nonlinear deviations caused by changes in material properties under high-temperature conditions; This is the temperature coefficient, with a value of 0.008 / ℃, reflecting the rate at which temperature changes affect error correction. The reference temperature is set at 550℃, which is the critical temperature point used in the algorithm to define a significant change in nonlinear error. It is the natural constant (approximately 2.718), used as the base of the exponential function to construct a nonlinear correction model based on temperature changes.

[0014] Beneficial effects: This technical solution, based on composite ceramic sensing and microchannel heat dissipation, is a high-temperature resistant thermal instrument. By attaching the heat dissipation end of the microchannel heat pipe to the side surface of the flow-concentrating shroud and the wall of the exhaust pipe, combined with the high thermal conductivity of the Ga-In-Sn liquid metal alloy phase change heat-conducting layer, a dual heat dissipation effect of "one-time airflow circulation and two-time heat exchange" is formed, which can significantly improve the heat removal efficiency. In addition, the funnel-shaped flow-concentrating shroud's converging design can gather the airflow from multiple air inlets. After being pressurized by the exhaust component, the airflow can be discharged along the exhaust pipe at a faster speed, further improving the heat removal efficiency and avoiding damage to the core components of the instrument from high temperatures. The cleaning component uses the airflow generated by the fan blades and the spring to repeatedly push the swing plate, which drives the brush to slide along the slide rail, automatically cleaning the dust and impurities on the inner wall of the heat exchange shroud. This prevents dust accumulation from hindering heat transfer, ensures the long-term efficient operation of the heat exchange structure, and reduces the frequency of manual maintenance. The composite sensing module features a zirconia substrate that is resistant to high temperatures and directly senses temperature, while platinum-rhodium alloy electrodes stably convert electrical signals. The nonlinear correction module corrects nonlinear errors in the high-temperature region (traditional errors > ±3%) using an algorithm based on the Arrhenius equation, ensuring data accuracy. The wireless transmission chip enables remote monitoring, adapting to the intelligent needs of high-temperature industrial scenarios. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a front view structural diagram of the high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation of the present invention. Figure 2 This is a front cross-sectional view of the high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation of the present invention. Figure 3 This is an enlarged structural diagram of the cleaning component of the high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation of the present invention. Figure 4 This is a right-side cross-sectional view of the high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation of the present invention. Figure 5 This is a rear cross-sectional view of the high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation of the present invention.

[0016] Figure 6 This is a bottom view of the high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation of the present invention.

[0017] Figure 7 This is a flowchart of the intelligent processing unit of the high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation of the present invention.

[0018] Legend: 1. Thermal instrument body; 2. Draft shield; 3. Slot; 4. Phase change heat conduction layer; 5. Inlet pipe; 6. Air box; 7. Air duct; 8. Fan blade; 9. Condensing shroud; 10. Microchannel heat pipe; 11. Motor; 12. Slide rail; 13. Swing plate; 14. Side plate; 15. Brush; 16. Pull rod; 17. Spring; 18. Exhaust pipe. Detailed Implementation

[0019] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0020] Reference Figure 1-2 The present invention relates to a high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation, comprising: a thermal instrument body 1. Considering the air intake issue, multiple air intake pipes 5 are connected through the side surface of the thermal instrument body 1. The inner surface of the thermal instrument body 1 is connected to a flow-concentrating shroud 9 through the multiple air intake pipes 5. The flow-concentrating shroud 9 is funnel-shaped, and the rear end of the flow-concentrating shroud 9 is connected to a wind box 6. External airflow is introduced through the air intake pipes 5 and converged by the flow-concentrating shroud 9 to provide stable airflow for heat dissipation, thereby achieving the effect of concentrated airflow to enhance heat dissipation. Reference Figure 2Considering the low efficiency of single heat exchange and its inability to cope with high temperatures, an exhaust component is installed inside the air box 6. Multiple exhaust pipes 18 are connected to the upper and lower surfaces of the air box 6, and the exhaust pipes 18 extend to the outside of the thermal instrument body 1. A microchannel heat pipe 10 is fixedly connected to the inner surface of the thermal instrument body 1. The heat dissipation end of the microchannel heat pipe 10 is in contact with the side surface of the flow-concentrating shell 9 and the pipe wall of the exhaust pipe 18. When the airflow enters, primary heat exchange is achieved through the contact between the heat dissipation end of the microchannel heat pipe 10 and the side surface of the flow-concentrating shell 9, and secondary heat exchange is achieved through the contact between the heat dissipation end of the microchannel heat pipe 10 and the pipe wall of the exhaust pipe 18, thus achieving the effect of efficient heat dissipation. Reference Figure 1 , Figure 4 , Figure 5 Considering the problem of insufficient thermal conductivity of the heat exchange contact surface, a phase change thermal conductive layer 4 is provided at the contact point between the heat dissipation end of the microchannel heat pipe 10 and the side surface of the current-collecting shroud 9 and the wall of the exhaust pipe 18. The phase change thermal conductive layer 4 is made of Ga-In-Sn liquid metal alloy, which enhances heat transfer by utilizing its high thermal conductivity, thereby achieving the effect of improving heat exchange efficiency. Reference Figure 3 Considering the problem of dust accumulation on the inner wall of the concentrator shroud 9 affecting heat exchange, the thermal instrument body 1 is equipped with multiple cleaning components. These cleaning components are slidably connected to the inner wall of the concentrator shroud 9. Each cleaning component includes two slide rails 12 and a brush 15. The two slide rails 12 are fixedly connected to the inner wall of the concentrator shroud 9, and the brush 15 is slidably connected between the two slide rails 12. The brush 15 is in contact with the concentrator shroud 9, and the brush 15 can slide along the slide rails 12 to clean the dust on the inner wall of the concentrator shroud 9, thereby achieving the effect of keeping the heat exchange surface clean. Reference Figure 3 Considering the driving problem of the brush 15, the cleaning assembly also includes: a swing plate 13, a pull rod 16, a side plate 14, and a spring 17. The swing plate 13 is hinged to the inner surface of the thermal instrument body 1 and is located above the fan blade 8. When the fan blade 8 is drawing air, the airflow can push the swing plate 13 to pull the pull rod 16 and move the brush 15. One end of the pull rod 16 is hinged to the upper surface of the swing plate 13 and the other end is hinged to the lower surface of the brush 15. The side plate 14 is fixedly connected to the inner surface of the thermal instrument body 1, and the spring 17 is fixedly connected between the side plate 14 and the swing plate 13. The fan blade 8 draws air and pushes the swing plate 13, which, together with the spring 17, drives the brush 15 to move back and forth, achieving the effect of automatic cleaning and reducing maintenance.

[0021] In summary, the improvement of this embodiment lies in: By attaching the heat dissipation end of the microchannel heat pipe 10 to the side surface of the flow-concentrating shroud 9 and the wall of the exhaust pipe 18, combined with the high thermal conductivity of the Ga-In-Sn liquid metal alloy phase change heat-conducting layer 4, a dual heat dissipation effect of "one-time airflow circulation and two-time heat exchange" is formed, which can significantly improve the heat removal efficiency. In addition, the funnel-shaped flow-concentrating shroud 9 can gather the airflow from multiple air inlets 5. After being pressurized by the exhaust component, the airflow can be discharged along the exhaust pipe 18 at a faster speed, further improving the heat removal efficiency and avoiding damage to the core components of the instrument due to high temperature. The cleaning component, through the airflow generated by the fan blade 8 and the spring 17, can repeatedly push the swing plate 13, causing the brush 15 to slide along the slide rail 12, automatically cleaning the dust and impurities on the inner wall of the converging shroud 9, avoiding dust accumulation that hinders heat transfer, ensuring the long-term efficient operation of the heat exchange structure, and reducing the frequency of manual maintenance. The composite sensing module features a zirconia substrate that is resistant to high temperatures and directly senses temperature, while platinum-rhodium alloy electrodes stably convert electrical signals. The nonlinear correction module corrects nonlinear errors in the high-temperature region (traditional errors > ±3%) using an algorithm based on the Arrhenius equation, ensuring data accuracy. The wireless transmission chip enables remote monitoring, adapting to the intelligent needs of high-temperature industrial scenarios.

[0022] Based on the above, other structures also need to be disclosed in detail, such as: Reference Figure 2 Considering the issue of driving airflow circulation, the exhaust assembly includes: duct 7 and fan blade 8. The duct 7 is connected through to the front surface of the air box 6 and is connected to the converging shroud 9. The fan blade 8 is rotatably connected to the inner surface of the duct 7. A motor 11 is fixedly connected to the rear surface of the air box 6. The fan blade 8 is fixedly connected to the output end of the motor 11. The motor 11 drives the fan blade 8 to rotate and generate suction, driving the airflow to flow between the converging shroud 9 and the exhaust pipe 18, achieving the effect of forced airflow circulation.

[0023] Reference Figure 1 , Figure 6 Considering the issue of hot air recirculation affecting intake temperature, slots 3 are provided on both the upper and lower surfaces of the thermal instrument body 1. The slots 3 are detachably connected to a guide shroud 2. The air outlet of the exhaust pipe 18 is located inside the guide shroud 2. The guide shroud 2 can prevent hot air from being discharged to the intake pipe 5. The guide shroud 2 guides the hot air away from the intake pipe 5, thus achieving the effect of avoiding hot air interference with intake.

[0024] Reference Figure 7The thermal instrument body 1 is equipped with an intelligent processing unit, which includes: a nonlinear correction module for correcting measurement errors of temperature signals under high-temperature environments and ensuring data accuracy; a wireless transmission chip for realizing wireless transmission and remote monitoring of temperature data; and a composite sensing module for directly contacting or sensing high-temperature environments and converting temperature signals into measurable electrical signals. The composite sensing module includes: a zirconia substrate for providing a high-temperature resistant physical basis and directly sensing temperature; and a platinum-rhodium alloy electrode for converting temperature changes sensed by the zirconia substrate into measurable electrical signals.

[0025] The nonlinear correction module executes a nonlinear temperature compensation algorithm based on the Arrhenius equation.

[0026] The specific formula for the nonlinear temperature compensation algorithm is as follows: In the formula: This represents the actual temperature value after compensation, i.e., the final accurate temperature output. This represents the raw temperature signal detected by the composite sensing module, the initial measurement value before error correction; This is a constant term with a value range of 0.15±0.03, used to correct nonlinear deviations caused by changes in material properties under high-temperature conditions; This is the temperature coefficient, with a value of 0.008 / ℃, reflecting the rate at which temperature changes affect error correction. The reference temperature is set at 550℃, which is the critical temperature point used in the algorithm to define a significant change in nonlinear error. It is the natural constant (approximately 2.718), used as the base of the exponential function to construct a nonlinear correction model based on temperature changes.

[0027] Working principle: When this high-temperature resistant thermal instrument is working, external cold air enters through multiple air inlet pipes 5 and is gathered by the funnel-shaped converging shroud 9 to form a concentrated airflow; The motor 11 drives the fan blades 8 to rotate and generate suction, which causes the airflow to enter the air box 6 through the air duct 7 and then be discharged through the exhaust pipe 18, forming a forced airflow circulation. During this process, the microchannel heat pipe 10 conducts the heat inside the instrument to the heat dissipation end. The heat dissipation end, through its contact with the side surface of the flow-concentrating shroud 9 and the wall of the exhaust pipe 18, combined with the high thermal conductivity of the Ga-In-Sn liquid metal alloy phase change heat-conducting layer 4, completes two heat exchanges with the airflow inside the flow-concentrating shroud and the airflow inside the exhaust pipe, respectively, and efficiently dissipates heat. At the same time, the airflow generated by the fan blades 8 pushes the swing plate 13, which, together with the spring 17, causes the swing plate to rotate back and forth. The pull rod 16 drives the brush 15 to slide along the slide rail 12 on the inner wall of the concentrator shroud 9, automatically cleaning up the accumulated dust and keeping the heat exchange surface clean. The hot air discharged from the exhaust pipe 18 is guided away from the intake pipe 5 by the deflector 2 to prevent hot air backflow from interfering with the intake. The zirconia substrate of the composite sensing module senses high temperatures, and the platinum-rhodium alloy electrode converts the temperature signal into an electrical signal. This signal is then processed by the nonlinear correction module of the intelligent processing unit using an algorithm based on the Arrhenius equation. After error correction, remote monitoring is achieved by the wireless transmission chip, ensuring stable temperature measurement and efficient heat dissipation in high-temperature environments throughout the process.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. High-temperature resistant thermal instruments based on composite ceramic sensing and microchannel heat dissipation, including: Thermal instrument body (1), characterized in that: The side surface of the thermal instrument body (1) is connected to multiple air inlet pipes (5), and the inner surface of the thermal instrument body (1) is connected to a flow-concentrating shroud (9) through multiple air inlet pipes (5). The rear end of the flow-concentrating shroud (9) is connected to a wind box (6). The wind box (6) is equipped with an exhaust assembly inside. The upper and lower surfaces of the wind box (6) are connected to multiple exhaust pipes (18), and the exhaust pipes (18) extend to the outside of the thermal instrument body (1). A microchannel heat pipe (10) is fixedly connected to the inner surface of the thermal instrument body (1). The heat dissipation end of the microchannel heat pipe (10) is in contact with the side surface of the flow-concentrating shell (9) and the pipe wall of the exhaust pipe (18). When the airflow enters, a primary heat exchange is achieved through the contact between the heat dissipation end of the microchannel heat pipe (10) and the side surface of the flow-concentrating shell (9), and a secondary heat exchange is achieved through the contact between the heat dissipation end of the microchannel heat pipe (10) and the pipe wall of the exhaust pipe (18). A phase change heat conduction layer (4) is provided at the contact point between the heat dissipation end of the microchannel heat pipe (10) and the side surface of the flow-concentrating shell (9) and the pipe wall of the exhaust pipe (18). The thermal instrument body (1) is provided with multiple cleaning components inside, and the multiple cleaning components are slidably connected to the inner wall of the flow-concentrating shroud (9); The thermal instrument body (1) is equipped with an intelligent processing unit.

2. The high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation according to claim 1, characterized in that, The current-concentrating shroud (9) is funnel-shaped, and the phase change heat-conducting layer (4) is made of Ga-In-Sn liquid metal alloy.

3. The high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation according to claim 1, characterized in that, The exhaust assembly includes: a duct (7) and a fan blade (8). The duct (7) is connected through the front surface of the air box (6). The duct (7) is connected to the converging shroud (9). The fan blade (8) is rotatably connected to the inner surface of the duct (7). A motor (11) is fixedly connected to the rear surface of the air box (6). The fan blade (8) is fixedly connected to the output end of the motor (11).

4. The high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation according to claim 3, characterized in that, The cleaning assembly includes two slide rails (12) and a brush (15). The two slide rails (12) are fixedly connected to the inner wall of the flow-concentrating cover (9). The brush (15) is slidably connected between the two slide rails (12) and is in contact with the flow-concentrating cover (9).

5. The high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation according to claim 4, characterized in that, The cleaning assembly also includes: a swing plate (13), a pull rod (16), a side plate (14), and a spring (17). The swing plate (13) is hinged to the inner surface of the thermal instrument body (1). The swing plate (13) is located above the fan blade (8). When the fan blade (8) is drawing air, the airflow can be used to push the swing plate (13) to pull the pull rod (16) and drive the brush (15) to move. One end of the pull rod (16) is hinged to the upper surface of the swing plate (13), and the other end is hinged to the lower surface of the brush (15). The side plate (14) is fixedly connected to the inner surface of the thermal instrument body (1), and the spring (17) is fixedly connected between the side plate (14) and the swing plate (13).

6. The high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation according to claim 1, characterized in that, The upper and lower surfaces of the thermal instrument body (1) are provided with slots (3), and the slots (3) are detachably connected to the flow guide (2). The air outlet of the exhaust pipe (18) is located inside the flow guide (2). The flow guide (2) can prevent hot air from being discharged to the air inlet pipe (5).

7. The high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation according to claim 1, characterized in that, The intelligent processing unit includes: a nonlinear correction module for correcting measurement errors of temperature signals under high-temperature environments and ensuring data accuracy; a wireless transmission chip for realizing wireless transmission and remote monitoring of temperature data; and a composite sensing module for directly contacting or sensing high-temperature environments and converting temperature signals into measurable electrical signals. The composite sensing module includes: a zirconia substrate for providing a high-temperature resistant physical basis and directly sensing temperature; and a platinum-rhodium alloy electrode for converting temperature changes sensed by the zirconia substrate into measurable electrical signals.

8. The high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation according to claim 1, characterized in that, The nonlinear correction module executes a nonlinear temperature compensation algorithm based on the Arrhenius equation.

9. The high-temperature resistant thermal instrument based on composite ceramic sensing and microchannel heat dissipation according to claim 8, characterized in that, The specific formula for the nonlinear temperature compensation algorithm is as follows: In the formula: This represents the actual temperature value after compensation, i.e., the final accurate temperature output. This represents the raw temperature signal detected by the composite sensing module, the initial measurement value before error correction; This is a constant term with a value range of 0.15±0.03, used to correct nonlinear deviations caused by changes in material properties under high-temperature conditions; This is the temperature coefficient, with a value of 0.008 / ℃, reflecting the rate at which temperature changes affect error correction. The reference temperature is set at 550℃, which is the critical temperature point used in the algorithm to define a significant change in nonlinear error. It is the natural constant (approximately 2.718), used as the base of the exponential function to construct a nonlinear correction model based on temperature changes.

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