CN112146779A - Rotary temperature measuring device in microwave field - Google Patents
Rotary temperature measuring device in microwave field Download PDFInfo
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- CN112146779A CN112146779A CN202011154016.XA CN202011154016A CN112146779A CN 112146779 A CN112146779 A CN 112146779A CN 202011154016 A CN202011154016 A CN 202011154016A CN 112146779 A CN112146779 A CN 112146779A
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- protection tube
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- 239000013307 optical fiber Substances 0.000 claims abstract description 86
- 239000000463 material Substances 0.000 claims abstract description 69
- 230000003287 optical effect Effects 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 239000004065 semiconductor Substances 0.000 claims abstract description 14
- 230000003068 static effect Effects 0.000 claims description 13
- MARUHZGHZWCEQU-UHFFFAOYSA-N 5-phenyl-2h-tetrazole Chemical compound C1=CC=CC=C1C1=NNN=N1 MARUHZGHZWCEQU-UHFFFAOYSA-N 0.000 claims description 4
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000011068 loading method Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000009529 body temperature measurement Methods 0.000 abstract description 22
- 238000010438 heat treatment Methods 0.000 abstract description 13
- 230000031700 light absorption Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- MWFSXYMZCVAQCC-UHFFFAOYSA-N gadolinium(iii) nitrate Chemical compound [Gd+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O MWFSXYMZCVAQCC-UHFFFAOYSA-N 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000010356 wave oscillation Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a rotary temperature measuring device in a microwave field, which comprises a rotary driving mechanism, a rotary mechanism and a temperature sensing device, wherein the rotary mechanism and the temperature sensing device are arranged in a microwave resonant cavity, the control system is connected with the temperature sensing device through a transmission mechanism, and the rotary mechanism is connected with the output end of the rotary driving mechanism. The optical fiber rotary temperature measuring device applied to the microwave resonant cavity when the heating material is converted from the liquid state to the solid state provided by the invention realizes the accurate monitoring of the temperature of the rotary material in the microwave field; the relationship between the light absorption characteristic and the temperature of the semiconductor material is utilized to realize accurate temperature measurement; the optical fiber slip ring structure is arranged, so that the transmission of optical signals in a rotating state is realized, the knotting phenomenon of a transmission line is effectively avoided, and the continuous and effective operation of the temperature measuring device is ensured; the arrangement of the protection mechanism effectively protects the temperature measuring element and the transmission element and prolongs the service life of the device.
Description
Technical Field
The invention belongs to the field of temperature measuring devices, and particularly relates to a rotary temperature measuring device in a microwave field.
Background
The microwave induces the motion of charged particles by means of high-frequency electromagnetic wave oscillation to generate dielectric loss, so that the material is integrally heated, and the microwave heating device has the characteristics of high heating speed, uniformity, selectivity, high energy utilization rate, no hysteresis and the like. With the application of microwaves in hydrometallurgy, food drying, organic synthesis, sample treatment, material sintering, waste treatment and the like, microwave equipment is also widely developed and popularized.
In the microwave heating process, the temperature has great influence on the heating effect and needs to be accurately controlled. At present, temperature measurement in a microwave field mainly comprises thermocouple temperature measurement, thermal resistance temperature measurement, infrared temperature measurement and the like. In order to avoid electromagnetic interference and material corrosion, a conventional thermocouple and a conventional thermal resistance temperature measuring element are generally provided with an armored metal sleeve outside a sensor; the surface of the thermocouple sleeve generates a skin effect and a vortex effect in a microwave field, electrons form a vortex on the surface of the metal tube, microwaves heat the thermocouple sleeve, and the top end of the sleeve generates point discharge, so that the accuracy of temperature measurement is influenced finally. The infrared temperature measurement mode belongs to non-contact temperature measurement, and the temperature measurement is carried out according to the difference of radiation waves of the surface of an object at different temperatures, so that the infrared temperature measurement mode cannot penetrate through containers and parts, is influenced by aerial fog, emissivity and the like, and has an unsatisfactory temperature measurement effect.
In addition, in order to guarantee the uniformity of heating, the material needs to rotate in the microwave heating process, and temperature measuring devices and the like rotate along with the rotation of the material containing container in the rotating process, so that signal transmission lines are knotted, and the use is influenced. Therefore, there is a need for a temperature measuring device that can solve the above problems and realize accurate temperature measurement in a microwave field and signal transmission in a rotating temperature measurement state.
Disclosure of Invention
The invention aims to solve the problems of material temperature measurement in microwave equipment and provides a rotary temperature measuring device in a microwave field.
The invention is realized by the following technical scheme:
a rotary temperature measuring device in a microwave field comprises a rotary driving mechanism, a rotary mechanism, a temperature sensing device and a control system, wherein the rotary driving mechanism and the rotary mechanism are connected with each other, the control system is connected with the temperature sensing device through a transmission mechanism, the transmission mechanism comprises an optical fiber connected with the temperature sensing device and an optical cable connected with the control system, and the optical fiber is connected with the optical cable through an optical fiber slip ring.
In the above technical solution, the rotating mechanism includes a material container for loading a material to be heated.
In the above technical scheme, the rotating mechanism further comprises a rotating platform, and the material container is arranged on the rotating platform.
In the technical scheme, the optical fiber slip ring consists of an optical fiber sliding movable ring connected with the optical fiber and an optical fiber sliding static ring connected with the optical cable, the optical fiber sliding movable ring is arranged in the microwave resonant cavity, and the optical fiber sliding static ring is arranged at the top outside the microwave resonant cavity through a fixed flange.
In the above technical scheme, the control system includes an optical fiber thermometer host and a computer that are electrically connected, and the optical fiber thermometer host is connected with the optical cable.
In the above technical solution, the protection device further comprises a protection mechanism for the temperature sensing device and the optical fiber.
In the technical scheme, the protection mechanism comprises an inner protection tube and an outer optical fiber protection tube, wherein the inner protection tube is connected with a protection tube fixing support arranged at the open end of the material container through a protection tube clamp; the inner protection tube is coated on the temperature sensing device and the outer part of the optical fiber positioned below the protection tube fixing support, and the outer part of the optical fiber above the protection tube fixing support is coated with the outer optical fiber protection tube.
In the technical scheme, the outer edge of the rotating platform protrudes upwards to form a protective edge; a detachable fixing piece or an auxiliary piece for increasing friction force is arranged between the material container and the rotating platform.
In the above technical scheme, the temperature sensing device is formed by integrally packaging a ceramic tube, a dielectric mirror and a semiconductor material which are sequentially arranged from outside to inside.
In the above technical solution, the semiconductor material is gallium arsenide or cadmium telluride.
The invention has the beneficial effects that:
the invention provides an optical fiber rotary temperature measuring device applied to the process of converting a liquid state into a solid state of a heating material of a microwave resonant cavity, which realizes the accurate monitoring of the temperature of the rotary material in a microwave field; the relationship between the light absorption characteristic and the temperature of the semiconductor material is utilized to realize accurate temperature measurement; the optical fiber slip ring structure is arranged, so that the transmission of optical signals in a rotating state is realized, the knotting phenomenon of a transmission line is effectively avoided, and the continuous and effective operation of the temperature measuring device is ensured; the arrangement of the protection mechanism effectively protects the temperature measuring element and the transmission element and prolongs the service life of the device.
Drawings
FIG. 1 is a schematic structural diagram of a rotary temperature measuring device in a microwave field according to the present invention.
Wherein:
1 microwave resonant cavity 2 rotating platform
3 Material Container 4 Material to be heated
5 inner protection tube of temperature sensing device 6
7 optical fiber 8 outer optical fiber protection tube
9 optical fiber sliding dynamic ring 10 optical fiber sliding static ring
11 fixed flange 12 optical cable
13 optical fiber thermometer host 14 computer
15 protection tube anchor clamps 16 protection tube fixed bolster
17 rotate the drive mechanism 18 spindle.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the following description is provided with reference to the drawings and specific embodiments to further describe the technical solutions of the rotating temperature measuring device in the microwave field.
Example 1
As shown in fig. 1, a rotary temperature measuring device in a microwave field comprises a rotary driving mechanism 17, a rotary mechanism arranged in a microwave resonant cavity 1, a temperature sensing device 5, and a control system connected with the temperature sensing device 5 through a transmission mechanism;
the rotating mechanism comprises a rotating platform 2 connected with a rotating shaft 18 of a rotating driving mechanism 17 and a material container 3 which is arranged on the rotating platform 2 and is used for loading materials 4 to be heated;
the temperature sensing device 5 is immersed in the material 4 to be heated.
The transmission mechanism comprises an optical fiber 7 connected with the temperature sensing device 5 and an optical cable 12 connected with the optical fiber 7 through an optical fiber slip ring. The optical fiber slip ring consists of an optical fiber sliding movable ring 9 connected with an optical fiber 7 and an optical fiber sliding static ring 10 connected with an optical cable 12; the optical fiber sliding movable ring 9 is arranged in the microwave resonant cavity 1, and the optical fiber sliding static ring 10 is arranged at the top outside the microwave resonant cavity 1 through a fixed flange 11.
The control system comprises an optical fiber thermometer host 13 and a computer 14 which are electrically connected, wherein the optical fiber thermometer host 13 is connected with the optical cable 12; when the optical fiber thermometer host 13 is used for measurement, light emitted by an internal light source is transmitted to the temperature sensing device 5 through the transmission mechanism, the light absorbed by the temperature sensing device 5 is reflected back to the optical fiber thermometer host 13, and the optical fiber thermometer host 13 converts an optical signal into an electric signal and transmits the electric signal to the computer 14; the computer 14 receives and processes the electrical signals and displays the temperature data in real time.
The temperature sensing device 5 is formed by integrally encapsulating a ceramic tube, a dielectric mirror and a semiconductor material which are sequentially arranged from outside to inside, wherein the semiconductor material is gallium arsenide or cadmium telluride. The dielectric mirror is similar to a light reflector.
The rotary driving mechanism comprises a driving motor, a driven wheel connected with a driving wheel on an output shaft of the driving motor through a belt, and a rotating shaft 18 fixedly connected with the driven wheel. The rotation driving mechanism is not limited to the above-described structure, and any device that can realize rotation driving can be applied as the rotation driving mechanism.
Example 2
Based on the embodiment 1, in order to prolong the service life of the temperature sensing device 5 and the optical fiber 7 and avoid the corrosion of the material 4 to be processed on the temperature sensing device 5 and the possible stress damage to the optical fiber 7, a protection mechanism is additionally arranged.
The protection mechanism comprises an inner protection tube 6 and an outer optical fiber protection tube 8, wherein the inner protection tube 6 is connected with a protection tube fixing support 16 arranged at the open end of the material container 3 through a protection tube clamp 15; the inner protection tube 6 covers the temperature sensing device 5 and the optical fiber 7 located below the protection tube fixing support 16, and the optical fiber 7 above the protection tube fixing support 16 is covered with the outer optical fiber protection tube 8.
The inner protection tube 6 is made of quartz, the temperature of the material to be processed 4 can be quickly transmitted to the temperature sensing element 5 through the quartz inner protection tube 6, corrosion of the material to be processed 4 to the temperature sensing element 5 made of semiconductor materials is avoided, meanwhile, in order to guarantee quick temperature transmission, the thickness of the protection tube is appropriate, and the inner diameter of the protection tube is matched with the outer diameter of the temperature sensing element 5.
The outer optical fiber protection tube 8 is made of polytetrafluoroethylene.
Example 3
Based on embodiment 1, in order to ensure the safety of the material container 3 during the rotation process, the outer edge of the rotating platform 2 is protruded upwards to form a protective edge.
Meanwhile, in order to ensure that the material container 3 and the rotating platform 2 rotate synchronously and do not move radially, a detachable fixing piece or an auxiliary piece for increasing friction force is arranged between the material container 3 and the rotating platform 2.
The detachable fixing frame can be composed of a material container fixing part and a rotating platform fixing part, and relative fixation between the material container 3 and the rotating platform 2 is achieved through connection of the two parts.
The auxiliary element for increasing the friction force can directly roughen the bottom of the material container 3, or add a roughening coating, or arrange an anti-slip rubber layer at the bottom of the material container 3 and/or the top of the rotating platform 2.
The working principle of the invention is as follows:
the invention adopts semiconductor material (gallium arsenide or cadmium telluride) as temperature sensing device, and utilizes the relation between the light absorption characteristic of semiconductor material and temperature to realize temperature measurement.
The specific temperature measurement principle is as follows: the temperature sensing device 5 is directly or indirectly contacted with the material and is connected with the optical fiber temperature measuring instrument host 13 through the optical fiber 12, light emitted by a light source of the optical fiber temperature measuring instrument host 13 is transmitted to the temperature measuring element 5 through the optical fiber 12, the temperature sensing device 5 made of semiconductor materials has different light absorption characteristics at different temperatures, the medium mirror reflects the absorbed light to the optical fiber temperature measuring instrument host 13, and temperature measurement is carried out by utilizing the difference between the wavelength of the reflected light and the wavelength of incident light; after the system is established, a temperature calibration system is adopted to obtain a calibration curve between the optical signal and the temperature. In the measuring process, the temperature sensing device, the transmission device and the optical signal in the utilized device are not influenced by electromagnetic waves, and the device is suitable for accurately measuring the temperature in a microwave field.
And (3) the transmission process of signals in a rotating temperature measurement state: the rotary driving mechanism 17 drives the rotary platform 2 to rotate through the rotating shaft 18, the material container 3 arranged on the rotary platform 2 rotates synchronously, the inner protection tube 6 is fixed with the material container 3 through the protection tube clamp 15 and the protection tube fixing support 16, and then the inner protection tube 6 rotates synchronously, and because the assembly structure of the inner protection tube 6, the temperature sensing element 5 and the optical fiber 7 is manufactured in an integrated manner similar to a thermocouple, the temperature sensing element 5 and the optical fiber 7 rotate synchronously, the optical fiber 7 drives the optical fiber sliding movable ring 9 to rotate, the optical fiber sliding stationary ring 10 keeps static, optical signals are transmitted to the outside of the resonant cavity 1 through the optical fiber sliding ring, and then the transmission of optical signals in a rotating state is realized, and the rotary temperature measurement in a microwave field is realized.
The use method of the invention comprises the following steps:
the rotary platform 2 is arranged in the microwave resonant cavity 1, the material container 3 is placed on the rotary platform 2, a certain amount of material 4 to be processed is added into the material container 3, the rotary driving mechanism 17 is started to drive the rotary platform 2 to rotate, and then the material container 3 on the rotary platform is driven to rotate, so that the rotation of the material 4 to be processed in the microwave heating process is realized. The temperature sensing element 5 made of semiconductor materials is packaged into the inner protection tube 6 made of quartz materials, and the temperature of the material 4 to be processed can be quickly conducted to the temperature sensing element 5 through the inner protection tube 6. The optical fiber 7 is connected with the optical fiber sliding movable ring 9, the optical fiber sliding static ring 10 is fixed with the microwave resonant cavity 1 through a fixed flange, and the inner protection tube 6 is fixed with the material container 3 through a protection tube clamp 15 and a protection tube fixing support 16. During rotation, the material container 3 rotates synchronously with the inner protection tube 6 through the protection tube clamp 15 and the protection tube fixing support 16, the inner protection tube 6 drives the optical fiber 7 to rotate together with the optical fiber sliding movable ring 9, the optical fiber sliding static ring 10 keeps static, optical signals are transmitted to the outside of the microwave resonant cavity 1 through the optical fiber sliding movable ring 9 and the optical fiber sliding static ring 10, and transmission of the optical signals from the inside and the outside of the resonant cavity in a rotating state is achieved. During measurement, light emitted by a light source inside the optical fiber thermometer host 13 is transmitted to the temperature sensing element 5 through the optical cable 12, the optical fiber sliding static ring 10, the optical fiber sliding dynamic ring 9 and the like, the absorbed light is reflected back to the spectrum system, then is converted into an electric signal, is received and processed by the computer 14, and temperature data is displayed in real time.
Application examples of the invention:
example one:
0.5L of gadolinium nitrate solution containing about 50 g of gadolinium is added into a material container, a temperature measuring element is inserted into the solution, and a quartz tube clamp is used for fixing. The temperature measuring element and the material container rotate together, the temperature measuring mechanism operates normally, the temperature displays 24.2 ℃, and the temperature is consistent with the measuring result of the thermocouple. And starting microwave heating, evaporating and concentrating the solution, solidifying, synchronously rotating the temperature measuring element and the material, and operating the temperature measuring mechanism normally.
Example two:
about 400mL of water was added to the material container, the temperature measuring element was inserted into the solution, and the tube holder was secured. The temperature measuring element and the material container rotate together, the temperature measuring mechanism operates normally, the temperature displays 24.1 ℃, and the temperature is consistent with the measuring result of the thermocouple. Starting microwave heating, starting heating the aqueous solution, stopping heating, opening a resonant cavity door, inserting a thermocouple into the water, comparing the system measurement result with the thermocouple measurement result, and measuring the deviation of a plurality of times not more than +/-1 ℃.
Through the above example, it is further illustrated that the present invention can be applied to the optical fiber rotation temperature measurement when the microwave resonant cavity heats a material from a liquid state to a solid state, so as to realize the accurate monitoring of the temperature of the rotating material in the microwave field; the relationship between the light absorption characteristic and the temperature of the semiconductor material is utilized to realize accurate temperature measurement; the optical fiber slip ring structure is arranged, so that the transmission of optical signals in a rotating state is realized, the knotting phenomenon of a transmission line is effectively avoided, and the continuous and effective operation of the temperature measuring device is ensured; the arrangement of the protection mechanism effectively protects the temperature measuring element and the transmission element and prolongs the service life of the device.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.
Claims (10)
1. The utility model provides a rotatory temperature measuring device in microwave field, includes interconnect's rotary drive mechanism (17) and rotary mechanism, temperature sensing device (5) and passes through the control system that transmission device is connected with temperature sensing device (5), its characterized in that: the transmission mechanism comprises an optical fiber (7) connected with the temperature sensing device (5) and an optical cable (12) connected with the control system, and the optical fiber (7) is connected with the optical cable (12) through an optical fiber slip ring.
2. The rotary temperature measuring device in microwave field according to claim 1, characterized in that: the rotating mechanism comprises a material container (3) for loading material (4) to be heated.
3. The rotary temperature measuring device in microwave field according to claim 2, characterized in that: the rotating mechanism further comprises a rotating platform (2), and the material container (3) is arranged on the rotating platform (2).
4. The rotary temperature measuring device in microwave field according to claim 1, characterized in that: the optical fiber slip ring is composed of an optical fiber sliding movable ring (9) connected with an optical fiber (7) and an optical fiber sliding static ring (10) connected with an optical cable (12), the optical fiber sliding movable ring (9) is arranged in the microwave resonant cavity (1), and the optical fiber sliding static ring (10) is arranged at the outer top of the microwave resonant cavity (1) through a fixing flange (11).
5. The rotary temperature measuring device in microwave field according to claim 1, characterized in that: the control system comprises an optical fiber thermometer host (13) and a computer (14) which are electrically connected, wherein the optical fiber thermometer host (13) is connected with the optical cable (12).
6. The rotary temperature measuring device in microwave field according to claim 1, characterized in that: and the protection mechanism is used for protecting the temperature sensing device (5) and the optical fiber (7).
7. The apparatus according to claim 6, characterized in that: the protection mechanism comprises an inner protection tube (6) and an outer optical fiber protection tube (8), wherein the inner protection tube (6) is connected with a protection tube fixing support (16) arranged at the open end of the material container (3) through a protection tube clamp (15); the inner protection tube (6) is covered on the temperature sensing device (5) and the outer part of the optical fiber (7) positioned below the protection tube fixing support (16), and the outer part of the optical fiber (7) above the protection tube fixing support (16) is covered with the outer optical fiber protection tube (8).
8. The rotary temperature measuring device in microwave field according to claim 1, characterized in that: the outer edge of the rotary platform (2) protrudes upwards to form a protective edge; a detachable fixing piece or an auxiliary piece for increasing friction force is arranged between the material container (3) and the rotating platform (2).
9. The rotary temperature measuring device in microwave field according to claim 1, characterized in that: the temperature sensing device (5) is formed by integrally packaging a ceramic tube, a dielectric mirror and a semiconductor material which are sequentially arranged from outside to inside.
10. The apparatus of claim 9 for measuring temperature by rotation in microwave field, wherein: the semiconductor material is gallium arsenide or cadmium telluride.
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| CN202011154016.XA CN112146779A (en) | 2020-10-26 | 2020-10-26 | Rotary temperature measuring device in microwave field |
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| CN202011154016.XA CN112146779A (en) | 2020-10-26 | 2020-10-26 | Rotary temperature measuring device in microwave field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136481A (en) * | 2021-10-27 | 2022-03-04 | 天津大学 | In-situ measurement method and device for temperature at microwave-induced microscopic hot spot and application |
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