CN210934900U - Single-mode microwave intracavity image transmission device - Google Patents
Single-mode microwave intracavity image transmission device Download PDFInfo
- Publication number
- CN210934900U CN210934900U CN201921488613.9U CN201921488613U CN210934900U CN 210934900 U CN210934900 U CN 210934900U CN 201921488613 U CN201921488613 U CN 201921488613U CN 210934900 U CN210934900 U CN 210934900U
- Authority
- CN
- China
- Prior art keywords
- microwave
- cavity
- camera
- mode microwave
- bottom plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 9
- 239000013078 crystal Substances 0.000 claims description 11
- 229910001369 Brass Inorganic materials 0.000 claims description 6
- 239000010951 brass Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 6
- 239000002932 luster Substances 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 4
- 230000005669 field effect Effects 0.000 abstract description 4
- 230000000007 visual effect Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006053 organic reaction Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004660 morphological change Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a single mode microwave intracavity image transmission device, including microwave generator, resonant cavity, single mode microwave cavity, microwave inner chamber, miniature camera and display, wherein: single mode microwave cavity and bottom plate fixed connection just single mode microwave cavity top is provided with the upper cover, single mode microwave cavity outer wall is provided with the support column, the upper cover passes through support column and bottom plate fixed connection just the bottom plate middle part is provided with the sensor interface who runs through the bottom plate, the inside coaxial microwave inner chamber that is provided with of single mode microwave cavity just microwave inner chamber and bottom plate fixed connection, the inside center department of microwave inner chamber is provided with the container bottle, the utility model discloses a set up miniature camera, can transmit sample color and luster, form and other changes to the display under the microwave action, make the laboratory staff can the visual observation sample color and luster, form and other specific change and the dynamic image of the real-time change of sample under the microwave field effect can convert the digital format to and store.
Description
Technical Field
The utility model belongs to the technical field of microwave chemical reaction instrument, concretely relates to single mode microwave intracavity image transmission device.
Background
Research in microwave-assisted organic reaction has become a hotspot in the field of organic chemistry, and a great deal of experimental research shows that the reaction speed is tens of times or even thousands of times faster than that of the traditional heating method by means of the microwave technology, and the method has the characteristics of simple and convenient operation, high yield, easy purification of products, safety, sanitation and the like, so that the microwave organic reaction develops rapidly.
Because the microwave can strongly interfere electronic components under the microwave effect, the color and the form change of a sample cannot be observed and recorded when the sample is subjected to the microwave reaction at present, but a device for transmitting an image in a microwave cavity under the single-mode microwave field effect is lacked at present.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a single mode microwave intracavity image transmission device to solve foretell technical problem.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a single mode microwave intracavity image transmission device, includes microwave generator, resonant cavity, single mode microwave cavity, miniature camera and display, wherein:
the single-mode microwave cavity is fixedly connected with the bottom plate, an upper cover is arranged above the single-mode microwave cavity, a supporting column is arranged on the outer wall of the single-mode microwave cavity, the upper cover is fixedly connected with the bottom plate through the supporting column, and a sensor interface penetrating through the bottom plate is arranged in the middle of the bottom plate;
a microwave inner cavity is coaxially arranged in the single-mode microwave cavity and fixedly connected with the bottom plate, and a container bottle is arranged at the center of the inside of the microwave inner cavity;
a camera shooting hole penetrating through the cavity wall is formed in the microwave inner cavity, and a connecting hole corresponding to the camera shooting hole is formed in the cavity wall of the single-mode microwave cavity;
a left baffle and a right baffle are arranged between the single-mode microwave cavity and the microwave inner cavity, the left baffle is arranged on the left side of the camera shooting hole and the connecting hole, the right baffle is arranged on the right side of the camera shooting hole and the connecting hole, and one end of the left baffle and one end of the right baffle are abutted to the welding end of the bottom plate and the upper cover;
a micro camera is arranged between the left baffle and the right baffle, a connecting wire is fixedly arranged at the tail part of the micro camera, one end of the micro camera is fixedly connected with the outer wall of the microwave inner cavity, and the other end of the micro camera is electrically connected with a display through the connecting wire;
the upper cover is provided with a threaded interface, the center of the threaded interface is provided with an opening, and the upper cover is movably connected with the upper cover through the threaded interface;
a second threaded connector is arranged above the upper cover, a round hole is formed in the center of the second threaded connector, and the round hole and the opening are coaxially arranged;
the single-mode microwave cavity is provided with a waveguide port, the waveguide port is connected with a resonant cavity, and the resonant cavity is connected with a microwave generator.
Preferably, the miniature camera comprises a camera barrel, a camera and a connecting wire, the tail of the camera barrel is fixedly provided with the connecting wire, the front end of the camera barrel is provided with the camera and a flash lamp, the outer parts of the camera and the flash lamp are covered with a transparent isolation cover, and the outer part of the camera barrel is sleeved with a connecting ring.
Preferably, one end of the connecting ring is arc-shaped and can be attached to the inner cavity of the microwave, the micro camera is fixedly connected with the microwave cavity through the connecting ring, and the diameter of the transparent isolation cover is smaller than that of the camera hole.
Preferably, the upper cover is movably connected with the fixed cover through a second threaded interface, a pressing plate and a piezoelectric crystal are fixedly arranged inside the fixed cover, and the pressing plate is fixedly connected with the piezoelectric crystal.
Preferably, the single-mode microwave cavity is an annular or cylindrical cavity made of brass.
Preferably, the microwave inner cavity is a cylindrical cavity made of brass, and openings are uniformly formed in the wall of the microwave inner cavity.
Preferably, the container bottle is made of transparent quartz.
The utility model discloses a technological effect and advantage: this single mode microwave intracavity image transmission device, through setting up miniature camera, can transmit sample color and luster and morphological change to the display under the microwave action, make the laboratory staff can the color and luster of visual observation sample under the microwave field effect, form and other concrete changes, and be provided with the accumulator in display inside, can convert the dynamic image of sample real-time change into digital format and store, make things convenient for the laboratory staff later stage to contrast and read the sample reaction, and through piezoelectric crystal, temperature measuring device and miniature camera's cooperation is used and can be made the laboratory staff visual observation sample microwave field to the color and luster of sample under different reaction pressure and different reaction temperature, form and other concrete changes.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a part of the structure of the present invention;
fig. 3 is a schematic view of the internal structure of the single-mode microwave cavity of the present invention;
fig. 4 is a top view of the single mode microwave cavity of the present invention;
fig. 5 is a partial cross-sectional view of the present invention;
FIG. 6 is a schematic view of the connection between the microwave cavity and the micro-camera according to the present invention;
fig. 7 is the schematic view of the specific structure of the miniature camera of the present invention.
In the figure: 1-single-mode microwave cavity, 2-microwave cavity, 3-miniature camera, 4-display, 5-camera hole, 6-bottom plate, 7-upper cover, 8-support column, 9-connecting hole, 10-left baffle, 11-right baffle, 12-connecting line, 13-threaded interface, 14-opening, 15-upper cover, 16-second threaded interface, 17-round hole, 18-waveguide port, 19-resonant cavity, 20-microwave generator, 21-sensor interface, 22-container bottle, 23-camera barrel, 24-camera, 25-transparent isolation cover, 26-flash lamp, 27-connecting ring, 28-fixing cover, 29-pressing plate and 30-piezoelectric crystal.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 7 of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a single mode microwave intracavity image transmission device as shown in 1-7 in the figure, including microwave generator 20, resonant cavity 19, single mode microwave cavity 1, microwave inner chamber 2, miniature camera 3 and display 4, wherein:
the single-mode microwave cavity 1 is fixedly connected with a bottom plate 6, an upper cover 7 is arranged above the single-mode microwave cavity 1, a support pillar 8 is arranged on the outer wall of the single-mode microwave cavity 1, the upper cover 7 is fixedly connected with the bottom plate 6 through the support pillar 8, a sensor interface 21 penetrating through the bottom plate 6 is arranged in the middle of the bottom plate 6, a temperature measuring sensor can be arranged in the middle of the bottom plate 6 through the sensor interface 21, infrared temperature measurement is used during normal pressure reaction, and a contact type temperature sensor (which can be an optical fiber thermometer, a thermocouple or a thermocouple) is adopted during high pressure reaction to monitor the reaction temperature of a container bottle;
a microwave inner cavity 2 is coaxially arranged in the single-mode microwave cavity 1, the microwave inner cavity 2 is fixedly connected with the bottom plate 6, and a container bottle 22 is arranged at the center of the inside of the microwave inner cavity 2;
a camera hole 5 penetrating through the cavity wall is formed in the microwave inner cavity 2, and a connecting hole 9 corresponding to the camera hole 5 is formed in the cavity wall of the single-mode microwave cavity 1;
a left baffle 10 and a right baffle 11 are arranged between the single-mode microwave cavity 1 and the microwave cavity 2, the left baffle 10 is arranged on the left side of the camera hole 5 and the connecting hole 9, the right baffle 11 is arranged on the right side of the camera hole 5 and the connecting hole 9, one end of the left baffle 10 and one end of the right baffle 11 are abutted against the upper cover 7, and the micro camera 3 can be isolated under a microwave field through the left baffle 10 and the right baffle 11, so that the interference of microwaves on the micro camera 3 is prevented;
a micro camera 3 is arranged between the left baffle 10 and the right baffle 11, a connecting wire 12 is fixedly arranged at the tail part of the micro camera 3, one end of the micro camera 3 is fixedly connected with the outer wall of the microwave inner cavity 2, the other end of the micro camera 3 penetrates through the connecting hole 9 through the connecting wire 12 to be electrically connected with a display 4, and the effect of a sample in a microwave field can be visually reflected through the display 4, so that an experimenter can visually observe the color and the form change of the sample;
the upper cover 7 is provided with a threaded interface 13, the center of the threaded interface 13 is provided with an opening 14, the upper cover 7 is movably connected with an upper cover 15 through the threaded interface 13, and a sample can be placed into a container bottle 22 arranged at the center inside the microwave inner cavity 2 through the opening 14 arranged on the threaded interface 13;
a second threaded connector 16 is arranged above the upper cover 15, a round hole 17 is formed in the center of the second threaded connector 16, and the round hole 17 and the opening 14 are coaxially arranged, so that the single-mode microwave cavity 1 can conduct pressure conveniently, and the piezoelectric crystal 30 can measure pressure conveniently;
the microwave leakage protection device is characterized in that a waveguide port 18 is formed in the single-mode microwave cavity 1, the waveguide port 18 is connected with a resonant cavity 19, the resonant cavity 19 is connected with a microwave generator 20, a power plug is arranged on the right side of the microwave generator 20, the microwave generator 20 can generate microwaves when needed, the microwave generator 20 is coupled with the resonant cavity 19, the microwave generator 20 and the resonant cavity 19 form a single distribution mode of the microwaves in the resonant cavity 19 through coupling excitation, the waveguide port 18 is fixedly connected with the resonant cavity 19 in a welding mode, microwave leakage can be guaranteed to meet the national standard, and health of operators is protected.
Specifically, miniature camera 3 is by camera 23, camera 24 and transparent cage 25, camera 23 afterbody is fixed to be provided with connecting wire 12 just camera 23 front end is provided with camera 24 and flash light 26, camera 24 and flash light 26 outside cover are equipped with transparent cage 25, and transparent cage 25 can keep apart the interference of microwave to camera 3, camera 23 outside cover is equipped with go-between 27.
Specifically, go-between 27 one end is circular-arc and can laminate mutually with microwave inner chamber 2, can make miniature camera head and microwave inner chamber 2 fixed connection through gluing or welding each other or with the 2 chamber walls of go-between 27 circular-arc end and microwave inner chamber, miniature camera head 3 passes through go-between 27 and microwave inner chamber 2 fixed connection, transparent cage 25 diameter is less than the hole 5 diameter of making a video recording, can set up transparent cage 25 in the hole 5 department of making a video recording, is convenient for observe the sample reaction condition.
Specifically, the upper cover 15 is movably connected with a fixed cover 28 through a second threaded connector 16, a pressure plate 29 and a piezoelectric crystal 30 are fixedly arranged inside the fixed cover 28, and the pressure plate 29 is fixedly connected with the piezoelectric crystal 30.
Specifically, single mode microwave cavity 1 is the annular or cylindrical cavity of brass material, and the microwave can not pass single mode microwave cavity 1, only can reflect in single mode microwave cavity 1 to penetrate the sample of placing in the inside of container bottle 22 repeatedly, heat and react continuously.
Specifically, microwave cavity 2 is the cylindrical cavity of brass material and 2 chamber walls of microwave cavity evenly are provided with the trompil, can make the microwave heat the container bottle 22 that microwave cavity 2 middle part set up.
Specifically, the container bottle 22 is made of transparent quartz, so that the reaction condition of the sample can be clearly observed.
The working principle is as follows: when the rapid cooling device for the single-mode microwave field effect cavity is used, the upper cover 15 is separated from the upper cover 7 through the threaded interface 13, a sample is placed into the container bottle 22 arranged at the center inside the microwave cavity 2 through the threaded interface 13, then the upper cover 15 and the upper cover 7 are screwed tightly, the power plug arranged at the right side of the microwave generator 20 is connected with a power supply, the microwave generator 20 is coupled with the resonant cavity 19 to form a single distribution mode of microwaves in the resonant cavity 19 through coupling excitation, the microwaves are transmitted into the single-mode microwave cavity 1 through the waveguide port 18, the microwaves are reflected in the single-mode microwave cavity 1 to enter the container bottle 2 arranged at the center inside the microwave cavity 2, the sample placed inside the container bottle 22 is heated or reacted, then the display 4 is started, the display 4 is connected with the miniature camera 3 through the connecting wire 12, the miniature camera 3 is started, and illumination can be provided through the flash lamp 26 arranged at the front end of the miniature camera 3, the camera 24 arranged at the front end of the micro camera 3 can transmit the color and the form change of the sample under the action of the microwave field to the display 4, so that an experimenter can visually observe the color, the form and other specific changes of the sample under the action of the microwave field, and the storage device is arranged in the display 4, which is convenient for the experimenter to compare and read the sample reaction in the later period, the piezoelectric crystal 30 fixed inside the fixed cover 28 can monitor the reaction pressure in real time during the reaction, the temperature measuring device is arranged at the central position of the bottom plate 6, the normal pressure reaction uses infrared temperature measurement, the high pressure reaction adopts a contact type temperature sensor, the reaction temperature can be monitored in real time, and the color, the shape and other specific changes of the sample under different reaction pressures and reaction temperatures by an experimenter can be visually observed through the matching use of the piezoelectric crystal 30, the temperature measuring device and the micro camera 3.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (7)
1. The utility model provides a single mode microwave intracavity image transmission device, includes microwave generator (20), resonant cavity (19), single mode microwave cavity (1), microwave inner chamber (2), miniature camera (3) and display (4), its characterized in that:
the single-mode microwave cavity (1) is fixedly connected with the bottom plate (6), an upper cover (7) is arranged above the single-mode microwave cavity (1), a supporting column (8) is arranged on the outer wall of the single-mode microwave cavity (1), the upper cover (7) is fixedly connected with the bottom plate (6) through the supporting column (8), and a sensor interface (21) penetrating through the bottom plate (6) is arranged in the middle of the bottom plate (6);
a microwave inner cavity (2) is coaxially arranged in the single-mode microwave cavity (1), the microwave inner cavity (2) is fixedly connected with the bottom plate (6), and a container bottle (22) is arranged at the center of the inside of the microwave inner cavity (2);
a camera hole (5) penetrating through the cavity wall is formed in the microwave inner cavity (2), and a connecting hole (9) corresponding to the camera hole (5) is formed in the cavity wall of the single-mode microwave cavity (1);
a left baffle (10) and a right baffle (11) are arranged between the single-mode microwave cavity (1) and the microwave inner cavity (2), the left baffle (10) is arranged on the left side of the camera shooting hole (5) and the connecting hole (9), the right baffle (11) is arranged on the right side of the camera shooting hole (5) and the connecting hole (9), and one end of the left baffle (10) and one end of the right baffle (11) are abutted to the upper cover (7) and the other end of the left baffle (10) and the other end of the right baffle (11) are welded to the bottom plate (6;
a micro camera (3) is arranged between the left baffle (10) and the right baffle (11), a connecting wire (12) is fixedly arranged at the tail part of the micro camera (3), one end of the micro camera (3) is fixedly connected with the outer wall of the microwave inner cavity (2), and the other end of the micro camera is electrically connected with the display (4) through the connecting wire (12);
the upper cover (7) is provided with a threaded interface (13), the center of the threaded interface (13) is provided with an opening (14), and the upper cover (7) is movably connected with an upper cover (15) through the threaded interface (13);
a second threaded connector (16) is arranged above the upper cover (15), a round hole (17) is formed in the center of the second threaded connector (16), and the round hole (17) and the opening (14) are coaxially arranged;
the microwave cavity is characterized in that a waveguide port (18) is formed in the single-mode microwave cavity (1), the waveguide port (18) is connected with a resonant cavity (19), and the resonant cavity (19) is connected with a microwave generator (20).
2. A single-mode microwave intracavity image transfer device as claimed in claim 1 wherein: miniature camera (3) are by camera tube (23), camera (24) and transparent cage (25), camera tube (23) afterbody is fixed to be provided with connecting wire (12) just camera tube (23) front end is provided with camera (24) and flash light (26), camera (24) and flash light (26) outside cover are equipped with transparent cage (25), camera tube (23) outside cover is equipped with go-between (27).
3. A single-mode microwave intracavity image transfer device as claimed in claim 2 wherein: the microwave oven is characterized in that one end of the connecting ring (27) is arc-shaped and can be attached to the microwave inner cavity (2), the micro camera (3) is fixedly connected with the microwave inner cavity (2) through the connecting ring (27), and the diameter of the transparent isolating cover (25) is smaller than that of the camera shooting hole (5).
4. A single-mode microwave intracavity image transfer device as claimed in claim 1 wherein: the upper cover (15) is movably connected with the fixed cover (28) through a second threaded connector (16), a pressing plate (29) and a piezoelectric crystal (30) are fixedly arranged inside the fixed cover (28), and the pressing plate (29) is fixedly connected with the piezoelectric crystal (30).
5. A single-mode microwave intracavity image transfer device as claimed in claim 1 wherein: the single-mode microwave cavity (1) is an annular or cylindrical cavity made of brass.
6. A single-mode microwave intracavity image transfer device as claimed in claim 1 wherein: the microwave inner cavity (2) is a cylindrical cavity made of brass, and holes are uniformly formed in the wall of the microwave inner cavity (2).
7. A single-mode microwave intracavity image transfer device as claimed in claim 1 wherein: the container bottle (22) is made of transparent quartz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921488613.9U CN210934900U (en) | 2019-09-06 | 2019-09-06 | Single-mode microwave intracavity image transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921488613.9U CN210934900U (en) | 2019-09-06 | 2019-09-06 | Single-mode microwave intracavity image transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210934900U true CN210934900U (en) | 2020-07-07 |
Family
ID=71369930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921488613.9U Expired - Fee Related CN210934900U (en) | 2019-09-06 | 2019-09-06 | Single-mode microwave intracavity image transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210934900U (en) |
-
2019
- 2019-09-06 CN CN201921488613.9U patent/CN210934900U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0871023B1 (en) | Infrared thermometer | |
| AU2020103348A4 (en) | Device for continuously measuring temperature and spectrum in industrial furnace, and measurement method using same | |
| CN210934900U (en) | Single-mode microwave intracavity image transmission device | |
| US3647559A (en) | Measuring device for continuously measuring the temperature of metal baths | |
| CN209182328U (en) | A kind of constent temperature heater for soil organic matter detection | |
| CN204027995U (en) | A kind of constant-temperature sample pool device | |
| CN207515555U (en) | A kind of novel industrial furnace monitoring diagnosis device | |
| CN108981956B (en) | Brass tube packaged optical fiber SPR temperature sensor | |
| CN102586098B (en) | Real-time fluorescent PCR (polymerase chain reaction) working system of space-oriented micro-volume unit | |
| CN2852080Y (en) | Minisize temperature measuring probe with black cavity | |
| CN112642363A (en) | Large-size high-temperature-resistant in-situ optical observation reaction kettle cavity | |
| CN203310785U (en) | Video melting point meter | |
| CN201724741U (en) | High-temperature metal liquid temperature probe | |
| CN105547502A (en) | Ceramic sheath of fiber high temperature detector | |
| CN210935090U (en) | Test-tube rack for food detection | |
| CN202869696U (en) | Fiber optic temperature sensor | |
| CN211725736U (en) | Ultralow temperature microwave single-mode reaction synthesizer | |
| CN218594363U (en) | Device for transferring high-temperature material | |
| JPH04242095A (en) | Heating temperature measuring device high microwave electric field | |
| CN106769643A (en) | A kind of new equipment for determining energetic material Isothermal Hot decomposition gas quantity | |
| CN209372231U (en) | Spectroscopic temperature measurement instrument | |
| CN211042498U (en) | Three-channel non-contact infrared temperature measuring device | |
| CN208625679U (en) | Hand-held temp of acupoint detector | |
| CN202119561U (en) | Portable wireless-transmission blast furnace liquid iron temperature measuring instrument | |
| CN219470066U (en) | Nucleic acid amplification detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200707 |