CN112230129A - Novel nonlinear analog circuit fault diagnosis device - Google Patents
Novel nonlinear analog circuit fault diagnosis device Download PDFInfo
- Publication number
- CN112230129A CN112230129A CN202011125583.2A CN202011125583A CN112230129A CN 112230129 A CN112230129 A CN 112230129A CN 202011125583 A CN202011125583 A CN 202011125583A CN 112230129 A CN112230129 A CN 112230129A
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- fixedly connected
- mounting groove
- analog circuit
- fault diagnosis
- circuit fault
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 30
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims description 13
- 238000004140 cleaning Methods 0.000 claims description 8
- 239000000428 dust Substances 0.000 abstract description 23
- 230000017525 heat dissipation Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004804 winding Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/316—Testing of analog circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20181—Filters; Louvers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention provides a novel nonlinear analog circuit fault diagnosis device. The novel nonlinear analog circuit fault diagnosis device comprises: a housing and a sealing plate; the oscilloscope main body is fixed between two sides of the inner wall of the shell, and the front surface of the shell is movably connected with a cover plate; the through hole is formed in the back face of the shell, and a cooling fan is arranged inside the through hole. The novel nonlinear analog circuit fault diagnosis device provided by the invention can dissipate heat of the oscilloscope main body by starting the heat dissipation fan, can prevent external dust from entering through the arrangement of the dust cover, thereby prolonging the service life of the oscilloscope main body, preventing the heat dissipation fan from attaching dust to influence the heat dissipation effect, being capable of being detached, cleaned or replaced when the dust cover is blocked, and being simple in operation steps, only needing to pull the second connecting rod, and increasing the detachment efficiency.
Description
Technical Field
The invention relates to the field of electronic circuits, in particular to a novel nonlinear analog circuit fault diagnosis device.
Background
Analog circuitry refers to circuitry used to transmit, transform, process, amplify, measure, and display analog signals. Analog signals refer to continuously varying electrical signals. The analog circuit is the basis of electronic circuit, it mainly includes amplifying circuit, signal operation and processing circuit, oscillating circuit, modulation and demodulation circuit and power, etc., and the nonlinearity in the communication term, namely the nonlinear modulation in the analog modulation system, the nonlinear modulation is also called angle modulation, its frequency spectrum of modulated signal and frequency spectrum structure of the modulated signal have very big differences, except that the frequency spectrum shifts, have increased many new frequency components.
When the existing nonlinear analog circuit is maintained, an oscilloscope is often used for monitoring a module part with a fault so as to judge and detect which part in the analog circuit has the fault, but the existing oscilloscope has certain defects when in use, for example, certain heat can be generated in the process of long-time use, internal electronic elements are easily damaged when the heat is too high, the common heat dissipation mode is to carry out heat exchange with room temperature for cooling, and the heat dissipation effect is not good.
Therefore, it is necessary to provide a novel nonlinear analog circuit fault diagnosis device to solve the above technical problems.
Disclosure of Invention
The invention provides a novel nonlinear analog circuit fault diagnosis device, which solves the problems that certain heat can be generated in the process of long-time use, internal electronic elements are easily damaged when the heat is too high, and the heat dissipation effect is poor due to the fact that the heat exchange cooling is carried out with the room temperature in a common heat dissipation mode.
In order to solve the above technical problem, the novel nonlinear analog circuit fault diagnosis device provided by the present invention comprises: a housing and a sealing plate;
the oscilloscope comprises an oscilloscope main body, wherein two sides of the oscilloscope main body are fixed between two sides of the inner wall of the shell, the front side of the shell is movably connected with a cover plate, the back side of the cover plate and the front side of the shell are both provided with magnets, and the cover plate can be attracted on the shell through the magnets;
the through hole is formed in the back face of the shell, a cooling fan is arranged inside the through hole, and the cooling fan is connected with an external power supply through a control switch;
the dustproof cover is arranged inside the sealing plate, and two sides of the dustproof cover are fixedly connected with clamping grooves;
two mounting grooves, two the mounting groove is fixed in respectively the back of shell inner wall, sliding connection has the sliding block between the top of mounting groove inner wall and the bottom, the right side fixedly connected with fixture block of sliding block, the right side of fixture block is run through the mounting groove and is extended to the outside of mounting groove, the left side fixedly connected with head rod of sliding block, the top of head rod is seted up flutedly, head rod one end is run through the mounting groove and is extended to the outside of mounting groove, the left side of sliding block with be provided with first spring between the left side of mounting groove inner wall.
Preferably, the top sliding connection of mounting groove has the second connecting rod, the bottom of second connecting rod runs through the mounting groove and extends to the inside of mounting groove, the bottom fixedly connected with lug of second connecting rod, lug and recess looks adaptation, the left side sliding connection of lug in the left side of mounting groove inner wall, the top of lug with be provided with the second spring between the top of mounting groove inner wall.
Preferably, the fixed frame of top fixedly connected with of shell, the first motor of right side fixedly connected with of fixed frame inner wall, first motor pass through control switch and are connected with external power, and first motor is servo motor, the output shaft fixedly connected with dwang of first motor, the outer fixed surface of dwang is connected with the reel, the surface winding of reel has the metal cord, the other end of metal cord is fixed in the front of apron.
Preferably, the back fixedly connected with two fixed blocks of apron, two it is connected with the threaded rod to rotate between the relative one side of fixed block.
Preferably, the outer surface of the threaded rod is in threaded connection with a moving plate, the front surface of the moving plate is connected to the back surface of the cover plate in a sliding mode, and the back surface of the moving plate is fixedly connected with a cleaning brush.
Preferably, a worm wheel is fixedly connected to the outer surface of the threaded rod and positioned at the top of the moving plate.
Preferably, the back of the cover plate is located on the right side of the threaded rod and is fixedly connected with a second motor, the second motor is connected with an external power supply through a control switch and is a servo motor, an output shaft of the second motor is fixedly connected with a worm, and the outer surface of the worm is meshed with the outer surface of the worm wheel.
Compared with the related art, the novel nonlinear analog circuit fault diagnosis device provided by the invention has the following beneficial effects:
(1) the invention provides a novel nonlinear analog circuit fault diagnosis device, which can radiate the heat of an oscilloscope main body by starting a radiating fan, can prevent external dust from entering by arranging a dust cover, thereby prolonging the service life of the oscilloscope main body, preventing the dust attached to the heat radiation fan from influencing the heat radiation effect, the second connecting rod is pulled upwards manually, so that the second connecting rod drives the lug to move upwards, then the first spring is reset by the elastic force of the first spring to drive the sliding block to move leftwards so as to drive the clamping block to move leftwards, then the dust cover is released after being withdrawn from the clamping groove, so that the dust cover can be detached and can be detached, cleaned or replaced when the dust cover is blocked, the operation steps are simple, and only the second connecting rod needs to be pulled, so that the disassembly efficiency is improved;
(2) the invention provides a novel nonlinear analog circuit fault diagnosis device, which is characterized in that a first motor is started, the first motor rotates to drive a rotating rod to rotate, so that a winding wheel rotates, the winding wheel rotates to take up a metal rope, a cover plate is turned upwards to be opened, when the first motor rotates reversely, the winding wheel indirectly rotates reversely, so that the metal rope is paid off, the cover plate is turned downwards to be closed due to self gravity, the cover plate is convenient to open and close, and the novel nonlinear analog circuit fault diagnosis device is more portable in use.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of a novel nonlinear analog circuit fault diagnosis device provided by the present invention;
FIG. 2 is a side view of the housing shown in FIG. 1;
FIG. 3 is a rear view of the housing shown in FIG. 1;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is a top view of the housing shown in FIG. 1;
fig. 6 is a schematic structural diagram of a second embodiment of the novel nonlinear analog circuit fault diagnosis device provided by the present invention.
Reference numbers in the figures: 1. the oscilloscope comprises a shell, 2, a sealing plate, 3, an oscilloscope main body, 4, a cover plate, 5, a through hole, 6, a cooling fan, 7, a dust cover, 8, a clamping groove, 9, a mounting groove, 10, a sliding block, 11, a clamping block, 12, a first connecting rod, 13, a groove, 14, a first spring, 15, a second connecting rod, 16, a bump, 17, a second spring, 18, a fixing frame, 19, a first motor, 20, a rotating rod, 21, a reel, 22, a metal rope, 23, a fixing block, 24, a threaded rod, 25, a moving plate, 26, a cleaning brush, 27, a worm wheel, 28, a second motor, 29 and a worm.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
First embodiment
Please refer to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 in combination, wherein fig. 1 and fig. 1 are schematic structural diagrams of a first embodiment of a novel nonlinear analog circuit fault diagnosis apparatus provided by the present invention; FIG. 2 is a side view of the housing shown in FIG. 1; FIG. 3 is a rear view of the housing shown in FIG. 1; FIG. 4 is an enlarged view of portion A of FIG. 3; fig. 5 is a top view of the housing shown in fig. 1. The novel nonlinear analog circuit fault diagnosis device comprises: a housing 1 and a sealing plate 2;
the oscilloscope comprises an oscilloscope main body 3, wherein two sides of the oscilloscope main body 3 are fixed between two sides of the inner wall of the shell 1, and the front surface of the shell 1 is movably connected with a cover plate 4;
the through hole 5 is formed in the back face of the shell 1, and a heat dissipation fan 6 is arranged inside the through hole 5;
the dustproof cover 7 is arranged inside the sealing plate 2, and clamping grooves 8 are fixedly connected to two sides of the dustproof cover 7;
two mounting grooves 9, two mounting groove 9 is fixed in respectively the back of 1 inner wall of shell, sliding connection has sliding block 10 between the top of 9 inner walls of mounting groove and the bottom, sliding block 10's right side fixedly connected with fixture block 11, the right side of fixture block 11 is run through mounting groove 9 and extend to the outside of mounting groove 9, sliding block 10's left side fixedly connected with head rod 12, recess 13 has been seted up at head rod 12's top, head rod 12 one end is run through mounting groove 9 and extend to the outside of mounting groove 9, sliding block 10 the left side with be provided with first spring 14 between the left side of mounting groove 9 inner wall.
The clamping block 11 is clamped into the clamping groove 8, the dust cover 7 is fixed, the clamping block 11 is convenient to reset through the arrangement of the first spring 14, and therefore the dust cover 7 is convenient to detach.
The top sliding connection of mounting groove 9 has second connecting rod 15, the bottom of second connecting rod 15 runs through mounting groove 9 and extend to the inside of mounting groove 9, the bottom fixedly connected with lug 16 of second connecting rod 15, the left side sliding connection of lug 16 in the left side of mounting groove 9 inner wall, the top of lug 16 with be provided with second spring 17 between the top of mounting groove 9 inner wall.
The projection 16 snaps into the recess 13, thereby securing the first connecting rod 12.
The fixed frame 18 of top fixedly connected with of shell 1, the first motor 19 of right side fixedly connected with of fixed frame 18 inner wall, the output shaft fixedly connected with dwang 20 of first motor 19, the outer fixed surface of dwang 20 is connected with reel 21, the surface winding of reel 21 has metal rope 22, metal rope 22's the other end is fixed in the front of apron 4.
The working principle of the novel nonlinear analog circuit fault diagnosis device provided by the invention is as follows:
the oscilloscope main body 3 can be cooled by starting the cooling fan 6, external dust can be prevented from entering through the arrangement of the dust cover 7, the second connecting rod 15 is pulled upwards manually, so that the second connecting rod 15 drives the lug 16 to move upwards, and then the lug moves out of the groove 13, the first spring 14 drives the sliding block 10 to move leftwards due to the resetting of the elastic force of the first spring 14, so that the clamping block 11 is driven to move leftwards, and then the dust cover 7 is loosened after the clamping groove 8 is withdrawn, so that the dust cover 7 can be detached;
through the start of first motor 19, first motor 19 rotation drive dwang 20 is rotatory to make reel 21 rotatory, reel 21 rotation makes metal rope 22 receive the line, and then makes apron 4 upwards overturn and open, when first motor 19 reverse rotation, indirectly makes reel 21 reverse rotation, thereby makes metal rope 22 unwrapping wire, apron 4 is because self gravity overturn downwards and closes.
Compared with the related art, the novel nonlinear analog circuit fault diagnosis device provided by the invention has the following beneficial effects:
through the starting of the cooling fan 6, the oscilloscope main body 3 can be cooled, and the dust cover 7 can be arranged to prevent external dust from entering, so that the service life of the oscilloscope main body 3 is prolonged, and the influence of dust attached to the cooling fan 6 on the cooling effect is prevented, the second connecting rod 15 is pulled upwards manually to drive the lug 16 to move upwards, and further to withdraw from the groove 13, the first spring 14 drives the sliding block 10 to move leftwards due to the self elastic force reset, so that the clamping block 11 is driven to move leftwards, and further after withdrawing from the clamping groove 8, the dust cover 7 is loosened, so that the dust cover 7 can be detached, and when the dust cover 7 is blocked, the detachment and cleaning or replacement can be carried out, the operation steps are simple, only the second connecting rod 15 needs to be pulled, and the detachment efficiency is improved;
through the start-up of first motor 19, first motor 19 is rotatory to drive dwang 20 rotatory to make reel 21 rotatory, reel 21 is rotatory to make metal rope 22 receive the line, and then make apron 4 upwards overturn and open, when first motor 19 reverse rotation, indirectly make reel 21 reverse rotation, thereby make metal rope 22 unwrapping wire, apron 4 is closed because self gravity overturns downwards, has made things convenient for opening and closing of apron 4, uses more portablely.
Second embodiment
Referring to fig. 6, a second embodiment of the present application provides another novel nonlinear analog circuit fault diagnosis apparatus based on the novel nonlinear analog circuit fault diagnosis apparatus provided in the first embodiment of the present application. The second embodiment is only the preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the novel nonlinear analog circuit fault diagnosis device provided by the second embodiment of the present application is different in that two fixing blocks 23 are fixedly connected to the back surface of the cover plate 4, and a threaded rod 24 is rotatably connected between opposite sides of the two fixing blocks 23.
The outer surface of the threaded rod 24 is in threaded connection with a moving plate 25, the front surface of the moving plate 25 is in sliding connection with the back surface of the cover plate 4, and the back surface of the moving plate 25 is fixedly connected with a cleaning brush 26.
A worm wheel 27 is fixedly connected to the outer surface of the threaded rod 24 and positioned on the top of the moving plate 25.
A second motor 28 is fixedly connected to the back of the cover plate 4 and positioned on the right side of the threaded rod 24, and a worm 29 is fixedly connected to an output shaft of the second motor 28.
Compared with the related art, the novel nonlinear analog circuit fault diagnosis device provided by the invention has the following beneficial effects:
after the cover plate 4 is covered, the second motor 28 is started, the second motor 28 rotates to drive the worm 29 to rotate, so that the worm wheel 27 rotates to drive the threaded rod 24 to rotate, the moving plate 25 moves upwards to drive the cleaning brush 26 to move upwards, and when the second motor 28 rotates reversely, the moving plate 25 moves downwards to drive the cleaning brush 26 to move downwards, so that the cleaning brush 26 moves upwards and downwards to clean the screen of the oscilloscope main body 3.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A novel nonlinear analog circuit fault diagnosis device is characterized by comprising: a housing and a sealing plate;
the oscilloscope main body is fixed between two sides of the inner wall of the shell, and the front surface of the shell is movably connected with a cover plate;
the through hole is formed in the back face of the shell, and a cooling fan is arranged inside the through hole;
the dustproof cover is arranged inside the sealing plate, and two sides of the dustproof cover are fixedly connected with clamping grooves;
two mounting grooves, two the mounting groove is fixed in respectively the back of shell inner wall, sliding connection has the sliding block between the top of mounting groove inner wall and the bottom, the right side fixedly connected with fixture block of sliding block, the right side of fixture block is run through the mounting groove and is extended to the outside of mounting groove, the left side fixedly connected with head rod of sliding block, the top of head rod is seted up flutedly, head rod one end is run through the mounting groove and is extended to the outside of mounting groove, the left side of sliding block with be provided with first spring between the left side of mounting groove inner wall.
2. The novel nonlinear analog circuit fault diagnosis device according to claim 1, wherein a second connecting rod is slidably connected to the top of the mounting groove, the bottom end of the second connecting rod penetrates through the mounting groove and extends to the inside of the mounting groove, a bump is fixedly connected to the bottom end of the second connecting rod, the left side of the bump is slidably connected to the left side of the inner wall of the mounting groove, and a second spring is arranged between the top of the bump and the top of the inner wall of the mounting groove.
3. The novel nonlinear analog circuit fault diagnosis device according to claim 1, wherein a fixed frame is fixedly connected to the top of the housing, a first motor is fixedly connected to the right side of the inner wall of the fixed frame, a rotating rod is fixedly connected to an output shaft of the first motor, a reel is fixedly connected to the outer surface of the rotating rod, a metal rope is wound on the outer surface of the reel, and the other end of the metal rope is fixed to the front surface of the cover plate.
4. The novel nonlinear analog circuit fault diagnosis device as claimed in claim 1, wherein two fixing blocks are fixedly connected to the back surface of the cover plate, and a threaded rod is rotatably connected between opposite sides of the two fixing blocks.
5. The novel nonlinear analog circuit fault diagnosis device according to claim 4, wherein a moving plate is connected to the outer surface of the threaded rod in a threaded manner, the front surface of the moving plate is slidably connected to the back surface of the cover plate, and a cleaning brush is fixedly connected to the back surface of the moving plate.
6. The novel nonlinear analog circuit fault diagnosis device according to claim 4, characterized in that a worm gear is fixedly connected to the outer surface of the threaded rod and positioned on the top of the moving plate.
7. The novel nonlinear analog circuit fault diagnosis device as claimed in claim 4, wherein a second motor is fixedly connected to the back of the cover plate and positioned on the right side of the threaded rod, and a worm is fixedly connected to an output shaft of the second motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011125583.2A CN112230129A (en) | 2020-10-20 | 2020-10-20 | Novel nonlinear analog circuit fault diagnosis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011125583.2A CN112230129A (en) | 2020-10-20 | 2020-10-20 | Novel nonlinear analog circuit fault diagnosis device |
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| Publication Number | Publication Date |
|---|---|
| CN112230129A true CN112230129A (en) | 2021-01-15 |
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ID=74119228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011125583.2A Pending CN112230129A (en) | 2020-10-20 | 2020-10-20 | Novel nonlinear analog circuit fault diagnosis device |
Country Status (1)
| Country | Link |
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| CN (1) | CN112230129A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113053258A (en) * | 2021-03-31 | 2021-06-29 | 深圳市希恩凯电子有限公司 | OLED display screen for high-pressure environment |
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| CN211240573U (en) * | 2019-10-21 | 2020-08-11 | 浙江海洋大学 | Remote information monitor terminal based on wisdom agricultural |
| CN211263581U (en) * | 2019-11-26 | 2020-08-14 | 深圳泰尔通测科技有限公司 | Novel oscilloscope ventilates dustproof device |
| CN211293034U (en) * | 2019-11-07 | 2020-08-18 | 深圳泰尔通测科技有限公司 | Novel oscilloscope cooling device |
| CN215009021U (en) * | 2021-05-13 | 2021-12-03 | 武汉正鼎源电气自动化有限公司 | High-efficient radiating vertical switch board |
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2020
- 2020-10-20 CN CN202011125583.2A patent/CN112230129A/en active Pending
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|---|---|---|---|---|
| CN205050043U (en) * | 2015-09-21 | 2016-02-24 | 天津普诚华科技有限公司 | Dustproof heat abstractor of machine case |
| CN207818312U (en) * | 2017-12-27 | 2018-09-04 | 东莞市锦轩电子有限公司 | A kind of inductor having cooling mechanism |
| CN209055577U (en) * | 2018-11-12 | 2019-07-02 | 河北佳讯飞扬科技发展有限公司 | A kind of new oscilloscope |
| CN211240573U (en) * | 2019-10-21 | 2020-08-11 | 浙江海洋大学 | Remote information monitor terminal based on wisdom agricultural |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113053258A (en) * | 2021-03-31 | 2021-06-29 | 深圳市希恩凯电子有限公司 | OLED display screen for high-pressure environment |
| CN113053258B (en) * | 2021-03-31 | 2022-05-03 | 深圳市希恩凯电子有限公司 | OLED display screen for high-pressure environment |
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Application publication date: 20210115 |