CN109915735A - Survey meter - Google Patents
Survey meter Download PDFInfo
- Publication number
- CN109915735A CN109915735A CN201811335584.2A CN201811335584A CN109915735A CN 109915735 A CN109915735 A CN 109915735A CN 201811335584 A CN201811335584 A CN 201811335584A CN 109915735 A CN109915735 A CN 109915735A
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- China
- Prior art keywords
- connecting rod
- motor
- drive shaft
- module
- groove
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The present invention relates to a kind of survey meters, including ontology, telescoping mechanism, angle adjusting mechanism, Zhong Kong mechanism, sensor and battery, angle adjusting mechanism includes fixing seat, adjusts component and measuring probe, adjusting component includes first connecting rod, first axle, second hinge, second connecting rod, the first drive shaft and first motor, telescoping mechanism includes runner assembly, moving assembly and plate, and runner assembly includes the second motor, the second drive shaft and linkage unit；Wherein: handle is additionally provided with above ontology；Guide rail roughness is 3.2；Angle adjusting mechanism is additionally provided with limit assembly, and limit assembly includes spring, and the both ends of spring are connect with second connecting rod and fixing seat respectively.In the survey meter, by telescoping mechanism, the Telescopic to measuring probe is realized, so that larger range can be measured when telemeasurement, improves the practicability of device.
Description
Present patent application is for application No. is 2017104937021 divisional application, the applyings date of original application
Are as follows: 2017-06-26, invention and created name are as follows: a kind of portable natural gas Laser stealth material instrument.
Technical field
The present invention relates to natural gas intelligent measuring device field, in particular to a kind of survey meter.
Background technique
As government, enterprise and society are safe to gas pipeline and the pay attention to day by day of environmental protection, the safety patrol inspection of gas pipeline,
Especially leak detection increasingly seems important.Conventional Portable leakage detector is all the detection of short distance sonde-type at present.It will visit
Head is placed in the environment of combustion gas, is directly contacted with combustion gas.In actually detected, it is commonly encountered pipeline or facility is difficult to reach, very
Cannot extremely reach (such as highway, gate tightly lock courtyard, be suspended under bridge pipeline, in flower nursery, above river, high building
Inside external riser, room or other very inapproachable places etc.) the case where, carry out hidden danger to gas pipeline safety belt, and often
Probe is usually directly protruding into place to be measured by rule Portable leakage detector, if measurement narrow space and rugged, measuring probe due to
Straight setting, it may be difficult to reach place to be measured, reduce the effect of measurement, and close-in measurement also can generate safely life
Hidden danger.
Summary of the invention
1. technical problems to be solved by the inivention
The technical problem to be solved by the present invention is for overcome the deficiencies in the prior art, providing a kind of survey meter.
2. technical solution
The technical solution adopted by the present invention to solve the technical problems is: a kind of portable natural gas Laser stealth material
Instrument, including ontology, telescoping mechanism, angle adjusting mechanism, Zhong Kong mechanism, sensor and battery, the telescoping mechanism setting exist
One end of ontology, the telescoping mechanism are fixedly connected with ontology, and one end of telescoping mechanism is arranged in the angle adjusting mechanism, and
It is sequentially connected with telescoping mechanism, the inside of ontology, the telescoping mechanism and angular adjustment is arranged in the sensor and battery
Mechanism is electrically connected with Zhong Kong mechanism；
The angle adjusting mechanism includes fixing seat, adjusts component and measuring probe, and the measuring probe passes through adjusting group
Part and fixing seat are sequentially connected, and the adjusting component includes first connecting rod, first axle, second hinge, second connecting rod, the first drive
One end of fixing seat is arranged in moving axis and first motor, the first motor, and the first motor and the transmission of the first drive shaft connect
It connects, one end of first drive shaft is connect with first motor, and the other end of first drive shaft passes through second hinge and the
The middle part of two connecting rods is hinged, and the measuring probe is arranged in one end of second connecting rod, and the other end of the second connecting rod passes through the
One end of one hinge and first connecting rod is hinged, and the other end of the first connecting rod is fixedly connected with fixing seat；
Wherein, first motor is subjected to displacement by the first drive shaft to control second connecting rod, and subsequent second connecting rod will be around
First axle rotate, the variation of the angle of measuring probe is realized, to improve the practicability of survey meter.
The telescoping mechanism includes runner assembly, moving assembly and plate, and the runner assembly is arranged on plate, described
The lower section on plate and being located at runner assembly is arranged in moving assembly, and the runner assembly includes the second motor, the second drive shaft
And linkage unit, second motor are sequentially connected by the second drive shaft and linkage unit, the linkage unit include cylinder,
Third connecting rod and driving plate, the vertical cross-section of the driving plate are semicircle, one end of the third connecting rod and the fixed company of cylinder
It connects, the other end of the third connecting rod is fixedly connected with the center point of driving plate, the central axis of the third connecting rod and driving
The corresponding string of the semi-circular cross-section of plate is vertical, and the moving assembly includes guide rail, movable plate and several mobile units, the movement
Plate is arranged on guide rail and is slidably connected with guide rail, and one end of movable plate is arranged in the fixing seat, and the mobile unit is uniform
It is arranged on movable plate, the mobile unit includes the first groove and the second groove, and first groove is vertically provided at second
It the side of groove and is matched with cylinder, the vertical cross-section of second groove is semicircle, second groove and driving plate
Match, second drive shaft and driving plate are sequentially connected, and the junction of second drive shaft and driving plate is located at driving plate
At circle, the vertical central axis of the length of the third connecting rod first groove adjacent equal to the circle center distance of the second groove
Distance.
Wherein, the second motor by the second drive shaft come controls connecting rod unit rotational, then semi-circular plate first with the second groove
It matches, so that cylinder turns to the first groove, enters after the first inside grooves, then pass through cylinder and the first groove
Active force between cell wall realizes the position of movable plate, and so as to realize the flexible of sensor, convenient disposable measurement is not
The place to be measured of same distance, avoid due to the range of close-in measurement it is small caused by measurement error, improve the reality of survey meter
The property used.
Specifically, Zhong Kong mechanism includes panel, the display interface being arranged on panel, control button and several state instructions
Lamp, be arranged in panel inside middle control component, the middle control component includes central control module, is electrically connected with central control module
Display control module, motor drive module, working power module, key control module, wireless communication module and the state connect refers to
Show module, the central control module is PLC, and the display interface is electrically connected with display control module, the first motor and
Second motor is electrically connected with motor drive module, and the battery is electrically connected with working power module, the control button with
Key control module electrical connection, the status indicator lamp are electrically connected with state indicator module.
Wherein, central control module, for controlling the module of the operation of the modules intelligence in survey meter, herein,
Central control module is not only PLC, can also be single-chip microcontroller, to improve the intelligence of survey meter operation；Display control mould
Block herein, for controlling the related work information of display interface, improves survey meter work for controlling the module of display
Reliability；Motor drive module herein can control each motor for controlling the module of motor work, thus
The flexible detection for realizing detection survey meter, improves the practicality；Working power module is used to provide to survey meter and stablizes work
Make the module of voltage；Key control module, for carrying out the module by key control, herein, for user to control button
Manipulation information is acquired, to improve the operability of survey meter；Wireless communication module, by with external communication terminal into
The connection of row long distance wireless, improves the intelligence of survey meter；State indicator module, state indicator module, for carrying out state instruction
Module indicated in real time for the working condition to status indicator lamp herein, to improve the reliable of survey meter
Property.
Specifically, the display interface is liquid crystal display.
Specifically, the control button is touch key.
Specifically, the status indicator lamp includes dichromatic LED.
Specifically, the wireless communication module includes bluetooth.
Specifically, being additionally provided with handle above the ontology.
Specifically, the guide rail roughness is 3.2.
Specifically, the measuring probe is high-performance catalytic combustion type sensor.
Specifically, the angle adjusting mechanism is additionally provided with limit assembly, the limit assembly includes spring, the spring
Both ends are connect with second connecting rod and fixing seat respectively.
3. beneficial effect
The invention has the advantages that, by telescoping mechanism, being realized in the portable natural gas Laser stealth material instrument
To the flexible function of measuring probe, so that when telemeasurement, larger range can be measured and be usually difficult to touch
Natural gas, and survey crew can be made far from place to be measured, personal safety is improved, by angle adjusting mechanism, so that
When measuring small space, measuring probe can also be put in, and improve the effect of measurement, improve the practicability of measuring instrument.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of portable natural gas Laser stealth material instrument of the invention；
Fig. 2 is the structural schematic diagram of the angle adjusting mechanism of portable natural gas Laser stealth material instrument of the invention；
Fig. 3 is the structural schematic diagram of the telescoping mechanism of portable natural gas Laser stealth material instrument of the invention；
Fig. 4 is the structural schematic diagram of the linkage unit of portable natural gas Laser stealth material instrument of the invention；
Fig. 5 is the structural schematic diagram of the Zhong Kong mechanism of portable natural gas Laser stealth material instrument of the invention；
Fig. 6 is the systematic schematic diagram of portable natural gas Laser stealth material instrument of the invention；
In figure: 1. Zhong Kong mechanisms, 2. sensors, 3. ontologies, 4. telescoping mechanisms, 5. angle adjusting mechanisms, 6. batteries, 7.
Fixing seat, 8. springs, 9. first connecting rods, 10. first axles, 11. second connecting rods, 12. measuring probes, 13. second hinges, 14.
First drive shaft, 15. first motors, 16. plates, 17. guide rails, 18. movable plates, 19. first grooves, 20. second grooves, 21.
Linkage unit, 22. second drive shafts, 23. cylinders, 24. third connecting rods, 25. driving plates, 26. control buttons, 27. display interfaces,
28. panel, 29. status indicator lamps, 30. central control modules, 31. display control modules, 32. motor control modules, 33. work
Power module, 34. key control modules, 35. wireless communication modules, 36. state indicator modules, 37. second motors.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
As shown in figs 1 to 6, a kind of portable natural gas Laser stealth material instrument, including ontology 3, telescoping mechanism 4, angle
Regulating mechanism 5, Zhong Kong mechanism 1, sensor 2 and battery 6, one end of ontology 3 is arranged in the telescoping mechanism 4, described flexible
Mechanism 4 is fixedly connected with ontology 3, and one end of telescoping mechanism 4 is arranged in the angle adjusting mechanism 5, and is driven with telescoping mechanism 4
The inside of ontology 3 is arranged in connection, the sensor 2 and battery 6, and the telescoping mechanism 4 and angle adjusting mechanism 5 are in
Mechanism 1 is controlled to be electrically connected；
The angle adjusting mechanism 5 includes that fixing seat 7, adjusting component and measuring probe 12, the measuring probe 12 pass through
It adjusts component and fixing seat 7 to be sequentially connected, the adjusting component includes first connecting rod 9, first axle 10, second hinge 13, the
Two connecting rods 11, the first drive shaft 14 and first motor 15, the first motor 15 are arranged in one end of fixing seat 7, and described first
Motor 15 and the first drive shaft 14 are sequentially connected, and one end of first drive shaft 14 is connect with first motor 15, and described first
The other end of drive shaft 14 is hinged by second hinge 13 and the middle part of second connecting rod 11, and the measuring probe 12 is arranged second
One end of connecting rod 11, the other end of the second connecting rod 11 is hinged by first axle 10 and one end of first connecting rod 9, and described the
The other end of one connecting rod 9 is fixedly connected with fixing seat 7；
Wherein, first motor 15 is subjected to displacement by the first drive shaft 14 to control second connecting rod 11, subsequent second connecting rod
11 will rotate around first axle 10, realize the variation of the angle of measuring probe, to improve the reality of survey meter
The property used.
The telescoping mechanism 4 includes runner assembly, moving assembly and plate 16, and the runner assembly is arranged in plate 16
On, the moving assembly is arranged on plate 16 and is located at the lower section of runner assembly, the runner assembly include the second motor 37,
Second drive shaft 22 and linkage unit 21, second motor 37 are sequentially connected by the second drive shaft 22 with linkage unit 21,
The linkage unit 21 includes cylinder 23, third connecting rod 24 and driving plate 25, and the vertical cross-section of the driving plate 25 is semicircle,
One end of the third connecting rod 24 is fixedly connected with cylinder 23, the other end of the third connecting rod 24 and the center point of driving plate 25
It is fixedly connected, the central axis of the third connecting rod 24 string corresponding with the semi-circular cross-section of driving plate 25 is vertical, the movement
Component includes guide rail 17, movable plate 18 and several mobile units, and the movable plate 18 is arranged on guide rail 17 and slides with guide rail 17
One end of movable plate 18 is arranged in dynamic connection, the fixing seat 7, and the mobile unit is uniformly arranged on movable plate 18, described
Mobile unit include the first groove 19 and the second groove 20, first groove 19 be vertically provided at the side of the second groove 20 and
It is matched with cylinder 23, the vertical cross-section of second groove 20 is semicircle, and second groove 20 is matched with driving plate 25, institute
It states the second drive shaft 22 to be sequentially connected with driving plate 25, the junction of second drive shaft 22 and driving plate 25 is located at driving plate
25 round place, the length of the third connecting rod 24 first groove 19 adjacent equal to the circle center distance of the second groove 20 it is vertical
The distance of central axis.
Wherein, the second motor 37 is by the second drive shaft 22 come the rotation of controls connecting rod unit 21, then semi-circular plate is first with the
Two grooves 20 match, so that cylinder 23 turns at the first groove 19, enter after 19 inside of the first groove, then pass through
Active force between 19 cell wall of cylinder 23 and the first groove, realizes the position of movable plate 18, so as to realize sensor 2
It is flexible, the place to be measured of convenient disposable measurement different distance, avoid due to the range of close-in measurement it is small caused by measure
Error improves the practicability of survey meter.
If specifically, Zhong Kong mechanism 1 include panel 28, the display interface 27 being arranged on panel 28, control button 26 and
Dry status indicator lamp 29, be arranged in panel 28 inside middle control component, the middle control component include central control module 30, with
The display control module 31 of the electrical connection of central control module 30, working power module 33, presses key control mould at motor drive module 32
Block 34, wireless communication module 35 and state indicator module 36, the central control module 30 are PLC, the display interface 27 with
Display control module 31 is electrically connected, and the first motor 15 is electrically connected with motor drive module 32 with the second motor 37, described
Battery 6 is electrically connected with working power module 33, and the control button 26 is electrically connected with key control module 34, and the state refers to
Show that lamp 29 is electrically connected with state indicator module 36.
Wherein, central control module 30, for controlling the module of the operation of the modules intelligence in survey meter, at this
In, central control module 30 is not only PLC, can also be single-chip microcontroller, to improve the intelligence of survey meter operation；Display control
Molding block 31 herein, for controlling the related work information of display interface 27, improves spy for controlling the module of display
Survey the reliability of instrument work；Motor drive module 32, for control motor work module, herein, can to each motor into
Row control improves the practicality to realize the flexible detection of detection survey meter；Working power module 33 is used to spy
It surveys instrument and the module of stable operating voltage is provided；Key control module 34 herein, is used for for carrying out the module by key control
User is acquired the manipulation information of control button 26, to improve the operability of survey meter；Wireless communication module 35,
By carrying out long distance wireless connection with external communication terminal, the intelligence of survey meter is improved；State indicator module 36, state instruction
Module 36 herein, is referred in real time for carrying out the module of state instruction for the working condition to status indicator lamp 29
Show, to improve the reliability of survey meter.
Specifically, the display interface 27 is liquid crystal display.
Specifically, the control button 26 is touch key.
Specifically, the status indicator lamp 29 includes dichromatic LED.
Specifically, the wireless communication module 35 includes bluetooth.
Specifically, the top of the ontology 3 is additionally provided with handle.
Specifically, 17 roughness of guide rail is 3.2.
Specifically, the measuring probe 12 is high-performance catalytic combustion type sensor 2.
Specifically, the angle adjusting mechanism is additionally provided with limit assembly, the limit assembly includes spring 8, the spring 8
Both ends connect respectively with second connecting rod 11 and fixing seat 7.
Compared with prior art, it in the portable natural gas Laser stealth material instrument, by telescoping mechanism 4, realizes pair
The flexible function of measuring probe 12 can measure larger range and usually be difficult to touch so that when telemeasurement
Natural gas, and survey crew can be made far from place to be measured, personal safety is improved, by angle adjusting mechanism 5, so that
When measuring small space, measuring probe 12 can also be put in, and improve the effect of measurement, improve the practicability of measuring instrument.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (1)
1. survey meter, which is characterized in that including ontology, the telescoping mechanism, the angle adjusting mechanism, Zhong Kong mechanism, sensing
One end of ontology is arranged in device and battery, the telescoping mechanism, and the telescoping mechanism is fixedly connected with ontology, the angle tune
One end of telescoping mechanism is arranged in section mechanism, and is sequentially connected with telescoping mechanism, and the sensor and battery are arranged in ontology
Inside, the telescoping mechanism and angle adjusting mechanism are electrically connected with Zhong Kong mechanism；
The angle adjusting mechanism includes fixing seat, adjusts component and measuring probe, the measuring probe by adjust component with
Fixing seat transmission connection, the adjusting component includes first connecting rod, first axle, second hinge, second connecting rod, the first drive shaft
And one end of fixing seat is arranged in first motor, the first motor, the first motor and the first drive shaft are sequentially connected, institute
The one end for stating the first drive shaft is connect with first motor, and the other end of first drive shaft passes through second hinge and second connecting rod
Middle part it is hinged, one end of second connecting rod is arranged in the measuring probe, and the other end of the second connecting rod passes through first axle
Hinged with one end of first connecting rod, the other end of the first connecting rod is fixedly connected with fixing seat.
The telescoping mechanism includes runner assembly, moving assembly and plate, and the runner assembly is arranged on plate, the movement
The lower section on plate and being located at runner assembly is arranged in component, and the runner assembly includes the second motor, the second drive shaft and company
Bar unit, second motor are sequentially connected by the second drive shaft and linkage unit, and the linkage unit includes cylinder, third
The vertical cross-section of connecting rod and driving plate, the driving plate is semicircle, and one end of the third connecting rod is fixedly connected with cylinder, institute
The other end for stating third connecting rod is fixedly connected with the center point of driving plate, and the half of the central axis of the third connecting rod and driving plate
The corresponding string of circular cross-section is vertical, and the moving assembly includes guide rail, movable plate and several mobile units, the movable plate setting
It is slidably connected on guide rail and with guide rail, one end of movable plate is arranged in the fixing seat, and the mobile unit is uniformly arranged on
On movable plate, the mobile unit includes the first groove and the second groove, and first groove is vertically provided at the second groove
It side and is matched with cylinder, the vertical cross-section of second groove is semicircle, and second groove is matched with driving plate, described
Second drive shaft and driving plate are sequentially connected, and the junction of second drive shaft and driving plate is located at the circle of driving plate,
The distance of the vertical central axis of the length of the third connecting rod first groove adjacent equal to the circle center distance of the second groove；
Zhong Kong mechanism includes panel, the display interface being arranged on panel, control button and several status indicator lamps, is arranged in face
The middle control component of the inside of plate, the middle control component includes central control module, the display control being electrically connected with central control module
Molding block, motor drive module, working power module, key control module, wireless communication module and state indicator module, it is described
Central control module is PLC, and the display interface is electrically connected with display control module, the first motor and the second motor with
Motor drive module electrical connection, the battery are electrically connected with working power module, the control button and key control module
Electrical connection, the status indicator lamp are electrically connected with state indicator module；
Handle is additionally provided with above the ontology；
The guide rail roughness is 3.2；
The angle adjusting mechanism is additionally provided with limit assembly, and the limit assembly includes spring, the both ends of the spring respectively with
Second connecting rod is connected with fixing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811335584.2A CN109915735B (en) | 2017-06-26 | 2017-06-26 | Detecting instrument |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710493702.1A CN107120534B (en) | 2017-06-26 | 2017-06-26 | A kind of portable natural gas Laser stealth material instrument |
| CN201811335584.2A CN109915735B (en) | 2017-06-26 | 2017-06-26 | Detecting instrument |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710493702.1A Division CN107120534B (en) | 2017-06-26 | 2017-06-26 | A kind of portable natural gas Laser stealth material instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109915735A true CN109915735A (en) | 2019-06-21 |
| CN109915735B CN109915735B (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710493702.1A Active CN107120534B (en) | 2017-06-26 | 2017-06-26 | A kind of portable natural gas Laser stealth material instrument |
| CN201811335584.2A Active CN109915735B (en) | 2017-06-26 | 2017-06-26 | Detecting instrument |
| CN201811335583.8A Active CN109386740B (en) | 2017-06-26 | 2017-06-26 | Natural gas detector |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710493702.1A Active CN107120534B (en) | 2017-06-26 | 2017-06-26 | A kind of portable natural gas Laser stealth material instrument |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811335583.8A Active CN109386740B (en) | 2017-06-26 | 2017-06-26 | Natural gas detector |
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| Country | Link |
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| CN (3) | CN107120534B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111175674A (en) * | 2020-01-19 | 2020-05-19 | 上海速磁科技有限公司 | High-precision magnetic field measuring equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151981B (en) * | 2018-01-08 | 2023-07-21 | 河北工业大学 | Air leakage detection system of medium-low pressure air compressor for power plant |
| CN108362835B (en) * | 2018-02-11 | 2021-02-02 | 河北工程大学 | Geological exploration gas detector |
| CN109567397B (en) * | 2018-11-27 | 2021-12-10 | 中山市一利办公家具有限公司 | Novel station is used in official working |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175674A (en) * | 2020-01-19 | 2020-05-19 | 上海速磁科技有限公司 | High-precision magnetic field measuring equipment |
| CN111175674B (en) * | 2020-01-19 | 2022-07-22 | 上海速磁科技有限公司 | High-precision magnetic field measuring equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109386740B (en) | 2020-11-06 |
| CN109386740A (en) | 2019-02-26 |
| CN109915735B (en) | 2020-11-13 |
| CN107120534A (en) | 2017-09-01 |
| CN107120534B (en) | 2019-01-04 |
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