CN107063914A - Air particle continuous monitoring sampler based on weight method - Google Patents
Air particle continuous monitoring sampler based on weight method Download PDFInfo
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- CN107063914A CN107063914A CN201611178896.8A CN201611178896A CN107063914A CN 107063914 A CN107063914 A CN 107063914A CN 201611178896 A CN201611178896 A CN 201611178896A CN 107063914 A CN107063914 A CN 107063914A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- General Health & Medical Sciences (AREA)
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- General Physics & Mathematics (AREA)
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- Engineering & Computer Science (AREA)
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention belongs to air particle Sampling techniques field, more particularly to a kind of air particle continuous monitoring sampler based on weight method, including Film laminating apparatus structure, collecting mechanism, manipulator, storing mechanism, filter membrane chuck, Weighing mechanism and balanced controls；Film laminating apparatus structure is fixed on the supporting plate, the Film laminating apparatus structure includes upper film casing, the upper and lower part of the upper film casing is respectively provided with through hole and upper film lower through-hole on film, the filter membrane clip is placed in the upper film lower through-hole, filter membrane chuck includes filter membrane clip and film cylinder, filter membrane is fixed and is encased in the film cylinder by filter membrane clip, the bottom of upper film lower through-hole is fixed with film linear electric motors, the top of upper film linear electric motors is fixed with film pallet, and the upper film pallet is deep into the film cylinder and coordinated with the filter membrane clip.The present apparatus can continuously work 7 days or 15 days, be compared with monofilm sampler, not only reduce substantial amounts of manpower output, and reduce the possibility made a fault during frequent operation.
Description
Technical field
Connect the invention belongs to air particle Sampling techniques field, more particularly to a kind of air particle based on weight method
Continuous monitoring sampler.
Background technology
In the manual monitoring method (gravimetric method) of ambient air particulate matter (PM2.5), main flow sampler in the market
Way be sampling and separate operation of weighing, sampler only be responsible for sampling, filter membrane is then taken into laboratory and goes to weigh, whole mistake
Journey compares labor intensive, and can not obtain the weightening of Sampling particles thing in time, adds daily operation, once in any one operation
Link, which goes wrong, will all cause the deviation of result.
The content of the invention
It is a primary object of the present invention to overcome the shortcomings of above-mentioned technology, and provide a kind of air particles based on weight method
Thing continuous monitoring sampler.
The present invention to achieve the above object, using following technical scheme：A kind of air particle based on weight method is continuous
Monitor sampler, it is characterised in that：Including Film laminating apparatus structure, collecting mechanism, manipulator, storing mechanism, filter membrane chuck, Weighing mechanism
And balanced controls；The Film laminating apparatus structure is fixed on the supporting plate, and the Film laminating apparatus structure includes upper film casing, the upper film casing
Upper and lower part be respectively provided with through hole and upper film lower through-hole on film, the filter membrane clip is placed in the upper film lower through-hole,
The filter membrane chuck includes filter membrane clip and film cylinder, and filter membrane is fixed and be encased in film cylinder by the filter membrane clip, it is described on
The bottom of film lower through-hole is fixed with film linear electric motors, and the top of the upper film linear electric motors is fixed with film pallet, it is described on
Film pallet is deep into the film cylinder and coordinated with the filter membrane clip；
The collecting mechanism is located at the side of the Film laminating apparatus structure, and the collecting mechanism includes cutter, sliding bar, collection
Lifting motor, upper flexible valve, lower valve, the sliding bar are fixed in the supporting plate, and the cutter passes through fixed mount
On the sliding bar, the bottom activity of the upper flexible valve and the cutter coordinates, and the upper flexible valve leads to
Cross sliding panel to be slidably matched with the sliding bar, the collection lifting motor is arranged on the fixed mount, gathers lifting motor
Leading screw and the sliding panel screw thread coordinate；
The balanced controls are located at the side of the collecting mechanism, and the balanced controls are main to be made up of balance branch cylinder, is put down
Weighing apparatus branch cylinder upper bands have the balance collet for placing film folder；
The Weighing mechanism is located at the side of the balanced controls, and the Weighing mechanism includes electronic balance and is arranged on
The collet of weighing for being used for placing film folder is carried on the branch cylinder of weighing on the electronic balance top, the branch cylinder of weighing；
The manipulator is arranged on the middle part of the supporting plate, and the manipulator includes movable plate, straight line clamping motor, two
Block clamping plate, manipulator lifting motor, manipulator electric rotating machine, manipulator control plate, manipulator pinboard；The manipulator rotation
Motor is arranged on the manipulator control plate, and the output end of manipulator electric rotating machine is connected to the manipulator pinboard
Control machinery pinboard is rotated, and the manipulator lifting motor is arranged on the manipulator pinboard, the manipulator lifting
The leading screw of motor coordinates with robot blade screw thread, is moved up and down for control machinery hand-held board, the movable plate is fixed on institute
State in robot blade, be more than the circular hole of film cylinder on the movable plate with diameter, the two clamping plates are separately mounted to circular hole
Both sides be placed in the groove inside movable plate, the middle part of two clamping plates is hinged with the movable plate respectively, the end of two clamping plates
End is coordinated by the output end of connecting plate and the straight line clamping motor, and the straight line clamping motor is fixed on the movable plate
Rear portion.
The stocking mechanism is arranged at the side of the Film laminating apparatus structure, and the stocking mechanism includes storage station casing, institute
State and electronic cooling module is carried on storage station casing, the upper and lower part of the storage station casing, which is respectively provided with storage, to be led to
Through hole coordinates with closure in hole and storage lower through-hole, the storage, and the storage lower through-hole coordinates with storage tray, described
Storage station film cylinder is placed with storage lower through-hole, storage tray is deep into the inside of the storage station film cylinder, the storage
Pallet drives it to move up and down by storage linear electric motors.
Preferably, the filter membrane clip be divided into above and below clamping two parts, filter membrane and supporting network are placed in filter membrane clip.
Preferably, in addition to protection casing, the Film laminating apparatus structure, collecting mechanism, manipulator, storing mechanism and filter membrane clip
Set, which encloses, to be placed in the guard box body.
Preferably, storage station door is installed on the storage station casing.
Preferably, film chamber door is installed on the upper film casing.
Preferably, it is provided with Temperature Humidity Sensor in the storage station casing.
Preferably, the two ends of the closure are slidably matched with being tightly connected bar respectively, and two are tightly connected between bar admittedly
Fixed one is tightly connected plate, and described be tightly connected in the middle part of plate is provided with sealed and linear motor driven, the sealed and linear motor driven it is defeated
Go out end to be connected with the closure, two tops for being tightly connected bar are connected with the protection casing.
The beneficial effects of the invention are as follows:Relative to prior art, the present apparatus can continuously work 7 days or 15 days, Ke Yizhi
The continuous work of 16 filter membranes is held, is compared with traditional sampler, the sampler based on weight method is internally integrated with one ten
A ten thousandth or hundred a ten thousandth electronic balances, the particulate matter weight after sampling can directly read out by balance, so
Substantial amounts of manpower output is not only reduced, and reduces the possibility made a fault during frequent operation.Based on weight method
Air particle continuous monitoring sampler both can be for being compared with automatic Weather Station, also can be as PM2.5 automonitors
Device is used.One stylobate in weight method sampler equivalent to links such as balance room, hand sampling device, manual samplings in a machine
Realized on device.
Brief description of the drawings
Fig. 1 is the stereogram of the present invention；
Fig. 2 is robot manipulator structure schematic diagram in the present invention；
Fig. 3 is the stereogram in another direction in the present invention；
Fig. 4 is the structural representation of the filter membrane chuck in the present invention；
Fig. 5 is the overall installation diagram of the filter membrane chuck in the present invention；
Fig. 6 is the top view of the present invention；
Fig. 7 is the overall structure figure of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and preferred embodiment describe in detail the present invention embodiment.
As shown in Fig. 1-Fig. 7, a kind of air particle continuous monitoring sampler based on weight method, including Film laminating apparatus structure 1,
Collecting mechanism 2, manipulator 3, storing mechanism 4, filter membrane chuck 5, Weighing mechanism 6 and balanced controls 7；
As shown in figure 1, the Film laminating apparatus structure 1 is fixed in supporting plate 8, the Film laminating apparatus structure includes upper film casing 11, institute
The upper and lower part for stating film casing is respectively provided with through hole 12 and upper film lower through-hole 13 on film, as shown in Figure 4 and Figure 5, described
Filter membrane chuck 5 is placed in the upper film lower through-hole, and the filter membrane chuck includes filter membrane clip 51 and film cylinder 52, and the filter membrane clip will
Filter membrane is fixed and is encased in film cylinder, the filter membrane clip be divided into above and below clamping two parts, filter membrane 53 and supporting network 54
It is placed in filter membrane clip.The bottom of the upper film lower through-hole is fixed with film linear electric motors 14, the top of the upper film linear electric motors
Film pallet is fixed with, the upper film pallet is deep into the film cylinder and coordinated with the filter membrane clip；On the upper film casing
Film chamber door 15 is installed.Film laminating apparatus structure is used to filter membrane being sent in equipment, during work, is first placed on the filter membrane chuck of whole box
, it is necessary to which during upper film, the upper film linear electric motors of filter membrane lower through-hole bottom start in upper film lower through-hole, film pallet rising in drives, on
Film pallet promotes the filter membrane clip of foot, and the filter membrane clip overlayed in film cylinder is pulled to top, and the filter membrane clip of topmost is from upper film
Stretched out in upper through hole, upper film linear electric motors stop motion, wait manipulator to come to take filter membrane clip away.
As shown in figure 1, the collecting mechanism 2 is located at the side of the Film laminating apparatus structure, the collecting mechanism includes cutter
21st, sliding bar 22, collection lifting motor 23, upper flexible valve 24, lower valve 25, the sliding bar are fixed on the supporting plate
On, the cutter is arranged on the sliding bar by fixed mount 26, the bottom of the upper flexible valve and the cutter
Activity coordinates, and the upper flexible valve is slidably matched by sliding panel 27 with the sliding bar, and the collection lifting motor is installed
On the fixed mount, the leading screw and the sliding panel screw thread for gathering lifting motor coordinate.Collecting mechanism is mainly used for sky
Filter membrane clip is placed on lower valve by the collection of aerated particle, manipulator, upper flexible valve collection lifting motor drive under to
Lower movement, filter membrane clip is pressed onto on lower valve, cutter is acquired, and lower valve is connected generation negative pressure with a negative pressure pump, empty
Aerated particle thing is just attracted on filter membrane.
The balanced controls 7 are located at the side of the collecting mechanism, and the balanced controls are main to be made up of balance branch cylinder 71,
Balance branch cylinder upper bands have the balance collet 72 for placing film folder.
The Weighing mechanism 6 is located at the side of the balanced controls, and the Weighing mechanism includes electronic balance 61 and set
Put and carry the collet 63 of weighing for being used for placing film folder on the branch cylinder 62 of weighing on emperor's balance top, the branch cylinder of weighing.
According to manual monitoring method (gravimetric method) demand of technical standard of ambient air particulate matter (PM2.5), ten a ten thousandths essence is devised
The electronic balance room of degree, balance room is by temperature control in the range of 15-30 DEG C, and humid control is in the range of 45%-55%, it is to avoid
Influence of the humiture to weighing.
As shown in Fig. 2 the manipulator 3 is arranged on the middle part of the supporting plate, the manipulator includes movable plate 31, straight
Line clamping motor 32, two clamping plates 33, manipulator lifting motor 34, manipulator electric rotating machine 35, manipulator control plate 36, machinery
Hand pinboard 37；The manipulator electric rotating machine is arranged on the manipulator control plate, the output end of manipulator electric rotating machine
Control machinery pinboard is connected to the manipulator pinboard to rotate, the manipulator lifting motor is arranged on the machinery
On hand pinboard, leading screw and the screw thread of robot blade 38 of the manipulator lifting motor coordinate, for control machinery hand-held board
Move up and down, the movable plate is fixed in the robot blade, be more than the circular hole of film cylinder on the movable plate with diameter
39, the two clamping plates are separately mounted to the both sides of circular hole and are placed in the groove inside movable plate, the middle part difference of two clamping plates
It is hinged with the movable plate, the end of two clamping plates is coordinated by the output end of connecting plate 30 and the straight line clamping motor, institute
State the rear portion that straight line clamping motor is fixed on the movable plate.The present invention devises a kind of robot manipulator structure, and manipulator is using high
Intensity, the novel carbon fiber material of high modulus fibre are made, when the motor of control machinery hand can meet the operation of up to 300,000 times
Between, its running precision can be accurate to 0.1mm ranks.
As shown in figures 1 and 3, the stocking mechanism 4 is arranged at the side of the Film laminating apparatus structure, and the stocking mechanism includes
Store and electronic cooling module 42 carried on station casing 41, the storage station casing, the top of the storage station casing and
Bottom is respectively provided with through hole in the upper through hole 43 of storage and storage lower through-hole 44, the storage and coordinated with closure 45, the sealing
The two ends of lid are slidably matched with being tightly connected bar 46 respectively, and two are tightly connected between bar and fix one and be tightly connected plate 47, institute
State to be tightly connected in the middle part of plate and sealed and linear motor driven 48 is installed, the output end of the sealed and linear motor driven connects with the closure
Connect, two tops for being tightly connected bar are connected with the protection casing.The storage lower through-hole coordinates with storage tray, the storage
Leave through hole with storage tray to coordinate, storage station film cylinder 49 is placed with the storage lower through-hole, storage tray is deep into
The inside of the storage station film cylinder, the storage tray drives it to move up and down by storage linear electric motors.The storage station
Storage station door 40 is installed on casing.Temperature Humidity Sensor is provided with the storage station casing.The storage station case of closing
Body, using semiconductor refrigerating technology, temperature can be adjusted, and temperature is maintained 4 DEG C or less than 20 DEG C.Protected in filter membrane
The surface in space is deposited, motor drives storage storage tray to rise during storage filter membrane every time, risen to from storage station film bucket
The position of through hole, places and drops to again after filter membrane in storage station film bucket, stored every time after filter membrane, be capped a lid, protected
Card filter membrane storage is not influenceed by outside air, prevents hydrogenesis.Filter membrane may influence final because of humiture after collection
Grain amount of substance, so the system is provided with temperature control system in filter membrane storage station, is realized by semiconductor refrigerating technology
The adjustable control of temperature when filter membrane is stored, prevents the loss of particulate matter after collection.
In order to protect overall, the present apparatus also add protection casing, the Film laminating apparatus structure, collecting mechanism, machinery
Hand, storing mechanism and filter membrane chuck, which enclose, to be placed in the guard box body.
The present invention devises independent upper film, Xie Mo mechanisms first, by the way that high-precision stepper motor is to upper film and unloads film
Accurately controlled, and in upper film, unload the position that installs film in infrared sensor control on film device additional, unload film, it is ensured that sampling
Film on device, the accuracy for unloading membrane operations.
The present apparatus can continuously work 7 days or 15 days, can support the continuous work of 16 filter membranes, and monofilm sampler phase
Than not only reducing substantial amounts of manpower output, and reduce the possibility made a fault during frequent operation.The company of sampling
Continuous property is compared with monofilm sampler to be improved, and greatly reduces cost of labor and the possibility of maloperation.In addition, this dress
Put and can be compared with monofilm sampler using first filter membrane in upper film bucket as Quality Control filter membrane, can easily verify batch
The uniformity of sampling membrane.Monofilm sampler is if it is desired to increase Quality Control filter membrane, then must increase a new sampler at the scene
Blank filter membrane is put as Quality Control filter membrane.
The motor occurred in above the application is in addition to manipulator electric rotating machine 35 is rotary electric machine, and other are all straight-line electrics
Machine, can drive object to move up and down.
It is ready in upper film bucket after the film bucket equipped with filter membrane clip, when the working time set arrives, upper film bucket is straight
Line motor drives the film support in upper film bucket up to walk, and manipulator clips first filter membrane clip, and will be filtered according to the program of setting
Film folder is moved to balance or collection station, in balance station, and filter membrane clip can be balanced with current environment, in collection station,
Air acquisition is carried out according to the time of setting.After the completion of acquisition time, filter membrane clip is moved to by manipulator from collection station again
Weighing station, program control machine stops pump sampling when weighing, after being precisely weighed on balance, and program reads weighing data
And store.Manipulator task again, bucket station is moved to by the filter membrane clip on balance after the completion of weighing.Now store
The linear electric motors of bucket station drive the logical closure of storage to move up, and treat the film support that filter membrane clip is moved on bucket by manipulator
Afterwards, linear electric motors drive film support the filter membrane clip after collection is stored in bottom in bucket, after the completion of closure cover tightly again.
A gatherer process is now completed, manipulator again moves into film bucket station, waits next task to start.This work side
Formula, can carry out filter membrane according to the time of setting and weigh, meet the result for reading particulate matter weight on time on the basis of the samples.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of air particle continuous monitoring sampler based on weight method, it is characterised in that：Including Film laminating apparatus structure, harvester
Structure, manipulator, storing mechanism, filter membrane chuck, Weighing mechanism and balanced controls；
The Film laminating apparatus structure is fixed on the supporting plate, and the Film laminating apparatus structure includes upper film casing, the top of the upper film casing and
Bottom is respectively provided with through hole and upper film lower through-hole on film, and the filter membrane clip is placed in the upper film lower through-hole, the filter membrane
Chuck includes filter membrane clip and film cylinder, and filter membrane is fixed and be encased in the film cylinder, the upper film lower through-hole by the filter membrane clip
Bottom be fixed with film linear electric motors, the top of the upper film linear electric motors is fixed with film pallet, and the upper film pallet is deep
Enter into film cylinder and coordinate with the filter membrane clip；
The collecting mechanism is located at the side of the Film laminating apparatus structure, and the collecting mechanism includes cutter, sliding bar, collection lifting
Motor, upper flexible valve, lower valve, the sliding bar are fixed in the supporting plate, and the cutter is installed by fixed mount
On the sliding bar, the bottom activity of the upper flexible valve and the cutter coordinates, and the upper flexible valve passes through cunning
Dynamic plate is slidably matched with the sliding bar, and the collection lifting motor is arranged on the fixed mount, gathers the silk of lifting motor
Thick stick coordinates with the sliding panel screw thread；
The balanced controls are located at the side of the collecting mechanism, and the balanced controls are main to be made up of balance branch cylinder, balance branch
Cylinder upper bands have the balance collet for placing film folder；
The Weighing mechanism is located at the side of the balanced controls, and the Weighing mechanism includes electronic balance and is arranged on described
The collet of weighing for being used for placing film folder is carried on the branch cylinder of weighing on electronic balance top, the branch cylinder of weighing；
The manipulator is arranged on the middle part of the supporting plate, and the manipulator includes movable plate, straight line clamping motor, two pieces of folders
Plate, manipulator lifting motor, manipulator electric rotating machine, manipulator control plate, manipulator pinboard；The manipulator electric rotating machine
On the manipulator control plate, the output end of manipulator electric rotating machine is connected to control with the manipulator pinboard
Mechanical pinboard is rotated, and the manipulator lifting motor is arranged on the manipulator pinboard, the manipulator lifting motor
Leading screw and robot blade screw thread coordinate, moved up and down for control machinery hand-held board, the movable plate is fixed on the machine
On tool hand-held board, it is more than the circular hole of film cylinder on the movable plate with diameter, the two clamping plates are separately mounted to the two of circular hole
Side is placed in the groove inside movable plate, and the middle part of two clamping plates is hinged with the movable plate respectively, and the end of two clamping plates leads to
The output end for crossing connecting plate and the straight line clamping motor coordinates, and the straight line clamping motor is fixed on after the movable plate
Portion.
The stocking mechanism is arranged at the side of the Film laminating apparatus structure, and the stocking mechanism includes storage station casing, the storage
Deposit and electronic cooling module carried on station casing, the upper and lower part of the storage station casing be respectively provided with the upper through hole of storage and
Store through hole in lower through-hole, the storage with closure to coordinate, the storage lower through-hole coordinates with storage tray, in the storage
Storage station film cylinder is placed with lower through-hole, storage tray is deep into the inside of the storage station film cylinder, the storage tray
It is driven to move up and down by storage linear electric motors.
2. the air particle continuous monitoring sampler according to claim 1 based on weight method, it is characterised in that：It is described
Filter membrane clip be divided into above and below clamping two parts, filter membrane and supporting network are placed in filter membrane clip.
3. the air particle continuous monitoring sampler according to claim 1 based on weight method, it is characterised in that：Also wrap
Protection casing is included, the Film laminating apparatus structure, collecting mechanism, manipulator, storing mechanism and filter membrane chuck, which enclose, is placed in the guard box
In vivo.
4. the air particle continuous monitoring sampler according to claim 1 based on weight method, it is characterised in that：It is described
Storage station door is installed on storage station casing.
5. the air particle continuous monitoring sampler according to claim 1 based on weight method, it is characterised in that：It is described
Film chamber door is installed on upper film casing.
6. the air particle continuous monitoring sampler according to claim 1 based on weight method, it is characterised in that：It is described
Store and Temperature Humidity Sensor is provided with station casing.
7. the air particle continuous monitoring sampler according to claim 3 based on weight method, it is characterised in that：It is described
The two ends of closure are slidably matched with being tightly connected bar respectively, and two are tightly connected between bar and fix one and be tightly connected plate, institute
State to be tightly connected in the middle part of plate and sealed and linear motor driven is installed, the output end of the sealed and linear motor driven connects with the closure
Connect, two tops for being tightly connected bar are connected with the protection casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611178896.8A CN107063914B (en) | 2016-12-19 | 2016-12-19 | Air particulate matter continuous monitoring sampler based on weighing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611178896.8A CN107063914B (en) | 2016-12-19 | 2016-12-19 | Air particulate matter continuous monitoring sampler based on weighing method |
Publications (2)
| Publication Number | Publication Date |
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| CN107063914A true CN107063914A (en) | 2017-08-18 |
| CN107063914B CN107063914B (en) | 2023-08-15 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108516347A (en) * | 2018-06-05 | 2018-09-11 | 山西省环境科学研究院 | A kind of filter membrane weighed for flue dust pick up automatically put, conveying device and method |
| CN108709416A (en) * | 2018-04-26 | 2018-10-26 | 宁波大学 | Circular glass fibrous filter membrane fire drawer shape box after a kind of filter |
| CN108918762A (en) * | 2018-03-21 | 2018-11-30 | 四川众望安全环保技术咨询有限公司 | A kind of atmospheric monitoring device |
| CN109870395A (en) * | 2019-03-20 | 2019-06-11 | 河南省计量科学研究院 | Uncertainty analysis method based on the automatic weighing measurement particulate in air concentration of filter membrane |
| CN111781109A (en) * | 2020-08-06 | 2020-10-16 | 北京优瑞嘉和电子科技有限公司 | Device for automatically monitoring dust fall |
| CN117606974A (en) * | 2023-11-23 | 2024-02-27 | 康姆德润达（无锡）测量技术有限公司 | Sampling and weighing integrated machine |
| CN118090509A (en) * | 2024-04-29 | 2024-05-28 | 齐齐哈尔和瑞泰检测技术有限公司 | Automatic monitoring system for environmental air quality |
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| CN108918762A (en) * | 2018-03-21 | 2018-11-30 | 四川众望安全环保技术咨询有限公司 | A kind of atmospheric monitoring device |
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| CN117606974A (en) * | 2023-11-23 | 2024-02-27 | 康姆德润达（无锡）测量技术有限公司 | Sampling and weighing integrated machine |
| CN117606974B (en) * | 2023-11-23 | 2024-05-07 | 康姆德润达（无锡）测量技术有限公司 | Sampling and weighing integrated machine |
| CN118090509A (en) * | 2024-04-29 | 2024-05-28 | 齐齐哈尔和瑞泰检测技术有限公司 | Automatic monitoring system for environmental air quality |
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