CN109765159A - A kind of dust concentration detector - Google Patents
A kind of dust concentration detector Download PDFInfo
- Publication number
- CN109765159A CN109765159A CN201910188730.1A CN201910188730A CN109765159A CN 109765159 A CN109765159 A CN 109765159A CN 201910188730 A CN201910188730 A CN 201910188730A CN 109765159 A CN109765159 A CN 109765159A
- Authority
- CN
- China
- Prior art keywords
- positive
- side column
- rear portion
- inner ring
- circuit board
- 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.)
- Pending
Links
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention relates to dust the field of test technology.A kind of dust concentration detector, the device include pedestal, positive eight side column, eyeglass, small eyeglass, perspective board, circuit board and sleeve；Pedestal includes ring flange, shell, detection inner ring, air inlet inner ring and air outlet adapter；The rear portion of inner ring is connected with positive eight side column front afterwards；The rear portion of positive eight side column is arranged in perspective board, is provided with the sight vane to match with camera lens circular hole on perspective board, engagement plate is provided with light-emitting block on perspective board, light-emitting block front is provided with light emitting source, and light emitting source matches with lightening hole；The rear portion of perspective board is arranged in circuit board, and downside is provided with minimum eyeglass in the front of circuit board；The rear portion of circuit board is provided with scattered light intensity sensor, and the rear portion of sleeve and positive eight side column is connected through a screw thread and perspective board and circuit board are arranged in sleeve.The beneficial effects of the present invention are: accurate and accuracy is high, small volume, folding is carried and facilitated.
Description
Technical field
The present invention relates to dust the field of test technology more particularly to a kind of dust concentration detectors.
Background technique
Mankind's activity or oneself process make a large amount of dust enter atmosphere, their main source is plant emissions, automobile
Tail gas, land reclamation and cultivation are opened up wasteland, and forest fire, dust is presented enough concentration and has reached time enough, and dust is to human health damage
Greatly especially with small particle for very, small particle is rich in a large amount of poisonous and harmful substances and atmospheric residence time is long, and
Sedimentation position in human respiratory tract is deeper, and harm is bigger, influences the comfortable of human body, health and wellbeing, or even compromise life
State environment.The measurement of dust in air, no matter to atmospheric environment or be essential to the working environment of the mankind.Dust
Detector abbreviation dust instrument, is also dust measurement or Dust Testing Instrument, mainly for detection of the dust concentration in surrounding air,
Dust instrument is widely used in disease prevention and control center, mine, metallurgy, power plant, chemical industry manufacture, health supervision, environmental protection, ring
Border on-line monitoring etc..Currently, existing Dust Testing Instrument, volume is larger, inconvenient to carry, comparatively laborious in operating process,
And it is inconvenient to be even fixedly installed to eminence or need to detect the place of dust concentration.
Summary of the invention
The purpose of the present invention is: in view of the deficienciess of the prior art, providing a kind of small volume, carrying and conveniently opening
It closes, can be directly mounted at detection, can prevent other gases from entering the dust concentration detector of interference detection results.
For the purpose of the present invention, it is achieved using following technical scheme:
A kind of dust concentration detector, the device include pedestal, positive eight side column, eyeglass, small eyeglass, perspective board, circuit board and set
Cylinder；The pedestal includes ring flange, shell, detection inner ring, air inlet inner ring and air outlet adapter；It is provided in the middle part of ring flange and is in
The ring flange through-hole of racetrack shape；The rear portion of ring flange is arranged in the shell, and exhaust through hole is arranged in the lower part of shell；It is described
Air outlet adapter setting be provided in exhaust through hole, on shell with inner ring cooperation inner ring matching hole, the detection inner ring,
Air inlet inner ring is separately positioned in inner ring matching hole, is provided with racetrack through-hole in the middle part of the air inlet inner ring；The detection
Inner ring is annular in shape, and the rear portion for detecting inner ring is connected with the positive eight side column front；Setting passes through hinged on the left of positive eight side column
Plate and housing hinge；The right part setting of positive eight side column passes through opening-closing lock and cage connection；Ring is provided on before positive eight side column
Shape slot is provided with Jing Quan on the annular groove, and the eyeglass is arranged on Jing Quan, and the middle downside of positive eight side column is provided with mirror
The rear portion of camera lens circular hole is arranged in head circular hole, the small eyeglass；The middle upside of positive eight side column is provided with lightening hole；Described is saturating
The rear portion of positive eight side column is set depending on plate, the sight vane to match with camera lens circular hole is provided on perspective board, is passed through on perspective board
Engagement plate is provided with light-emitting block, and the light-emitting block front is provided with light emitting source, and light emitting source matches with the lightening hole；Institute
The rear portion of perspective board is arranged in the circuit board stated, and downside is provided with minimum eyeglass in the front of circuit board；The rear portion of circuit board is set
It is equipped with scattered light intensity sensor.The rear portion of the sleeve and positive eight side column is connected through a screw thread and perspective board and circuit board are equal
It is arranged in sleeve；The rear portion of sleeve is provided with friction striped.Small volume carries and facilitates folding, can be directly mounted to
At detection.
Preferably, being provided with regulating tank at the top of positive eight side column, described is provided with adjusting group in regulating tank
Part；The adjusting component includes camera adjusting stick, glass bar fixed bolt, glass bar and adjusts valve fitment；The camera lens
The lower part of regulating rod is provided with longitudinal glass bar slot；The glass bar fixed bolt and glass bar are separately positioned on glass bar
The top of slot and the lower part of glass bar slot；It is small that glass bar fixation is additionally provided between the glass bar and glass bar fixed bolt
Stud；The top of camera adjusting stick is provided with lateral spring groove, and spring, the regulating valve are provided in the spring groove
The top of positive eight side column is arranged in accessory and the top setting of camera adjusting stick is being adjusted in valve fitment；Valve fitment is adjusted to be provided with
The spring matching hole to match with spring groove, and steel column is respectively arranged between spring groove two sides and spring matching hole；Described
It adjusts and is additionally provided with adjusting sleeve at the top of valve fitment.It further can adjust and improve adjusting and testing efficiency.
Preferably, the device further includes sleeve, the rear portion of the sleeve and positive eight side column is connected through a screw thread and thoroughly
It is arranged in sleeve depending on plate and circuit board；The rear portion of sleeve is provided with friction striped.
Preferably, the ring flange is in round pie, shell is in positive eight side columns shape；The air outlet adapter is in hollow
It is cylindric；The thickness of the detection inner ring is greater than the thickness of air inlet inner ring.It can more preferably be attached on other devices and be tested.
Preferably, being provided with 3 guide posts on the circuit board, 3 guide posts are distributed in three points of equilateral triangle, electricity
The rear portion of road plate is additionally provided with circuit board sheath.Better protective effect and electric conductivity can be played.
Preferably, being provided with eyeglass guard ring between the eyeglass and mirror circle；The small eyeglass and camera lens circular hole it
Between be provided with small eyeglass guard ring；Mirror is provided between the Jing Quan and base rear portion to encircle for protection；Positive eight side column and set
Sleeve gasket is provided between cylinder.Better connection effect can be played, service life is increased, reduces abrasion.
Preferably, the upper left quarter of positive eight side column of positive eight side column is provided with plug.Charging can be facilitated.
Compared with prior art, the beneficial effects of the present invention are:
(1) small volume is convenient for carrying；
(2) convenient for folding and it is convenient for disassembly and assembly；
(3) it can be directly mounted at detection, prevent other gases from entering interference detection results；
(4) scattering formula by light can be improved measuring accuracy and test accuracy.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is explosive view of the invention.
Specific embodiment
In order to make the present invention more obvious and understandable, cooperation attached drawing is described in detail below.
As depicted in figs. 1 and 2, a kind of dust concentration detector, the Dust Testing Instrument include pedestal, positive eight side column 2, eyeglass
3, small eyeglass 4, adjusting component, perspective board 6, circuit board 7 and sleeve 8.Pedestal includes ring flange 101, shell 102, detection inner ring
103, air inlet inner ring 104, air outlet adapter 105.Ring flange 101 is in round pie, and the middle part of ring flange 101 is provided in racetrack shape
Ring flange through-hole 1011, the outer ring of ring flange 101 is circumferentially provided with multiple connecting holes.Ring flange 101 is arranged in shell 102
Rear portion, shell 102 are in positive eight side columns shape.It is provided with the inner ring matching hole 1021 with inner ring cooperation on shell 102, detects inner ring
103, air inlet inner ring 104 is separately positioned in inner ring matching hole, and detection inner ring 103 is annular in shape, detects rear portion and the institute of inner ring
Positive eight side columns, the 2 front linking stated；Racetrack through-hole 1041 is provided in the middle part of air inlet inner ring 104.The thickness for detecting inner ring 103 is big
In the thickness of air inlet inner ring 104.Exhaust through hole 1022 is arranged in the lower part of shell 102.Air outlet adapter 105 is arranged in exhaust through hole
Circular through hole 1051 is provided on 1022 and in the middle part of air outlet adapter 105.It can be improved test accuracy.The positive setting of eight side column 2 exists
The left side setting at the rear portion of pedestal, positive eight side column 2 is hinged by articulated slab 26 and pedestal.The right part of positive eight side column 2 is provided with out
Close lock 27.The upper left quarter of positive eight side column 2 is provided with plug 28.Can be convenient for folding, and facilitate charging.Before positive eight side column 2
It is provided with annular groove 21 on face, mirror circle 211 is provided on annular groove 21, eyeglass 3 is arranged on mirror circle 211, in positive eight side column 2
Downside is provided with camera lens circular hole 22, and the rear portion of camera lens circular hole 22 is arranged in small eyeglass 4.The middle upside of positive eight side column 2 is provided with hair
Unthreaded hole 23.The top of positive eight side column 2 is provided with regulating tank 24, adjusts component and is arranged in regulating tank 24, adjusting component includes mirror
Head regulating rod 51, glass bar fixed bolt 52, glass bar 53 and adjusting valve fitment 54.The lower part of camera adjusting stick 51 is provided with vertical
To glass bar slot.Glass bar fixed bolt 52 and glass bar 53 are separately positioned under the top and glass bar slot of glass bar slot
Portion.The fixed small stud 521 of glass bar is additionally provided between glass bar 53 and glass bar fixed bolt 52.Adjust 54 top of valve fitment
It is provided with and adjusts sleeve 55.Further it can adjust and improve to adjust and be set with the top of testing efficiency camera adjusting stick 51
It is equipped with lateral spring groove 512, spring 5121 is provided in spring groove 512, adjusts the top that positive eight side column 2 is arranged in valve fitment 54
Portion and the top of camera adjusting stick 51, which are arranged, to be adjusted in valve fitment 54.Valve fitment 54 is adjusted to be provided with and 512 phase of spring groove
The spring matching hole 541 matched, and steel column 542 is respectively arranged between 512 two sides of spring groove and spring matching hole 541.Pass through tune
Section component can facilitate the adjusting of tester, also be further able to improve the precision and accuracy of test, and also give user
Bring convenience.The rear portion of positive eight side column 2 is arranged in perspective board 6, be provided on perspective board 6 match with camera lens circular hole 22 it is saturating
Window 61 is provided with light-emitting block 63 by engagement plate 62 on perspective board 6, and 63 front of light-emitting block is provided with light emitting source 631, light emitting source
631 match with lightening hole 23.The rear portion of perspective board 6 is arranged in circuit board 7, and 3 guide posts 72,3 are provided on circuit board 7 and is led
Column 72 is distributed in three points of equilateral triangle, and the rear portion of circuit board 7 is additionally provided with circuit board sheath 73.Better guarantor can be played
Shield effect and electric conductivity.Downside is provided with minimum eyeglass 71 in the front of circuit board 7.The rear portion of circuit board 7 is provided with scattered
Penetrate light intensity sensor.Sleeve 8 is connect with the rear portion of positive eight side column 2 and perspective board 6 and circuit board 7 are arranged in sleeve 8.Just
The rear portion of eight side columns 2 is provided with screw thread, and sleeve 8 is connected through a screw thread with positive eight side column 2, and the rear portion of sleeve 8 is provided with fricting strip
Line.It is easy to disassemble, convenient for opening.Eyeglass guard ring 301 is provided between eyeglass 3 and mirror circle 211.Small eyeglass 4 and camera lens circular hole 22
Between be provided with small eyeglass guard ring 401.Mirror is provided between mirror circle 211 and base rear portion to encircle for protection circle 201.Positive eight side column 2 and set
Sleeve gasket 801 is provided between cylinder 8.Better connection effect can be played, service life is increased, reduces abrasion.
When work, ring flange 101 can be mounted directly on industrial chimney or on other devices, go survey chimney inside or its
Dust concentration in his device.Flue gas or other gases are from 1011 air inlet of ring flange through-hole of ring flange 101, by air inlet inner ring
104 enter detection inner ring 103, and flue gas just detects inner ring 103 and tested, and flue gas continues into and from air outlet adapter 105
Discharge can generate scattering and the absorbing phenomenon of light, for the order of magnitude when detection when light beam is shone the particle for being considered sphere
With use optical wavelength equal or biggish particle, light scattering be optical energy attenuation principal mode.For some particulate matter, such as
There is no Multiple Scatterings, then it is related with granular size concentration to scatter light.The strong of light is scattered by scattered light intensity sensor measurement
Degree, acquires bug dust concentration by conversion.
In conclusion the Dust Testing Instrument small volume, is convenient for carrying；Convenient for folding and it is convenient for disassembly and assembly；It can be direct
At installation to chimney outlet or detection, prevent other gases from entering interference detection results；Scattering formula by light can be improved survey
Try precision and test accuracy.
Claims (6)
1. a kind of dust concentration detector, which is characterized in that the instrument includes pedestal, positive eight side column (2), eyeglass (3), small eyeglass
(4), perspective board (6), circuit board (7) and sleeve (8)；The pedestal includes ring flange (101), shell (102), detection inner ring
(103), air inlet inner ring (104) and air outlet adapter (105)；Ring flange through-hole (1011) are arranged in the middle part of ring flange (101), flange
The outer ring of disk (101) is circumferentially provided with multiple connecting holes；The shell (102) is arranged in the rear portion of ring flange (101), shell
(102) exhaust through hole (1022) are arranged in lower part；The air outlet adapter (105) is arranged on exhaust through hole (1022), shell
(102) the inner ring matching hole (1021) with inner ring cooperation, the detection inner ring (103), air inlet inner ring (104) point are provided on
Racetrack through-hole (1041) She Zhi not be provided in the middle part of the air inlet inner ring (104) in inner ring matching hole；The detection
Inner ring (103) is annular in shape, and the rear portion for detecting inner ring is connected with positive eight side column (2) front；It is set on the left of positive eight side column (2)
It sets hinged by articulated slab (26) and shell (102)；The right part setting of positive eight side column (2) passes through opening-closing lock (27) and shell
(102) it connects；It is provided with annular groove (21) on before positive eight side column (2), the annular groove is provided with Jing Quan on (21)
(211), the eyeglass (3) is arranged on Jing Quan (211), and the middle downside of positive eight side column (2) is provided with camera lens circular hole (22), institute
Rear portion of small eyeglass (4) setting stated in camera lens circular hole (22)；The middle upside of positive eight side column (2) is provided with lightening hole (23)；Institute
Perspective board (6) setting stated is provided on the rear portion of positive eight side column (2), perspective board (6) to match with camera lens circular hole (22)
Sight vane (61) is provided with light-emitting block (63) on perspective board (6) by engagement plate (62), the setting of the light-emitting block (63) front
Have light emitting source (631), light emitting source (631) matches with the lightening hole (23)；The circuit board (7) is arranged in perspective board
(6) rear portion, downside is provided with minimum eyeglass (71) in the front of circuit board (7)；The rear portion of circuit board (7) is provided with scattering light
Intensity sensor；The rear portion of the sleeve (8) and positive eight side column (2) is connected through a screw thread and perspective board (6) and circuit board (7)
It is arranged in sleeve (8)；The rear portion of sleeve (8) is provided with friction striped.
2. a kind of dust concentration detector according to claim 1, which is characterized in that the top of positive eight side column (2)
Portion is provided with regulating tank (24), is provided with adjusting component in the regulating tank (24)；The adjusting component includes camera lens tune
It saves stick (51), glass bar fixed bolt (52), glass bar (53) and adjusts valve fitment (54)；The camera adjusting stick (51)
Lower part is provided with longitudinal glass bar slot；The glass bar fixed bolt (52) and glass bar (53) is separately positioned on glass bar
The top of slot and the lower part of glass bar slot；Glass is additionally provided between the glass bar (53) and glass bar fixed bolt (52)
The fixed small stud (521) of stick；The top of camera adjusting stick (51) is provided with lateral spring groove (512), the spring groove
(512) it is provided with spring (5121) in, the top in positive eight side column (2) and camera adjusting is arranged in the adjusting valve fitment (54)
The top setting of stick (51) is being adjusted in valve fitment (54)；It adjusts valve fitment (54) and is provided with and match with spring groove (512)
Spring matching hole (541), and steel column (542) are respectively arranged between spring groove (512) two sides and spring matching hole (541)；Institute
It is additionally provided at the top of the adjusting valve fitment (54) stated and adjusts sleeve (55).
3. a kind of dust concentration detector according to claim 1, which is characterized in that the ring flange (101) is in circle
Pie, shell (102) are in positive eight side columns shape；The air outlet adapter (105) is in hollow cylindric；The detection inner ring
(103) thickness is greater than the thickness of air inlet inner ring (104).
4. a kind of dust concentration detector according to claim 1, which is characterized in that positive eight side column (2) is just
The upper left quarter of eight side columns (2) is provided with plug (28).
5. a kind of dust concentration detector according to claim 1, which is characterized in that be arranged on the circuit board (7)
There are 3 guide posts (72), 3 guide posts (72) are distributed in three points of equilateral triangle, and the rear portion of circuit board (7) is additionally provided with circuit board
Sheath (73).
6. a kind of dust concentration detector according to claim 1, which is characterized in that the eyeglass (3) and Jing Quan
(211) eyeglass guard ring (301) are provided between；Small eyeglass shield is provided between the small eyeglass (4) and camera lens circular hole (22)
It encloses (401)；It is provided with mirror between the Jing Quan (211) and base rear portion and encircles for protection (201)；Positive eight side column (2) with
Sleeve gasket (801) are provided between sleeve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910188730.1A CN109765159A (en) | 2019-03-13 | 2019-03-13 | A kind of dust concentration detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910188730.1A CN109765159A (en) | 2019-03-13 | 2019-03-13 | A kind of dust concentration detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109765159A true CN109765159A (en) | 2019-05-17 |
Family
ID=66458933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910188730.1A Pending CN109765159A (en) | 2019-03-13 | 2019-03-13 | A kind of dust concentration detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109765159A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5471299A (en) * | 1992-02-21 | 1995-11-28 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Apparatus and method for the analysis of particle characteristics using monotonically scattered light |
| EP1063512A2 (en) * | 1999-05-04 | 2000-12-27 | Laser Sensor Technology, Inc. | Method and apparatus for particle assessment using multiple scanning beam reflectance |
| CN101290283A (en) * | 2008-06-04 | 2008-10-22 | 太原中绿环保技术有限公司 | Laser back scattering dust-measuring apparatus probe device |
| CN201210132Y (en) * | 2008-06-04 | 2009-03-18 | 太原中绿环保技术有限公司 | Laser back scattering dust measurement instrument |
| CN102854109A (en) * | 2012-07-31 | 2013-01-02 | 安徽皖仪科技股份有限公司 | Novel intelligent sensor for measuring dust concentration by using laser backscattering method |
| CN105352864A (en) * | 2015-11-20 | 2016-02-24 | 广东伟创科技开发有限公司 | On-line dust measuring instrument based on light scattering |
| CN205898620U (en) * | 2016-07-01 | 2017-01-18 | 深圳市量宇科技有限公司 | Light target calibrating device |
| CN206223606U (en) * | 2016-08-25 | 2017-06-06 | 上海泽罗电子科技有限公司 | A kind of miniature PM2.5 sensors |
| CN108827843A (en) * | 2018-06-15 | 2018-11-16 | 华中科技大学 | The mass concentration of stationary source particulate matter and the measuring device of fineness spectrum and method |
-
2019
- 2019-03-13 CN CN201910188730.1A patent/CN109765159A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5471299A (en) * | 1992-02-21 | 1995-11-28 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Apparatus and method for the analysis of particle characteristics using monotonically scattered light |
| EP1063512A2 (en) * | 1999-05-04 | 2000-12-27 | Laser Sensor Technology, Inc. | Method and apparatus for particle assessment using multiple scanning beam reflectance |
| CN101290283A (en) * | 2008-06-04 | 2008-10-22 | 太原中绿环保技术有限公司 | Laser back scattering dust-measuring apparatus probe device |
| CN201210132Y (en) * | 2008-06-04 | 2009-03-18 | 太原中绿环保技术有限公司 | Laser back scattering dust measurement instrument |
| CN102854109A (en) * | 2012-07-31 | 2013-01-02 | 安徽皖仪科技股份有限公司 | Novel intelligent sensor for measuring dust concentration by using laser backscattering method |
| CN105352864A (en) * | 2015-11-20 | 2016-02-24 | 广东伟创科技开发有限公司 | On-line dust measuring instrument based on light scattering |
| CN205898620U (en) * | 2016-07-01 | 2017-01-18 | 深圳市量宇科技有限公司 | Light target calibrating device |
| CN206223606U (en) * | 2016-08-25 | 2017-06-06 | 上海泽罗电子科技有限公司 | A kind of miniature PM2.5 sensors |
| CN108827843A (en) * | 2018-06-15 | 2018-11-16 | 华中科技大学 | The mass concentration of stationary source particulate matter and the measuring device of fineness spectrum and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101201315B (en) | Probe | |
| CN102253012B (en) | Device and method for measuring extinction coefficient of black carbon aerosol | |
| CN105486654B (en) | Adjustable non-dispersive infrared gas sensor based on Meta Materials | |
| NO800630L (en) | DEVICE FOR DETECTING FLUID PARTICLES IN A GAS | |
| CN2426148Y (en) | Infrared sulfur dioxide analysis instrument | |
| CN204346898U (en) | A kind of gas concentration measurement air chamber and use the pick-up unit of this air chamber | |
| CN205749211U (en) | A kind of portable multi-function laser smoke detector | |
| CN109765159A (en) | A kind of dust concentration detector | |
| CN206531776U (en) | A kind of multifunctional ceiling photometric detection module | |
| CN205958454U (en) | Dangerous gas monitoring device that leaks of reflective infrared laser industry of self -adaptation | |
| CN105588810A (en) | Multifunctional atomic spectrometer | |
| CN205786294U (en) | The many gas-detecting devices of multiband | |
| CN109765158A (en) | A kind of light scattering formula dust detector and regulating device | |
| CN107219180A (en) | A kind of portable detection of gas with multiple constituents device | |
| CN103278653B (en) | A kind of ature of coal on-line analysis and analytic system | |
| CN209542378U (en) | A kind of dust detector | |
| CN208833633U (en) | A kind of optical path aggregation infrastructure | |
| CN208888105U (en) | A kind of smoke intensity detection optical system | |
| CN201402258Y (en) | Flame photometric detector | |
| CN208399363U (en) | A kind of width dynamic pressure range measurement gas chamber | |
| CN205580981U (en) | Infrared gas detector air chamber of multi -parameter | |
| US7333204B2 (en) | Method and device for analysing a gas likely to contain particles or suspended aerosols | |
| CN207096105U (en) | A kind of water quality on-line detecting system | |
| CN107340275B (en) | Water quality on-line detection system | |
| CN204758127U (en) | Spectrum calibration system based on monochromator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190517 |
|
| WD01 | Invention patent application deemed withdrawn after publication |