CN107132165A - The measuring method and device of a kind of bug dust concentration value - Google Patents
The measuring method and device of a kind of bug dust concentration value Download PDFInfo
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- CN107132165A CN107132165A CN201710407892.0A CN201710407892A CN107132165A CN 107132165 A CN107132165 A CN 107132165A CN 201710407892 A CN201710407892 A CN 201710407892A CN 107132165 A CN107132165 A CN 107132165A
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- 239000000428 dust Substances 0.000 title claims abstract description 133
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000002245 particle Substances 0.000 claims abstract description 43
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 238000000149 argon plasma sintering Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 22
- 230000006872 improvement Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 239000013618 particulate matter Substances 0.000 description 4
- BYACHAOCSIPLCM-UHFFFAOYSA-N 2-[2-[bis(2-hydroxyethyl)amino]ethyl-(2-hydroxyethyl)amino]ethanol Chemical compound OCCN(CCO)CCN(CCO)CCO BYACHAOCSIPLCM-UHFFFAOYSA-N 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000009182 swimming Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/075—Investigating concentration of particle suspensions by optical means
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention relates to environment measuring equipment technical field, the measuring method and device of more particularly to a kind of bug dust concentration value.A kind of measuring method of bug dust concentration value, including：C is obtained using at least one dust investigating1、C2、……、Cn, n is the natural number more than or equal to 2, wherein, CnIt is equal to Φ for particle size valuesnDust CPM values, and Φ1＞ Φ2＞ ... ＞ Φn；Obtain and C1、C2、……、CnThe corresponding K of difference1、K2、……、Kn, wherein, KnIt is equal to Φ for particle size valuesnDust mass concentration conversion coefficient；Judge whether to meet C1≥C2≥……≥CnIf meeting, show that particle size values are equal to Φ using computing device1Dust mass concentration value M, M=C1*K1- C2*K1+C2*K2- ...-Cn*Kn‑1+Cn*Kn.Embodiment of the present invention in terms of existing technologies, can obtain more accurate bug dust concentration value.
Description
Technical field
The present invention relates to environment measuring equipment technical field, the measuring method of more particularly to a kind of bug dust concentration value and
Device.
Background technology
In the environment measuring processes such as road dust, construction site dust, industrial process dust, bug dust concentration value is
Very important detection data.
In the prior art, it is obtained by bug dust concentration value：To measure bug dust concentration of the particle size values as Φ
Exemplified by value, the CPM for the dust that particle size values are Φ is detected first with a dust instrument, CPM is Counts per minute letter
Write, mean count value per minute, it may also be said to be dust instrument measured concentration values per minute, the numerical value is not by be measured
What the characteristic of dust was determined, but the relative concentration obtained by the characteristic of dust instrument, therefore, after CPM is obtained, in addition it is also necessary to add
COEFFICIENT K, K represents the conversion coefficient between CPM and bug dust concentration value, defines the bug dust concentration value that particle size values are equal to Φ
For MΦ(mg/m3), MΦ=CPMΦ*KΦ。
It was found by the inventors of the present invention that the bug dust concentration value drawn with metering system of the prior art is present necessarily
Error, in simple terms, utilizes formula MΦ=CPMΦ*KΦWhen measuring the dust of greater particle size value, compared with small particle value in air
Dust can be amplified by K values, cause the bug dust concentration value measured more bigger than actual bug dust concentration value.
The content of the invention
The purpose of embodiment of the present invention is the measuring method and device for providing a kind of bug dust concentration value, can obtain
To more accurate bug dust concentration value.
In order to solve the above technical problems, embodiments of the present invention provide a kind of measurement side of bug dust concentration value
Method, including：
C is obtained using at least one dust investigating1、C2、……、Cn, n is the natural number more than or equal to 2, wherein,
CnIt is equal to Φ for particle size valuesnDust CPM values, and Φ1＞ Φ2＞ ... ＞ Φn；
Obtain and C1、C2、……、CnThe corresponding K of difference1、K2、……、Kn, wherein, KnIt is equal to Φ for particle size valuesnDust
Mass concentration conversion coefficient；
Judge whether to meet C1≥C2≥……≥Cn；
If meeting, show that particle size values are equal to Φ using computing device1Dust mass concentration value M, M=C1*K1-
C2*K1+C2*K2- ...-Cn*Kn-1+Cn*Kn。
Embodiments of the present invention additionally provide a kind of measuring apparatus of bug dust concentration value, including：
At least one dust investigating, for obtaining C1、C2、……、Cn, n is the natural number more than or equal to 2, its
In, CnIt is equal to Φ for particle size valuesnDust CPM values, and Φ1＞ Φ2＞ ... ＞ Φn；
Acquisition module, for acquisition and C1、C2、……、CnThe corresponding K of difference1、K2、……、Kn, wherein, KnFor particle size values
Equal to ΦnDust mass concentration conversion coefficient；
Judge module, for judging whether to meet C1≥C2≥……≥Cn；
Computing module, for showing that particle size values are equal to Φ1Dust mass concentration value M, M=C1*K1- C2*K1+C2*
K2- ...-Cn*Kn-1+Cn*Kn。
Embodiment of the present invention in terms of existing technologies, can obtain more accurate bug dust concentration value.Lift
For example, PM is measured with metering system of the prior art10Mass concentration value when, its formula is：M10=C10*K10, wherein,
M10For PM10Mass concentration value, K10For measurement PM10When K values, C10For measurement PM10When CPM values；
Likewise, in measurement PM2.5Mass concentration value when, its formula is：M2.5=C2.5*K2.5, wherein, M2.5For PM2.5
Mass concentration value, K2.5For measurement PM2.5When K values, C2.5For measurement PM2.5When CPM values；
It is understood that after above-mentioned formula is merged into decomposition：
M10=C10*K10=(C2.5+C2.5~10)*K10=C2.5*K10+C2.5~10*K10,
Problem is, actual in measurement PM10When, the particle size range for the particulate matter that can enter dust instrument measuring chamber is 0~10
Micron, wherein PM2.5It is also included within wherein.Due to the particle diameter reason of particulate matter, K2.5 is, i.e. K smaller than K10 certainly2.5<
K10, so C2.5*K10>M2.5=C2.5*K2.5, cause above-mentioned error.
And embodiment of the present invention, by subtracting amplifier section C2.5*K10, supplement substantial portion C2.5*K2.5So that measurement
Obtained bug dust concentration value is closer actual.
In addition, in the measuring method of the bug dust concentration value, judging whether to meet C1≥C2≥……≥CnBefore,
Also include：
Judge whether to meet C1≤C2≤……≤Cn；
If meeting, show that particle size values are equal to Φ using computing device1Dust mass concentration value M, M=Cn*Kn, with
Avoid measurement result from inversion phenomenon occur, further improve measuring accuracy.
In addition, in the measuring method of the bug dust concentration value, as n=3, judging whether to meet C1≥C2≥……
≥CnBefore, in addition to：
Judge whether to meet C1≤C2, and C2≥C3；
If meeting, show that particle size values are equal to Φ using computing device1Dust mass concentration value M, M=C2*K2-
C3*K2+C3*K3, to avoid measurement result from part inversion phenomenon occur, further improve measuring accuracy.
In addition, in the measuring method of the bug dust concentration value, as n=3, judging whether to meet C1≥C2≥……
≥CnBefore, in addition to：
Judge whether to meet C1≤C2, and C2≤C3；
If meeting, show that particle size values are equal to Φ using computing device1Dust mass concentration value M, M=C3*K3, with
Avoid measurement result from inversion phenomenon occur, further improve measuring accuracy.
In addition, in the measuring method of the bug dust concentration value, dust investigating is light scattering dust instrument.
In addition, in the measuring apparatus of the bug dust concentration value, dust investigating is light scattering dust instrument.
In addition, in the measuring apparatus of the bug dust concentration value, the quantity of dust investigating is n, and each
Dust investigating is used to obtain corresponding C simultaneouslyn, to utilize error present in the detection of single dust investigating.
In addition, in the measuring apparatus of the bug dust concentration value, the quantity of dust investigating is one, and dust
Detection means periodically obtains C1、C2、……、Cn, to avoid utilizing error present in the detection of multiple dust investigatings.
Brief description of the drawings
Fig. 1 is the flow chart of the measuring method of the bug dust concentration value in first embodiment of the invention；
Fig. 2 is the flow chart of the measuring method of the bug dust concentration value in second embodiment of the invention；
Fig. 3 is the flow chart of the measuring method of the bug dust concentration value in third embodiment of the invention；
Fig. 4 is the flow chart of the measuring method of the bug dust concentration value in four embodiment of the invention；
Fig. 5 is the structural representation of the measuring apparatus of the bug dust concentration value in fifth embodiment of the invention；
Fig. 6 is the structural representation of the measuring apparatus of the bug dust concentration value in sixth embodiment of the invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with each reality of the accompanying drawing to the present invention
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the invention,
In order that reader more fully understands the application and proposes many ins and outs.But, even if without these ins and outs and base
Many variations and modification in following embodiment, can also realize the application technical scheme claimed.
The first embodiment of the present invention is related to a kind of measuring method of bug dust concentration value, as shown in figure 1, including：
101. obtain C using at least one dust investigating1、C2、……、Cn, n is the natural number more than or equal to 2,
Wherein, CnIt is equal to Φ for particle size valuesnDust CPM values, and Φ1＞ Φ2＞ ... ＞ Φn；Wherein, the dust investigating
For light scattering dust instrument, the principle of light scattering dust instrument approximately as：LASER Light Source is radiated at swimming in firm discharge air
On particle, particle will send light at random, and the reflected mirror convergence of scattered light of various concentrations is received by photodiode, production
Raw luminous intensity at random is converted to electric signal, using the light at random intensity and dust concentration into relative scale principle be that can be achieved
The test for dust concentration of swimming；
102. obtain and above-mentioned C1、C2、……、CnThe corresponding K of difference1、K2、……、Kn, wherein, KnIt is equal to for particle size values
ΦnDust mass concentration conversion coefficient；
103. judge whether to meet C1≥C2≥……≥Cn；
If 104. meeting, showing that particle size values are equal to Φ using computing device1Dust mass concentration value M, M=C1*
K1- C2*K1+C2*K2- ...-Cn*Kn-1+Cn*Kn。
By the above it is seen that, the measuring method for the bug dust concentration value that present embodiment is provided can be with
Obtain more accurate bug dust concentration value.For example, PM is measured with metering system of the prior art10Mass concentration
During value, its formula is：M10=C10*K10, wherein, M10For PM10Mass concentration value, K10For measurement PM10When K values, C10To survey
Measure PM10When CPM values；
Likewise, in measurement PM2.5Mass concentration value when, its formula is：M2.5=C2.5*K2.5, wherein, M2.5For PM2.5
Mass concentration value, K2.5For measurement PM2.5When K values, C2.5For measurement PM2.5When CPM values；
It is understood that after above-mentioned formula is merged into decomposition：
M10=C10*K10=(C2.5+C2.5~10)*K10=C2.5*K10+C2.5~10*K10,
Problem is, actual in measurement PM10When, the particle size range for the particulate matter that can enter dust instrument measuring chamber is 0~10
Micron, wherein PM2.5It is also included within wherein.Due to the particle diameter reason of particulate matter, K2.5 is, i.e. K smaller than K10 certainly2.5<
K10, so C2.5*K10>M2.5=C2.5*K2.5, cause above-mentioned error.
And embodiment of the present invention, by subtracting amplifier section C2.5*K10, supplement substantial portion C2.5*K2.5So that measurement
Obtained bug dust concentration value is closer actual.
The step of various methods are divided above, be intended merely to description it is clear, can be merged into when realizing a step or
Some steps are split, multiple steps are decomposed into, as long as including identical logical relation, all protection domain in this patent
It is interior；To adding inessential modification in algorithm or in flow or introducing inessential design, but its algorithm is not changed
Core design with flow is all in the protection domain of the patent.
It will be appreciated by those skilled in the art that realizing that all or part of step in above-described embodiment method can be by
Program instructs the hardware of correlation to complete, and the program storage is in a storage medium, including some instructions are to cause one
Individual equipment (can be single-chip microcomputer, chip etc.) or processor (processor) perform each embodiment methods described of the application
All or part of step.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
Second embodiment of the present invention is related to a kind of measuring method of bug dust concentration value.Second embodiment is pair
The improvement of first embodiment, is mainly theed improvement is that：In the measuring method of the bug dust concentration value of present embodiment, such as
Shown in Fig. 2, judging whether to meet C1≥C2≥……≥CnBefore, in addition to：
105. judge whether to meet C1≤C2≤……≤Cn,
If 106. meeting, showing that particle size values are equal to Φ using computing device1Dust mass concentration value M, M=Cn*
Kn, to avoid measurement result from inversion phenomenon occur, further improve measuring accuracy.
For example, as n=2, showing that particle size values are equal to Φ using computing device1Dust mass concentration value M before,
Also include：
Judge whether to meet C1≤C2；
If meeting, M=C2*K2, with avoid measurement result occur inversion phenomenon, i.e. smaller particle concentration on the contrary be more than compared with
The situation of bulky grain concentration, further improves measuring accuracy.
Third embodiment of the present invention is related to a kind of measuring method of bug dust concentration value.3rd embodiment is pair
The improvement of first embodiment, is mainly theed improvement is that：In the measuring method of the bug dust concentration value of present embodiment, such as
Shown in Fig. 3, as n=3, judging whether to meet C1≥C2≥……≥CnBefore, in addition to：
107. judge whether to meet C1≤C2, and C2≥C3；
If 108. meeting, showing that particle size values are equal to Φ using computing device1Dust mass concentration value M, M=C2*
K2- C3*K2+C3*K3, to avoid measurement result from part inversion phenomenon occur, further improve measuring accuracy.
The 4th embodiment of the present invention is related to a kind of measuring method of bug dust concentration value.4th embodiment is pair
The improvement of first embodiment, is mainly theed improvement is that：As shown in figure 4, judging whether to meet C1≥C2≥……≥CnIt
Before, in addition to：
109. judge whether to meet C1≤C2, and C2≤C3；
If 110. meeting, showing that particle size values are equal to Φ using computing device1Dust mass concentration value M, M=C3*
K3, to avoid measurement result from inversion phenomenon occur, further improve measuring accuracy.
Fifth embodiment of the invention is corresponding with first embodiment, is related to a kind of measurement of bug dust concentration value and sets
It is standby, as shown in figure 5, including：
At least one dust investigating 1, for obtaining C1、C2、……、Cn, n is the natural number more than or equal to 2, its
In, CnIt is equal to Φ for particle size valuesnDust CPM values, and Φ1＞ Φ2＞ ... ＞ Φn；The dust investigating dissipates for light
Penetrate dust instrument；
Acquisition module 2, for obtaining and above-mentioned C1、C2、……、CnThe corresponding K of difference1、K2、……、Kn, wherein, KnFor
Particle size values are equal to ΦnDust mass concentration conversion coefficient；
Judge module 3, for judging whether to meet C1≥C2≥……≥Cn；
Computing module 4, for showing that particle size values are equal to Φ1Dust mass concentration value M, M=C1*K1- C2*K1+C2*
K2- ...-Cn*Kn-1+Cn*Kn。
It is noted that each module involved in present embodiment is logic module, and in actual applications, one
Individual logic unit can be a part for a physical location or a physical location, can also be with multiple physics lists
The combination of member is realized.In addition, will not be with solving institute of the present invention in the innovative part in order to protrude the present invention, present embodiment
The technical problem relation of proposition less close unit is introduced, but this be not intended that in present embodiment be not present it is other single
Member.
It should be noted that in the measuring apparatus of the bug dust concentration value, the quantity of dust investigating is n,
And each dust investigating is used to obtain corresponding C simultaneouslyn., can be to surrounding if starting each dust investigating simultaneously
Air measure simultaneously, reduce because of the error that air is different and produces.
Sixth embodiment of the invention is related to a kind of measuring apparatus of bug dust concentration value.6th embodiment and the 5th
Embodiment is roughly the same, is in place of the main distinction：In the 5th embodiment, the quantity of dust investigating is n.And
In sixth embodiment of the invention, as shown in fig. 6, the quantity of dust investigating 1 is one, and the dust investigating
Periodically obtain C1、C2、……、Cn.In present embodiment, there are dust investigating n to be used to detect CnTest window,
By opening test window with controlling magnetic valve property performance period, for example, realized by magnetic valve and first survey C1One minute, then survey C2One
Minute ..., then survey CnOne minute, then survey C1One minute, so circulation.It is many with utilizing due to dust investigating only one of which
Individual dust investigating is compared, and can avoid detection error present in each dust investigating.
Certain those skilled in the art can be combined with the 5th embodiment and the 6th embodiment, distinguish multiple dust inspections
The action of device is surveyed, to realize technique effect that first embodiment is reached, this kind of mode should also fall into the present invention's
Protection domain.
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific embodiment of the present invention,
And in actual applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (9)
1. a kind of measuring method of bug dust concentration value, it is characterised in that including：
C is obtained using at least one dust investigating1、C2、……、Cn, n is the natural number more than or equal to 2, wherein, CnFor
Particle size values are equal to ΦnDust CPM values, and Φ1＞ Φ2＞ ... ＞ Φn；
Obtain and the C1、C2、……、CnThe corresponding K of difference1、K2、……、Kn, wherein, KnIt is equal to Φ for particle size valuesnDust
Mass concentration conversion coefficient；
Judge whether to meet C1≥C2≥……≥Cn；
If meeting, show that particle size values are equal to Φ using computing device1Dust mass concentration value M, M=C1*K1- C2*K1+
C2*K2- ...-Cn*Kn-1+Cn*Kn。
2. the measuring method of bug dust concentration value according to claim 1, it is characterised in that judging whether to meet C1
≥C2≥……≥CnBefore, in addition to：
Judge whether to meet C1≤C2≤……≤Cn；
If meeting, show that particle size values are equal to Φ using computing device1Dust mass concentration value M, M=Cn*Kn。
3. the measuring method of bug dust concentration value according to claim 1, it is characterised in that as n=3, is judging
Whether C is met1≥C2≥……≥CnBefore, in addition to：
Judge whether to meet C1≤C2, and C2≥C3；
If meeting, show that particle size values are equal to Φ using computing device1Dust mass concentration value M, M=C2*K2- C3*K2+
C3*K3。
4. the measuring method of bug dust concentration value according to claim 1, it is characterised in that as n=3, is sentencing
It is disconnected whether to meet C1≥C2≥……≥CnBefore, in addition to：
Judge whether to meet C1≤C2, and C2≤C3；
If meeting, show that particle size values are equal to Φ using computing device1Dust mass concentration value M, M=C3*K3。
5. the measuring method of bug dust concentration value according to claim 1, it is characterised in that the dust investigating
For light scattering dust instrument.
6. a kind of measuring apparatus of bug dust concentration value, it is characterised in that including：
At least one dust investigating, for obtaining C1、C2、……、Cn, n is the natural number more than or equal to 2, wherein, CnFor
Particle size values are equal to ΦnDust CPM values, and Φ1＞ Φ2＞ ... ＞ Φn；
Acquisition module, for obtaining and the C1、C2、……、CnThe corresponding K of difference1、K2、……、Kn, wherein, KnFor particle size values
Equal to ΦnDust mass concentration conversion coefficient；
Judge module, for judging whether to meet C1≥C2≥……≥Cn；
Computing module, for showing that particle size values are equal to Φ1Dust mass concentration value M, M=C1*K1- C2*K1+C2*
K2- ...-Cn*Kn-1+Cn*Kn。
7. the measuring apparatus of bug dust concentration value according to claim 6, it is characterised in that the dust investigating
For light scattering dust instrument.
8. the measuring apparatus of bug dust concentration value according to claim 6, it is characterised in that the dust investigating
Quantity be n, and each dust investigating is used to obtain corresponding C simultaneouslyn。
9. the measuring apparatus of bug dust concentration value according to claim 6, it is characterised in that the dust investigating
Quantity be one, and the dust investigating periodically obtains C1、C2、……、Cn。
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| CN109791101A (en) * | 2018-09-05 | 2019-05-21 | 武汉四方光电科技有限公司 | Method and device that is a kind of while measuring different diameter airborne particle mass concentration |
| WO2020047689A1 (en) * | 2018-09-05 | 2020-03-12 | 武汉四方光电科技有限公司 | Method and apparatus for simultaneously measuring mass concentrations of particulate matter with different particle sizes |
| CN109791101B (en) * | 2018-09-05 | 2020-09-18 | 四方光电股份有限公司 | Method and device for simultaneously measuring mass concentration of particles with different particle diameters |
| KR20210016624A (en) * | 2018-09-05 | 2021-02-16 | 큐빅 센서 앤드 인스트루먼트 컴퍼니 리미티드 | Method and apparatus for simultaneously measuring mass concentration of particulate matter of different particle size |
| US20210123847A1 (en) * | 2018-09-05 | 2021-04-29 | Cubic Sensor and Instrument Co.,Ltd | Method and Device for Simultaneously Measuring Mass Concentrations of Particulates with Different Sizes |
| KR102435967B1 (en) | 2018-09-05 | 2022-08-24 | 큐빅 센서 앤드 인스트루먼트 컴퍼니 리미티드 | Method and apparatus for simultaneously measuring mass concentrations of particulate matter of different particle sizes |
| US11555771B2 (en) * | 2018-09-05 | 2023-01-17 | Cubic Sensor And Instrument Co., Ltd | Method and device for simultaneously measuring mass concentrations of particulates with different sizes |
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