CN1368633A - Automatic collecting system for particle spectrum of submicron aerosol - Google Patents
Automatic collecting system for particle spectrum of submicron aerosol Download PDFInfo
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- CN1368633A CN1368633A CN 01102665 CN01102665A CN1368633A CN 1368633 A CN1368633 A CN 1368633A CN 01102665 CN01102665 CN 01102665 CN 01102665 A CN01102665 A CN 01102665A CN 1368633 A CN1368633 A CN 1368633A
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Abstract
A sub-micron automatic acquisition system of aerosol in particles spectrum subsection includes analyzer of optical counter of aerosol and CPU. The CPU controls the system controller, storage device and display respectively. The said system controller controls the controler, air pump, principal machine and display of analyzer of optical counter of aerosol. The control system is fully autoamtic, and can work continuously for several months, even for several years without need of personnel's monitoring, if power supply is normal. In order to solve the issue of file becoming too large, data is stored in file with its name being changed in period only of one day.
Description
The present invention relates to automated collection systems, particularly automatic collecting system for particle spectrum of submicron aerosol.
Submicron aerosol optical counter analyser is the instrument that U.S. Technical Sourcing Internation produces.It is made up of 3 parts: (1) air pump, (2) main frame, (3) controller.Air pump and main frame by gas circuit link, main frame and controller link by electric signal.Its function is to measure aerocolloidal concentration in the atmosphere.Measurement range is from the content of 0.0032 micron～1 micron particle.In this scope, divide 10 shelves again promptly: 0.0032,0.0056,0.010,0.0176,0.032,0.056,0.10,0.176,0.32,0.56,1, their unit is a micron, the concentration of every grade of different particle diameters of representative.
Submicron aerosol optical counter analyser also provides particle concentration, surface area except that the total amount that whole range scale is provided, and the volume of each range scale.
Can determine the size of particle according to the light scattering ability of particle, and the particle of different scale can be counted respectively.All scattering is from the light of light source independently owing to each particle, and scattered intensity is relevant with particle size.Scattered light can be directed to electro-optical detector by coalescence by light-conducting system.Each particle scattering light produces a photodetector output pulse.Pulse strength reaction particle size, pulse number is represented number of particles.But in fact we can not each pulse of measurements and calculations, and pulse strength can only be divided into some levels, makes it corresponding particle size scope, and the pulse number in each rank is represented the total number of particles of this range scale.
At first, submicron aerosol optical counter analyser is extracted into the outdoor gas that will analyze in the reaction chamber of main frame inside by air pump.Instrument produces high pressure by the high-voltage power supply of controller main control system inside, and the reaction indoor gas is carried out effluve.Measure the different-diameter particle and then produce different high pressure.The discharge back receives a Weak current by receiver, passes to amplifier again, and signal is amplified.Signal after the amplification is passed to display.Display shows the analog quantity of the particle concentration that is transmitted by amplifier on the one hand, behind the analog to digital converter of analog quantity via controller inside, be converted to digital quantity after, show the concentration of particle again by display.Then receive controller on the other hand in the control high-voltage power supply, it is exactly the particle signal of corresponding certain passage that diameter that will show that a signal that spreads out of is given display, this signal.11 control lamps are arranged on the controller, and each lamp is represented the concentration of the total number of particles of different scale scope.As environmental monitoring, we needed 24 hours can take in aerocolloidal data, if but instrument 24 continuous throughout the twenty-four hour24s, then the life-span of instrument will seriously reduce, and need many people to observe in shifts in 24 hours, make the data record, gasoloid changes slower in general, integral point number as variation every day of analysing particulates thing is just passable, therefore more accurate for finishing human-saving with record, we need make an automatic control system, and to instrument fix a point start reset operation, peek, and fixed point is shut down.
The purpose of this invention is to provide a kind of control system of control gasoloid optical counter analyser of operation, peek and fixed point shutdown of resetting of fixing a point to start shooting.
Principal feature of the present invention is to comprise gasoloid optical counter analyser, also comprise CPU, described CPU is control system controller, storer and display respectively, and described system controller is controlled the controller of gasoloid optical counter analyser and air pump, main frame, display respectively.
After control system operation was used, as long as it calculated under the situation of not cutting off the power supply, and can not choose in the continuous working of some months or several years and manage, all robotizations, and,, be changed to another filename automatically by second day with one day filename storage data for solving the file problems of too.
Fig. 1 is the synoptic diagram of gasoloid optical counter analyser.
Fig. 2 is the synoptic diagram of gasoloid optical counter analyser and control system.
Fig. 3 is the synoptic diagram of system controller.
At first we do one the cover control system comprise software and hardware, hardware comprises controller, the power switch of its major control analytical instrument air pump, main frame, display, control the He Dinghang that resets of gasoloid optical counter analyser analyser in addition, monitor the control lamp of gasoloid optical counter analyser analyser so again, when the control lamp is bright, read aerosol concentration, and it deposited in the storer, now above function is made a presentation:
1) CPU is a central processing unit, major control, controller, storer and display and clock system, it will handle various situations together with software, the real clock system that monitors oneself when at first it is wanted, whenever sending work order to controller, send to controller to 10 timesharing and to close gasoloid optical counter analyser analytical instrument power supply to 55 timesharing.So like this until did above work in next 55 minutes again.
2) controller: after controller received the central processing unit order, it just took turns doing following work: air pump, main frame and the controller power source of a) opening gasoloid optical counter analyser analyser; B) then the control of gasoloid optical counter analyser analyser is resetted and action command; C) after the initialization, then monitor the control signal of the high-voltage power supply of gasoloid optical counter analyser controller, when the Communication Control lamp such as monitoring when bright, the amplified analog signal of then reading on the gasoloid optical counter analyser analyser of carrying out is noted, and accomplishes 10 minutes behind the integral point always.At this moment controller receives that CPU sends closes the instrument order, and controller is closing controller, main frame and air pump electric current successively.
3) storer: it receives the logical gentle colloidal sol value of signal of time that cpu central processing unit sends.
4) display: the data that main display-memory is noted, so that whether the observation personnel are normally relatively more directly perceived in inspection apparatus.
Described system controller mainly is made up of 5 parts:
1) cpu signal receiver; 2) power-supply controller of electric; 3) 3030 analyser signal controllers; 4) the state receiver of 3030 analysers control; 5) A/D converter.
The cpu signal receiver mainly is responsible for receiving the order of sending of central processor CPU and spreading out of order.
Power-supply controller of electric: when receiving the power supply of switch 3030 analyser air pumps, main frame and controller that the cpu signal receiver sends, starting control power switch.
Signal controller: after receiving the control command that the cpu signal receiver sends, then 3030 analyser controllers are resetted and action command, then 3030 analysers then carry out data acquisition.
State receiver: after the channel controller lamp on 3030 controllers is bright, send a control signal and give the cpu signal receiver, after the cpu signal receiver is received signal, send a signal to central processor CPU, central processor CPU just can read data like this.A/D
Converter: receive the signal of 4 state controllers as central processing unit CPU after, then pass on the aerosol concentration value that parallel operation is read 3030 analysers by A/D, and it is carried out analog quantity transfer data volume to, and it is delivered in the storer by central processing unit, the aerosol concentration value is preserved, prepare against with post analysis.
Claims (2)
1. automatic collecting system for particle spectrum of submicron aerosol, comprise gasoloid optical counter analyser, it is characterized in that comprising CPU, described CPU is control system controller, storer and display respectively, and described system controller is controlled the controller of gasoloid optical counter analyser and air pump, main frame, display respectively.
2. by the described acquisition system of claim 1, it is characterized in that described system controller comprises the cpu signal receiver by CPU control, institute counts the cpu signal controller and receives the order of central processor CPU transmission and spread out of order; The cpu signal receiver is control analysis instrument air pump and controller respectively, the switch of start-up control power supply; Be connected signal controller between cpu signal receiver and the analyser controller and the analyser controller is sent reset and action command, analyser begins data acquisition; State receives controller and is connected between cpu signal receiver and the analyser controller, is used to control central processing unit and reads signal; A/D converter is connected between analyser controller and the central processor CPU, and the aerosol concentration value that is used for analyser is read is converted into digital quantity.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB011026650A CN1151369C (en) | 2001-02-07 | 2001-02-07 | Automatic collecting system for particle spectrum of submicron aerosol |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011026650A CN1151369C (en) | 2001-02-07 | 2001-02-07 | Automatic collecting system for particle spectrum of submicron aerosol |
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| CN1368633A true CN1368633A (en) | 2002-09-11 |
| CN1151369C CN1151369C (en) | 2004-05-26 |
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| CNB011026650A Expired - Fee Related CN1151369C (en) | 2001-02-07 | 2001-02-07 | Automatic collecting system for particle spectrum of submicron aerosol |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173886B (en) * | 2006-11-03 | 2010-05-12 | 中国科学院安徽光学精密机械研究所 | Aerosol particle double channel laser detector and detecting method thereof |
| CN103105350A (en) * | 2013-01-23 | 2013-05-15 | 清华大学 | 3 nanometer-20 micrometer aerosol particle size distribution measuring apparatus |
| CN104034363A (en) * | 2014-06-10 | 2014-09-10 | 上海理工大学 | Cleaning room self-cleaning time testing instrument and testing method thereof |
| WO2015180227A1 (en) * | 2014-05-28 | 2015-12-03 | 南京大学 | Multichannel aerosol scattering-absorbing measuring instrument |
| CN112817028A (en) * | 2020-12-29 | 2021-05-18 | 上海工物高技术产业发展有限公司 | Multichannel analyzer zero clearing method, device and system and storage medium |
| CN113686743A (en) * | 2021-08-19 | 2021-11-23 | 天津大学 | On-line monitoring and analyzing device for atmospheric aerosol |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900666B (en) * | 2009-06-05 | 2012-04-11 | 中国科学院海洋研究所 | Sample detecting circulating water device with planktonic animal optical counting function |
-
2001
- 2001-02-07 CN CNB011026650A patent/CN1151369C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173886B (en) * | 2006-11-03 | 2010-05-12 | 中国科学院安徽光学精密机械研究所 | Aerosol particle double channel laser detector and detecting method thereof |
| CN103105350A (en) * | 2013-01-23 | 2013-05-15 | 清华大学 | 3 nanometer-20 micrometer aerosol particle size distribution measuring apparatus |
| CN103105350B (en) * | 2013-01-23 | 2016-03-16 | 清华大学 | 3nm-20 μm of gasoloid particle diameter distribution measuring apparatus |
| WO2015180227A1 (en) * | 2014-05-28 | 2015-12-03 | 南京大学 | Multichannel aerosol scattering-absorbing measuring instrument |
| US9772278B2 (en) | 2014-05-28 | 2017-09-26 | Nanjing University | Multi-channel aerosol scattering absorption measuring instrument |
| CN104034363A (en) * | 2014-06-10 | 2014-09-10 | 上海理工大学 | Cleaning room self-cleaning time testing instrument and testing method thereof |
| CN112817028A (en) * | 2020-12-29 | 2021-05-18 | 上海工物高技术产业发展有限公司 | Multichannel analyzer zero clearing method, device and system and storage medium |
| CN112817028B (en) * | 2020-12-29 | 2024-02-13 | 上海工物高技术产业发展有限公司 | Multichannel analyzer resetting method, multichannel analyzer resetting device, multichannel analyzer resetting system and storage medium |
| CN113686743A (en) * | 2021-08-19 | 2021-11-23 | 天津大学 | On-line monitoring and analyzing device for atmospheric aerosol |
| CN113686743B (en) * | 2021-08-19 | 2022-08-02 | 天津大学 | On-line monitoring and analyzing device for atmospheric aerosol |
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| Publication number | Publication date |
|---|---|
| CN1151369C (en) | 2004-05-26 |
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