CN201355339Y - Calibration device of automatic atmospheric particulate matter monitoring system - Google Patents
Calibration device of automatic atmospheric particulate matter monitoring system Download PDFInfo
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- CN201355339Y CN201355339Y CNU2008201509979U CN200820150997U CN201355339Y CN 201355339 Y CN201355339 Y CN 201355339Y CN U2008201509979 U CNU2008201509979 U CN U2008201509979U CN 200820150997 U CN200820150997 U CN 200820150997U CN 201355339 Y CN201355339 Y CN 201355339Y
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Abstract
The utility model relates to the technical field of environmental protection measurement and testing, in particular to a calibration device of an automatic atmospheric particulate matter concentration monitoring system (TEOM method) based on the micro-oscillation balance method, which is formed by connecting a data converter (1), an integrated data processor (2), an analog signal generator (3), a frequency counter (4), a standard flow meter A, a standard flow meter B, a standard thermometer, a standard atmospheric pressure gauge, a timer, a power supply and the like as well as a measuring system unit and a control unit of the automatic atmospheric particulate matter concentration monitoring system through electrical signals. Through the calibration of the frequency, flow rate, temperature, atmospheric pressure and time of the mass concentration of particulate matter, the mass concentration of particulate matter is calibrated. The technical key of the device is the data converter and the integrated data processor, thereby achieving the lossless signal acquisition; and the utility model has the characteristics of automatic data processing and printing, novel structure, convenient use, fast measurement, improvement on the accuracy and objectivity of on-line monitoring and the like.
Description
Technical field
The utility model relates to environmental protection, metrological testing technology field, specifically refers to the calibrating installation based on a kind of atmosphere particle concentration automatic monitoring system (TEOM method) of trace vibration sedimentation balance method.
Background technology
Owing on record reason, the air quality of environment for human survival has been subjected to serious destruction.About influence research and the evaluation of Atmospheric particulates to environment, be not only with the health regional environment problem of the public hazards type pollution that is the center, also relevant with great global environment problems such as global warming, acid rain, stratospheric ozone destructions.Therefore, the monitoring about Atmospheric particulates is one of field, forefront in the Study of Atmospheric Environment always.
Usually the monitoring particle concentration has: filter membrane weight method, light scattering method, piezoelectric crystal method, radiation absorption method, trace vibration sedimentation balance method etc.Wherein, trace vibration sedimentation balance method is based on the principle of trace vibration balance, by mechanics principle as can be known, square being inversely proportional to of the quality of object and its natural frequency, when the quality of object changed, corresponding variation also took place in its natural frequency.This method is measured directly, and is irrelevant with particle particle diameter color or the like, and particle do not contact the quartz oscillation pipe and do not need substantially to clean, and is to apply maximum a kind of methods of measuring particle at present.The method of 2008 Olympic Games monitoring particle has also adopted micro-vibration sedimentation balance method.
From over 2003, trace vibration sedimentation balance method is adopted in Shanghai comprehensively, and Atmospheric particulates automatic monitoring systems (TEOM method) are overlapped in more than 50 of configuration in whole city's scope, by measuring particulate in air mass concentration monitoring of environmental pollution level.But particularly on-line automatic environmental monitoring aspect exists: on-line automatic environment supervision instrument lacks standard substance and can not examine and determine/calibrate and not suitable fully vertification regulation/calibration steps; Because mobile, the variation of monitoring target, on-line automatic environment supervision instrument is in continuous long-term work.Because of the existence of these problems, directly influence the accuracy and the objectivity of environmental monitoring data.
Summary of the invention
The purpose of this utility model is to solve the deficiency that above-mentioned prior art exists, and provides and be used for the device calibrated based on the atmosphere particle concentration automatic monitoring system (TEOM method) of trace vibration sedimentation balance method.
This device is based on passing through frequency, flow, temperature, atmospheric pressure, the calibration of the critical index of quality-determining concentration such as time, then reach principle to the calibration of particle quality concentration, the simulating signal that will be produced by analog signal generator is by data converter and aggregation of data processor, and adopt lossless data to gather switch technology signal is taken out, amplify the shaping processing through isolating, input to by the synchronous digital frequency meter of high frequency stabilization rate standard and directly calibrate, do not influencing under Atmospheric particulates automatic monitoring system (TEOM method) normal operation, carry out the online in real time calibration, calibrate particle quality concentration by the mode of calibration frequency signal.
This calibrating installation is connected with the transmission that analog signal generator, frequency counter are made electric signal respectively by data converter as shown in Figure 1, and the transmission of making electric signal with the measuring unit and the control module of Atmospheric particulates automatic monitoring system is connected; The aggregation of data processor is connected with the transmission that frequency counter, proving flowmeter A, proving flowmeter B, standard thermometer, normal atmospheric pressure meter, timer and Atmospheric particulates automatic monitoring system control module are made electric signal respectively, and constitutes with the institute that is connected that power supply unit is made electricity.
Require this calibrating installation can take different connected modes according to calibration program, realize original frequency surveying work and frequency of operation surveying work.
Measure the connected mode of original frequency, be connected with the transmission that frequency counter is made electric signal respectively by data converter, the transmission of making electric signal with the measuring unit and the control module of Atmospheric particulates automatic monitoring system is connected; The aggregation of data processor is connected with the transmission that the control module of frequency counter, proving flowmeter A, proving flowmeter B, standard thermometer, normal atmospheric pressure meter, timer and Atmospheric particulates automatic monitoring system is made electric signal respectively, and constitutes with the institute that is connected that power supply unit is made electricity.
The connected mode of surveying work frequency is connected with the transmission that analog signal generator, frequency counter are made electric signal respectively by data converter, and the transmission of making electric signal with the control module of Atmospheric particulates automatic monitoring system is connected; The aggregation of data processor is connected with the transmission that the control module of frequency counter, proving flowmeter A, proving flowmeter B, standard thermometer, normal atmospheric pressure meter, timer and Atmospheric particulates automatic monitoring system is made electric signal respectively, and constitutes with the institute that is connected that power supply unit is made electricity.
Device also can be used to detect the mass concentration error of indication of atmosphere particle concentration automatic monitoring system (TEOM method) and mass concentration repeatability, mass concentration stability.
Described aggregation of data processor can also directly be printed after traffic alignment data, temperature calibration data and time calibration, data were edited.
Device has novel structure, and is easy to use, measures characteristics such as quick, the accuracy of raising online monitoring data and objectivity.
Description of drawings
Fig. 1 is that the calibrating installation of the utility model Atmospheric particulates automatic monitoring system connects block diagram;
Fig. 2 measures the original frequency state for the utility model calibrating installation and connects block diagram;
Fig. 3 is that the utility model calibrating installation surveying work frequency state connects block diagram;
Fig. 4 measures the original frequency state for this device data converter 1 and connects block diagram;
Fig. 5 connects block diagram for this device data converter 1 surveying work frequency state.
1-data converter among the figure; 2-aggregation of data processor; The 3-analog signal generator; The 4-frequency generator.
Embodiment
In conjunction with the accompanying drawings the utility model is done further following description
The calibrating installation (as shown in Figure 1) of the utility model Atmospheric particulates automatic monitoring system, it comprises:
Require this calibrating installation can take different connected modes according to calibration program, realize original frequency surveying work and frequency of operation surveying work.
Embodiment 1: the connected mode (as shown in Figure 2) of measuring original frequency:
Be connected with the transmission that frequency counter 4 is made electric signal respectively by data converter 1, the transmission of making electric signal with the measuring unit and the control module of Atmospheric particulates automatic monitoring system is connected; Aggregation of data processor 2 is connected with the transmission that the control module of frequency counter 4, proving flowmeter A, proving flowmeter B, standard thermometer, normal atmospheric pressure meter, timer and Atmospheric particulates automatic monitoring system is made electric signal respectively, and constitutes with the institute that is connected that power supply unit is made electricity.
Its described data converter 1 connected mode (as shown in Figure 4):
The isolated amplifier that data converter 1 passes through wherein is with frequency counter 4 being connected with electric signal.
Embodiment 2: the connected mode of surveying work frequency (as shown in Figure 3):
Be connected with the transmission that analog signal generator 3, frequency counter 4 are made electric signal respectively by data converter 1, the transmission of making electric signal with the control module of Atmospheric particulates automatic monitoring system is connected; Aggregation of data processor 2 is connected with the transmission that the control module of frequency counter 4, proving flowmeter A, proving flowmeter B, standard thermometer, normal atmospheric pressure meter, timer and Atmospheric particulates automatic monitoring system is made electric signal respectively, and constitutes with the institute that is connected that power supply unit is made electricity.
Its described data converter 1 connected mode (as shown in Figure 5):
Isolated amplifier by wherein of data converter 1, divider, controller, amplifier, phaser respectively with analog signal generator 3, frequency counter 4 is with the connection of electric signal.
This installs described aggregation of data processor 2, is core cell with CPU, comprises software and has IO interface, connects with the logic of electric signal, and constitutes with the institute that is connected that power supply unit is made electricity.
One of the calibrating installation of Atmospheric particulates automatic monitoring system of the present utility model is concrete
Embodiment:
High impedance input, Low ESR output are adopted in described transmission;
Described data line adopts standard 50 Ω cables and BN joint.
Wherein, device is selected configuration:
Power supply: exchange 50Hz, 220V;
Analog signal generator 3: frequency of operation 20MHz;
Frequency counter 4: frequency of operation 225MHz, the resolution of 10 bps;
Proving flowmeter A: range 0～20L/min, class of accuracy: 1 grade;
Proving flowmeter B: range 0～5L/min, class of accuracy: 1 grade;
Standard thermometer: scope-10～50 ℃, scale division value is not more than 0.1 ℃, and the error of indication is no more than ± and 0.2 ℃;
Normal atmospheric pressure meter: scope 87～105kPa, permissible error ± 100Pa;
Timer: resolution is not more than 0.1s, and error of indication 24h is better than 1s.
The calibrating installation of Atmospheric particulates automatic monitoring system of the present utility model (TEOM method), calibration is applicable to granular mass scope: 0～100mg/m
3
In sum, this device has novel, cleverly simulating signal is not being influenced under Atmospheric particulates automatic monitoring system (TEOM method) normal operation by means such as data converter and aggregation of data processor, analog signal generators, carrying out the online in real time calibration.Calibrate particle quality concentration by the mode of calibration frequency signal.
And possessing automatic data processing and printing function, this device has novel structure, and is easy to use, measures characteristics such as quick, monitoring degree of accuracy height.This apparatus structure is tight, external form is small and exquisite, to be easy to carry be the design that aims at on-line calibration service, has very big Practical significance.
Claims (5)
1, a kind of calibrating installation of Atmospheric particulates automatic monitoring system, it is characterized in that, measuring under the original frequency state, by data converter (1) respectively with frequency counter (4), the measuring unit of Atmospheric particulates automatic monitoring system is connected with the transmission that control module is made electric signal; Aggregation of data processor (2) respectively with frequency counter (4), the transmission that the control module of proving flowmeter A, proving flowmeter B, standard thermometer, normal atmospheric pressure meter, timer and Atmospheric particulates automatic monitoring system is made electric signal connects; And constitute with the institute that is connected that power supply unit is made electricity;
Under the surveying work frequency state, by data converter (1) respectively with frequency counter (4), analog signal generator (3), the transmission of making electric signal with the control module of Atmospheric particulates automatic monitoring system is connected; Aggregation of data processor (2) respectively with frequency counter (4), the transmission that the control module of proving flowmeter A, proving flowmeter B, standard thermometer, normal atmospheric pressure meter, timer and Atmospheric particulates automatic monitoring system is made electric signal connects; And constitute with the institute that is connected that power supply unit is made electricity.
2, the calibrating installation of Atmospheric particulates automatic monitoring system as claimed in claim 1 is characterized in that: measuring under the original frequency state, described data converter (1) passes through isolated amplifier wherein, with frequency counter (4) being connected with electric signal;
Under the surveying work frequency state, described data converter (1), the isolated amplifier by wherein, divider, controller, amplifier, phaser respectively with analog signal generator (3), frequency counter (4) is with the connection of electric signal.
3, the calibrating installation of Atmospheric particulates automatic monitoring system as claimed in claim 1, it is characterized in that: described aggregation of data processor (2), with CPU is core cell, comprise software and have IO interface, logic with electric signal connects, and constitutes with the institute that is connected of power supply unit work electricity.
4, as the calibrating installation of the arbitrary described Atmospheric particulates automatic monitoring system of claim 1-3, it is characterized in that: high impedance input, Low ESR output are adopted in described transmission;
Described data line adopts standard 50 Ω cables and BN joint.
5, as the calibrating installation of the arbitrary described a kind of Atmospheric particulates automatic monitoring system of claim 1-3, it is characterized in that: select configuration as follows
Power supply: exchange 50Hz, 220V;
Analog signal generator (3): frequency of operation 20MHz;
Frequency counter (4): frequency of operation 225MHz, the resolution of 10 bps;
Proving flowmeter A: range 0～20L/min, class of accuracy: 1 grade;
Proving flowmeter B: range 0～5L/min, class of accuracy: 1 grade;
Standard thermometer: scope-10～50 ℃, scale division value is not more than 0.1 ℃, and the error of indication is no more than ± and 0.2 ℃;
Normal atmospheric pressure meter: scope 87～105kPa, permissible error ± 100Pa;
Timer: resolution is not more than 0.1s, and error of indication 24h is better than 1s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201509979U CN201355339Y (en) | 2008-07-18 | 2008-07-18 | Calibration device of automatic atmospheric particulate matter monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201509979U CN201355339Y (en) | 2008-07-18 | 2008-07-18 | Calibration device of automatic atmospheric particulate matter monitoring system |
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| CN201355339Y true CN201355339Y (en) | 2009-12-02 |
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| CNU2008201509979U Expired - Fee Related CN201355339Y (en) | 2008-07-18 | 2008-07-18 | Calibration device of automatic atmospheric particulate matter monitoring system |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221509A (en) * | 2010-10-27 | 2011-10-19 | 武汉市天虹仪表有限责任公司 | Method for compensating measuring concentration of oscillation balance |
| CN103234881A (en) * | 2013-04-09 | 2013-08-07 | 安徽省安光环境光学工程技术研究中心有限公司 | Atmospheric particulate matter monitor |
| CN103547906A (en) * | 2011-02-14 | 2014-01-29 | 杜兰教育基金管委会 | A device and method for monitoring the presence, onset and evolution of particulates in chemically or physically reacting systems |
| CN104075957A (en) * | 2013-03-29 | 2014-10-01 | 天津同阳科技发展有限公司 | Trace particulate matter measuring system based on composite tube oscillation balance and measuring method thereof |
| CN104122180A (en) * | 2014-07-21 | 2014-10-29 | 青岛众瑞智能仪器有限公司 | Method for measuring mass concentration of particulate matter |
| CN104132863A (en) * | 2014-08-15 | 2014-11-05 | 武汉市天虹仪表有限责任公司 | Continuous monitoring device and continuous monitoring method for particulate matters |
| CN104316443A (en) * | 2014-09-30 | 2015-01-28 | 杭州电子科技大学 | PM2.5 concentration monitoring method based on CCD back scattering |
| CN103547906B9 (en) * | 2011-02-14 | 2016-04-06 | 杜兰教育基金管委会 | Apparatus and method for monitoring the presence, onset and evolution of particles in a chemical or physical reaction system |
| CN105527208A (en) * | 2016-01-27 | 2016-04-27 | 北京市环境保护监测中心 | Correction method for mass concentration data of atmospheric particulates |
| CN105572005A (en) * | 2015-12-24 | 2016-05-11 | 浙江省计量科学研究院 | Light-scattering-method-based PM2.5 monitor calibration method and device |
| CN105758768A (en) * | 2016-01-07 | 2016-07-13 | 南京大学（苏州）高新技术研究院 | Characterization method of electroconductive particulate matter (PMd) index measured according to electroconductivity |
| CN106644863A (en) * | 2016-10-27 | 2017-05-10 | 湖北建研测控科技有限公司 | Particulate matter calibration cabin |
| US10571446B2 (en) | 2017-04-27 | 2020-02-25 | International Business Machines Corporation | Data quality control using a correlated sensor group |
-
2008
- 2008-07-18 CN CNU2008201509979U patent/CN201355339Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221509A (en) * | 2010-10-27 | 2011-10-19 | 武汉市天虹仪表有限责任公司 | Method for compensating measuring concentration of oscillation balance |
| CN103547906B (en) * | 2011-02-14 | 2016-02-24 | 杜兰教育基金管委会 | For monitoring the apparatus and method of the existence of particle in chemistry or physical reactions system, beginning and differentiation |
| CN103547906A (en) * | 2011-02-14 | 2014-01-29 | 杜兰教育基金管委会 | A device and method for monitoring the presence, onset and evolution of particulates in chemically or physically reacting systems |
| CN103547906B9 (en) * | 2011-02-14 | 2016-04-06 | 杜兰教育基金管委会 | Apparatus and method for monitoring the presence, onset and evolution of particles in a chemical or physical reaction system |
| CN104075957A (en) * | 2013-03-29 | 2014-10-01 | 天津同阳科技发展有限公司 | Trace particulate matter measuring system based on composite tube oscillation balance and measuring method thereof |
| CN104075957B (en) * | 2013-03-29 | 2017-08-25 | 天津同阳科技发展有限公司 | Micro particulate measurement system and its measuring method based on multiple tube oscillating balance |
| CN103234881A (en) * | 2013-04-09 | 2013-08-07 | 安徽省安光环境光学工程技术研究中心有限公司 | Atmospheric particulate matter monitor |
| CN104122180A (en) * | 2014-07-21 | 2014-10-29 | 青岛众瑞智能仪器有限公司 | Method for measuring mass concentration of particulate matter |
| CN104132863A (en) * | 2014-08-15 | 2014-11-05 | 武汉市天虹仪表有限责任公司 | Continuous monitoring device and continuous monitoring method for particulate matters |
| CN104316443A (en) * | 2014-09-30 | 2015-01-28 | 杭州电子科技大学 | PM2.5 concentration monitoring method based on CCD back scattering |
| CN105572005A (en) * | 2015-12-24 | 2016-05-11 | 浙江省计量科学研究院 | Light-scattering-method-based PM2.5 monitor calibration method and device |
| CN105758768A (en) * | 2016-01-07 | 2016-07-13 | 南京大学（苏州）高新技术研究院 | Characterization method of electroconductive particulate matter (PMd) index measured according to electroconductivity |
| CN105527208A (en) * | 2016-01-27 | 2016-04-27 | 北京市环境保护监测中心 | Correction method for mass concentration data of atmospheric particulates |
| CN106644863A (en) * | 2016-10-27 | 2017-05-10 | 湖北建研测控科技有限公司 | Particulate matter calibration cabin |
| CN106644863B (en) * | 2016-10-27 | 2023-06-16 | 云沛科技集团有限公司 | Particulate matter calibration bin |
| US10571446B2 (en) | 2017-04-27 | 2020-02-25 | International Business Machines Corporation | Data quality control using a correlated sensor group |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20130718 |