CN203148816U - Atmospheric particle monitor - Google Patents
Atmospheric particle monitor Download PDFInfo
- Publication number
- CN203148816U CN203148816U CN 201320173669 CN201320173669U CN203148816U CN 203148816 U CN203148816 U CN 203148816U CN 201320173669 CN201320173669 CN 201320173669 CN 201320173669 U CN201320173669 U CN 201320173669U CN 203148816 U CN203148816 U CN 203148816U
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- embedded microprocessor
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Abstract
The utility model discloses an atmospheric particle monitor which comprises a sampling tube (12), a heater (13), a monitoring device (3), a mass flow controller (7), a dynamic humidity control system (14) and a sucking pump (10). The monitoring device (3) is internally provided with a flow dynamic control system (9) which comprises an embedded microprocessor (4), an analog-digital converter (6) and a digital-analog converter (8). The sampling tube (12) is provided with a temperature sensor (2) connected with the embedded microprocessor (4). The flow dynamic control system (9) is provided with an atmospheric sensor (5) connected with the embedded microprocessor (4). The mass flow controller (7) is connected with the analog-digital converter (6) and the digital-analog converter (8) in series. As the sampling flow dynamic control system is installed, flow at a sampling opening can be dynamically adjusted in a set precise range in real time regardless of change of environmental temperature and atmospheric pressure at the sampling opening. As the flow at the sampling tube is constant and invariable, the precision of the monitor which measures the concentration of atmospheric particles is improved.
Description
Technical field
The utility model relates to a kind of atmosphere particle monitoring instrument.
Background technology
When measuring the concentration of Atmospheric particulates with the atmosphere particle monitoring instrument, need know the flow value of thief hatch, the accuracy of flow value is more high, and the precision of the concentration value of measured Atmospheric particulates is just more high.Generally speaking, mass flowmeter is mounted in the airborne particulate monitor main frame, environment temperature and the atmospheric pressure at thief hatch place are not introduced the conversion that flow control system is marked condition and operating mode, so the flow value that records is the flow value at place in the atmosphere particle monitoring instrument main frame, so flow value that this value can not the actual response thief hatch, if flow is inaccurate, the atmosphere particle concentration value that converts according to flow is also just inaccurate so.
The utility model content
The purpose of this utility model is to solve the problem of accurately calculating the atmosphere particle concentration value.
The technical solution adopted in the utility model is: a kind of atmosphere particle monitoring instrument, comprise sampling pipe, well heater, monitoring device, mass flow controller, dynamic psychrometric control system, aspiration pump, be provided with the flow dynamics control system in the described monitoring device, described flow dynamics control system comprises embedded microprocessor, analog to digital converter and digital to analog converter; Described sampling pipe is provided with the temperature sensor that is connected with embedded microprocessor; Described flow dynamics control system is provided with the atmosphere pressure sensor that is connected with embedded microprocessor.
As further improvement of the utility model, described mass flow controller is connected in series with analog to digital converter and digital to analog converter.
The beneficial effect that the utility model adopts is: by the sampling flow kinetic-control system has been installed, and no matter environment temperature and atmospheric how variation of thief hatch, the flow of thief hatch all can dynamically be adjusted in the accuracy rating of setting in real time.Since the constant flow of thief hatch with stablize constantly, just improved so monitor is measured the precision of atmosphere particle concentration.
Description of drawings
Fig. 1 is the utility model synoptic diagram.
Shown in the figure: 2 temperature sensors, 3 monitoring devices, 4 embedded microprocessors, 5 atmosphere pressure sensors, 6 analog to digital converters, 7 mass flow controllers, 8 digital to analog converters, 9 flow dynamics control system, 10 aspiration pumps, 12 sampling pipes, 13 well heaters, 14 dynamic psychrometric control system.
Embodiment
Below in conjunction with Fig. 1, present embodiment comprises sampling pipe 12, well heater 13, monitoring device 3, mass flow controller 7, dynamic psychrometric control system 14, aspiration pump 10, atmosphere vent pipe 11, be provided with flow dynamics control system 9 in the described monitoring device 3, described flow dynamics control system 9 comprises embedded microprocessor 4, analog to digital converter 6 and digital to analog converter 8; Described sampling pipe 12 is provided with the temperature sensor 2 that is connected with embedded microprocessor 4; Described flow dynamics control system 9 is provided with the atmosphere pressure sensor 5 that is connected with embedded microprocessor 4; Described mass flow controller 7 is connected in series with analog to digital converter 6 and digital to analog converter 8; How no matter the temperature of thief hatch change, how no matter atmospheric pressure change, and the operating mode flow at its thief hatch place all is to change in the tolerance band of setting.Because embedded microprocessor 4 is calculated the actual flow of thief hatch according to the thermometer of atmospheric pressure and thief hatch, when actual flow is higher than the flow value of setting, provide corresponding input voltage that its by-pass valve control turned down by digital to analog converter 8 to mass flow controller 7 by embedded microprocessor 4, thereby the actual flow of realizing thief hatch reduces, flow information after will reducing is input to embedded microprocessor 4 by analog to digital converter 6 again and calculates the value that whether reaches setting again, and so circulation is till the value that reaches setting.Equally, if the flow of thief hatch is less than the value of setting, the micrometer processor opens greatly the by-pass valve control on the mass flow controller by digital to analog converter, the purpose that increases with the actual flow that reaches thief hatch, flow information after will opening greatly by analog to digital converter simultaneously inputs to embedded microprocessor to carry out the signal processing and judges, is purpose to reach setting value.By the sampling flow kinetic-control system has been installed, no matter environment temperature and atmospheric how variation of thief hatch, the flow of thief hatch all can dynamically be adjusted in the accuracy rating of setting in real time.Since the constant flow of thief hatch with stablize constantly, just improved so monitor is measured the precision of atmosphere particle concentration.
Claims (2)
1. atmosphere particle monitoring instrument, comprise sampling pipe (12), monitoring device (3), well heater (13), mass flow controller (7), dynamic psychrometric control system (14), aspiration pump (10), it is characterized in that being provided with in the described monitoring device (3) flow dynamics control system (9), described flow dynamics control system (9) comprises embedded microprocessor (4), analog to digital converter (6) and digital to analog converter (8); Described sampling pipe (12) is provided with the temperature sensor (2) that is connected with embedded microprocessor (4); Described flow dynamics control system (9) is provided with the atmosphere pressure sensor (5) that is connected with embedded microprocessor (4).
2. atmosphere particle monitoring instrument according to claim 1 is characterized in that described analog to digital converter (6) and digital to analog converter (8) are connected in series with mass flow controller (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320173669 CN203148816U (en) | 2013-04-09 | 2013-04-09 | Atmospheric particle monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320173669 CN203148816U (en) | 2013-04-09 | 2013-04-09 | Atmospheric particle monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203148816U true CN203148816U (en) | 2013-08-21 |
Family
ID=48976332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320173669 Expired - Lifetime CN203148816U (en) | 2013-04-09 | 2013-04-09 | Atmospheric particle monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203148816U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111948106A (en) * | 2020-08-11 | 2020-11-17 | 陈海南 | City air networking check out test set |
-
2013
- 2013-04-09 CN CN 201320173669 patent/CN203148816U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111948106A (en) * | 2020-08-11 | 2020-11-17 | 陈海南 | City air networking check out test set |
| CN111948106B (en) * | 2020-08-11 | 2021-09-07 | 山东圣文环保科技有限公司 | City air networking check out test set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 230000 Huguang Road Independent Innovation Industrial Base, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Anhui Anguang Environmental Technology Co.,Ltd. Address before: 230000 Huayi Science Park C-201, 71 Tianda Road, Hefei High-tech Zone, Anhui Province Patentee before: ANHUI ANGUANG ENVIRONMENT OPTICAL ENGINEERING TECHNOLOGY RESEARCH CENTER CO.,LTD. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |
|
| CX01 | Expiry of patent term |