CN202404002U - Microcomputer digital dust testing device - Google Patents
Microcomputer digital dust testing device Download PDFInfo
- Publication number
- CN202404002U CN202404002U CN2011205643146U CN201120564314U CN202404002U CN 202404002 U CN202404002 U CN 202404002U CN 2011205643146 U CN2011205643146 U CN 2011205643146U CN 201120564314 U CN201120564314 U CN 201120564314U CN 202404002 U CN202404002 U CN 202404002U
- Authority
- CN
- China
- Prior art keywords
- chip microcomputer
- micro computer
- signal processing
- processing module
- power supply
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
A microcomputer digital dust testing device comprises a single-chip microcomputer and is characterized by further comprising a signal processing module, an air sampling pump, a microcomputer touch screen and a power supply. Two 5V power supply output ends of the power supply are connected with the signal processing module and the single-chip microcomputer respectively, a 12V power supply output end of the power supply is connected with the microcomputer touch screen, the microcomputer touch screen is connected with a communication port of the single-chip microcomputer, the single-chip microcomputer is connected with the signal processing module, a control signal end of the air sampling pump is connected with the single-chip microcomputer, and the air sampling pump is connected with the signal processing module. The microcomputer digital dust testing device is simple in structure, low in energy consumption and operation cost, high in operation stability and measurement precision, good in environment adaptation, visual and convenient to operate, high in sensitivity, convenient to install and maintain and the like.
Description
Technical field
The utility model belongs to bad border monitoring technical field; Be specifically related to a kind of micro computer numeral dust determination appearance, mensuration, industrial and mining enterprises production scene, dust concentration continuous monitoring, the public place that this micro computer numeral dust determination appearance can be applicable to labour hygiene respirable dust, total dust concentration can suck the aspects such as fast measuring of a material thing (PM10) and environmental monitoring department air participates.
Background technology
The detecting device extraneous air gets into and attracts mouth, removes oversize grain through the labyrinth type cutter, covers extraneous light, gets into the detecting device darkroom.Directional light in the darkroom meets at right angles to intersect with the visual field of light accepting part and constitutes sensitive volume (figure bend part); When dust passes through the sensitive volume; Its 90 ℃ of direction scattered lights inject photomultiplier through slit and convert photocurrent to, the umber of pulse in the unit interval that the photocurrent integrating circuit converts to scattered light is directly proportional.Therefore the umber of pulse in the record unit time just can be obtained the relative mass concentration of dust.
This micro computer numeral dust determination appearance relative mass concentration unit uses CPM (Count Per Minute), means " step-by-step counting of per minute ", and mass concentration unit uses mg/m
3
Summary of the invention
The purpose of the utility model is to provide a kind of micro computer numeral dust determination appearance, and this analyzer is equipped with the micro computer touch-screen.This instrument uses and meets work industry standard " the determination of light scattering method of dust concentration in the air ", Ministry of Public Health's standard " pellet in the public place air (PM10) assay method-light scattering method ".
The technical scheme of the utility model:
A kind of micro computer numeral dust determination appearance; Comprise single-chip microcomputer; Also comprise signal processing module, gas samping pump, micro computer touch-screen and power supply, 2 5V power output ends of said power supply connect signal processing module and single-chip microcomputer respectively, and the 12V power output end of power supply connects the micro computer touch-screen; The micro computer touch-screen is connected with the COM1 of single-chip microcomputer; Single-chip microcomputer links to each other with signal processing module, and the control signal end of gas samping pump links to each other with single-chip microcomputer, and gas samping pump links to each other with signal processing module.
Said micro computer touch-screen is provided with data storage input/output terminal and printout end.
Said single-chip microcomputer is provided with data acquisition end and crystal oscillator end.
Said signal processing module comprises well heater, light emitting diode, sensor, signal amplifier circuit, the first circuit output module and second circuit output module; Sensor is connected with signal amplifier circuit, and signal amplifier circuit connects the first circuit output module and second circuit output module.
The beneficial effect of the utility model is:
The micro computer of the utility model numeral dust determination appearance is simple in structure, energy consumption is low, and operating cost is lower, and operation stability is high, also have measuring accuracy height, good environmental adaptability, control advantages such as convenient and intuitive, clever lightness is high, convenient for installation and maintenance.
Description of drawings
Fig. 1 is the theory diagram of the utility model.
Embodiment
Following the utility model will combine the embodiment in the accompanying drawing to do further description:
Like Fig. 1; A kind of micro computer numeral dust determination appearance comprises single-chip microcomputer, also comprises signal processing module, gas samping pump, micro computer touch-screen and power supply; 2 5V power output ends of said power supply connect signal processing module and single-chip microcomputer respectively; The 12V power output end of power supply connects the micro computer touch-screen, and the micro computer touch-screen is connected with the COM1 of single-chip microcomputer, and single-chip microcomputer links to each other with signal processing module; The control signal end of gas samping pump links to each other with single-chip microcomputer, and gas samping pump links to each other with signal processing module.
The micro computer touch-screen is provided with data storage input/output terminal and printout end.
Single-chip microcomputer is provided with data acquisition end and crystal oscillator end.
Signal processing module comprises well heater, light emitting diode, sensor, signal amplifier circuit, the first circuit output module and second circuit output module; Sensor is connected with signal amplifier circuit, and signal amplifier circuit connects the first circuit output module and second circuit output module.
Sensor comprises infrared sensor and electrochemical sensor.
The main performance index of the micro computer numeral dust determination appearance of the utility model is following:
Detection sensitivity: type 1CPM=0.01mg/M
3(value that the stearic acid particle of mean grain size 0.3 μ m geometric standard deviation 1.25 is proofreaied and correct);
Measuring principle: light scattering principle;
Measurement range: 0.01～100mg/M
3
Environment temperature: 0～40 ℃;
Measure precision: ± 10% (relative correction particle);
Data: can store 200 grade data;
Operation interface: the micro computer touch-screen, K value and correction coefficient are provided with the concentration of attending a day school arbitrarily;
Output: link to each other printable output with PC;
Data can be imported data into;
Power supply: the 12V rechargeable battery, can use 12 hours continuously;
Attaches the 220V/12V charger;
Minute: the standard time is 1 minute, sets arbitrarily.
Computer display screen: numeral shows 0～100mg/M
3, response speed 6 seconds 90%, the K value is set arbitrarily.
Embodiment recited above describes preferred implementation of the present invention; Be not that design of the present invention and scope are limited; Do not breaking away under the design concept prerequisite of the present invention; Common engineering technical personnel make technical scheme of the present invention in this area various modification and improvement all should fall into protection scope of the present invention, and the technology contents that the present invention asks for protection all is documented in claims.
Claims (4)
1. micro computer numeral dust determination appearance; Comprise single-chip microcomputer; It is characterized in that also comprising signal processing module, gas samping pump, micro computer touch-screen and power supply, 2 5V power output ends of said power supply connect signal processing module and single-chip microcomputer respectively, and the 12V power output end of power supply connects the micro computer touch-screen; The micro computer touch-screen is connected with the COM1 of single-chip microcomputer; Single-chip microcomputer links to each other with signal processing module, and the control signal end of gas samping pump links to each other with single-chip microcomputer, and gas samping pump links to each other with signal processing module.
2. micro computer numeral dust determination appearance according to claim 1 is characterized in that said micro computer touch-screen is provided with data storage input/output terminal and printout end.
3. micro computer numeral dust determination appearance according to claim 1 is characterized in that said single-chip microcomputer is provided with data acquisition end and crystal oscillator end.
4. micro computer numeral dust determination appearance according to claim 1; It is characterized in that said signal processing module comprises well heater, light emitting diode, sensor, signal amplifier circuit, the first circuit output module and second circuit output module; Sensor is connected with signal amplifier circuit, and signal amplifier circuit connects the first circuit output module and second circuit output module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205643146U CN202404002U (en) | 2011-12-29 | 2011-12-29 | Microcomputer digital dust testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205643146U CN202404002U (en) | 2011-12-29 | 2011-12-29 | Microcomputer digital dust testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202404002U true CN202404002U (en) | 2012-08-29 |
Family
ID=46701643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205643146U Expired - Fee Related CN202404002U (en) | 2011-12-29 | 2011-12-29 | Microcomputer digital dust testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202404002U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122174A (en) * | 2013-04-26 | 2014-10-29 | 无锡飘睿健康科技有限公司 | Dust particle analysis module of air quality control device |
| CN104849187A (en) * | 2015-04-24 | 2015-08-19 | 山东大学 | Dust concentration measurement instrument and measurement method based on human body physiological sensing |
| CN105136633A (en) * | 2015-08-12 | 2015-12-09 | 朱凌云 | Pulsed infrared dust concentration detection circuit |
-
2011
- 2011-12-29 CN CN2011205643146U patent/CN202404002U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122174A (en) * | 2013-04-26 | 2014-10-29 | 无锡飘睿健康科技有限公司 | Dust particle analysis module of air quality control device |
| CN104849187A (en) * | 2015-04-24 | 2015-08-19 | 山东大学 | Dust concentration measurement instrument and measurement method based on human body physiological sensing |
| CN105136633A (en) * | 2015-08-12 | 2015-12-09 | 朱凌云 | Pulsed infrared dust concentration detection circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201955259U (en) | Air sampler | |
| CN205175464U (en) | Quality intelligence short -term test appearance is synthesized to portable air | |
| CN203037360U (en) | Intelligent temperature measuring instrument | |
| CN100483473C (en) | Device and method for measuring DC resultant field | |
| CN203964959U (en) | A kind of stockyard spontaneous combustion of coal pick-up unit | |
| CN202404002U (en) | Microcomputer digital dust testing device | |
| CN103630170A (en) | Portable multi-sensor wireless transmission itinerant detector | |
| CN105181542A (en) | Intelligent environment monitoring instrument | |
| CN203998493U (en) | Portable elevator intelligent detecting instrument | |
| CN203100841U (en) | Electronic weighing apparatus | |
| CN201331532Y (en) | Wide range methane sensor device | |
| CN205049175U (en) | Portable environment measuring wrist strap | |
| CN207675600U (en) | A kind of intelligence high-precision dust sensor | |
| CN201852600U (en) | Portable multifunctional comprehensive safety detector | |
| CN202210074U (en) | Portable infrared absorbing type methane detector | |
| CN201173905Y (en) | Chlorine gas concentration on-line monitoring device | |
| CN203769856U (en) | Methane concentration detecting alarm | |
| CN206975007U (en) | Online dissolved oxygen and pH monitor | |
| CN204882313U (en) | Intelligent environment monitor | |
| CN206556694U (en) | A kind of multifunctional air quality detection means | |
| CN203053990U (en) | Wind speed and wind direction measuring system | |
| Yanjiao et al. | Design of air quality detector based on STM32 | |
| CN206056635U (en) | A kind of environmental conservation real-time detection apparatus | |
| CN202330344U (en) | Methane and carbon dioxide measurer | |
| CN218629338U (en) | Methane gas concentration monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20141229 |
|
| EXPY | Termination of patent right or utility model |