CN102980840A - Manufacturing method for standard mass membrane used for beta-ray particulate matter calibration - Google Patents
Manufacturing method for standard mass membrane used for beta-ray particulate matter calibration Download PDFInfo
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- CN102980840A CN102980840A CN2012104303729A CN201210430372A CN102980840A CN 102980840 A CN102980840 A CN 102980840A CN 2012104303729 A CN2012104303729 A CN 2012104303729A CN 201210430372 A CN201210430372 A CN 201210430372A CN 102980840 A CN102980840 A CN 102980840A
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Abstract
The invention provides a manufacturing method for a standard mass membrane used for beta-ray particulate matter calibration. According to the invention, chemical etching is utilized to control equivalent mass of the membrane, process requirements are low, manufacturing of the standard mass membrane can be carried out in a chemical laboratory of a normal grade, medicines and materials needed in manufacturing have low cost and are easily available, the standard mass membrane can be made at any time as needed instead of being imported from abroad, work efficiency of measuring can be guaranteed, fixation of the membrane is firm, the problem of inaccurate measurement results resulting from deformation caused by unfirm bonding of the membrane is avoided, the thickness of the membrane is not a fixed value, the equivalent mass can be in a required range, and the standard mass membrane has a wide application scope.
Description
Technical field
The present invention relates to a kind of surveying instrument with the method for making of diaphragm, specifically, is a kind of method for making of carrying out the standard quality diaphragm of β rays method particle calibration usefulness for surveying instrument.
Background technology
Overall suspended pellet is the general important contamination index of in the air quality assessment, refers to be suspended in the particle of airborne aerodynamics equivalent diameter≤100 μ m.The corresponding salt particle that the dust that produces in the flue dust that produces when it is mainly derived from fuel combustion, the process of manufacture, building and traffic airborne dust, dust storm airborne dust and gaseous contaminant generate in air through complicated physical-chemical reaction.Usually particle diameter is called PM10 at the particle below 10 microns, be called again pellet or floating dust.The diameter of particle is less, and the position that enters respiratory tract is darker.The particle of 10 micron diameters is deposited on the upper respiratory tract usually, the deep of the entered respiratory tract of 5 micron diameters, can 100% be deep into bronchiole and alveolar below 2 microns, the healthy of people in pellet or floating dust serious threat, and country also more and more payes attention to the detection of this type of air pollution index at present.
Detecting airborne particle concentration need to use coherent detection equipment to measure, what checkout equipment carried out that the detection of particle concentration mainly uses is the β rays method, cause the change calculations equipotent concentration when relying on ray to pass measured enrichment particle, the diaphragm that therefore must have a cover to be equivalent to the particle quality carries out the instrument calibration in early stage.
Normal this class standard diaphragm that uses can only be supplied with the instrument quota by external apparatus manufacture at present, and price is high, and the quantity that can purchase is few, and buying inconvenience and time cycle are long, has a strong impact on the work efficiency of surveying work.
Summary of the invention
The present invention is directed to present standard diaphragm can only be by external supply, price is high, and the quantity that can purchase is few, and buying inconvenience and time cycle are long, have a strong impact on the shortcomings such as work efficiency of surveying work, proposed a kind of method for making of β rays method particle calibration standard quality diaphragm.
The method for making of β rays method particle calibration standard quality diaphragm of the present invention, step is as follows:
1) optical polyester film is put into the pure cerium hydroxide potassium solution and carried out etching, optical polyester film is etched into respectively the thickness of 39 ± 0.1 μ m, 44.7 ± 0.1 μ m, 54.4 ± 0.1 μ m by the control etching period;
2) optical polyester film is utilized circular die be cut into the diaphragm of suitable size, be that the diaphragm of 44.7 ± 0.1 μ m and 54.4 ± 0.1 μ m was put between radioactive source and the detector follow-on test 4 minutes with thickness, the equivalent mass value of record test gained, the intermediate value of equivalent mass value is got in repeated test for 8 times, with the intermediate value of the equivalent mass value standard quality as each diaphragm; Be that the diaphragm of 39 ± 0.1 μ m is put into and carries out follow-on test between radioactive source and the detector with thickness, the equivalent mass value of record test gained, be that the equivalent mass value that the standard quality diaphragm of 0 μ g records compares with equivalent mass value and standard quality, if error surpasses ± 2% between the two, diaphragm is put into the pure cerium hydroxide potassium solution again carry out etching, then take out test, repeatedly etching test is until etch into error between the equivalent mass value that standard quality diaphragm that the equivalent mass value measured and standard quality be 0 μ g records in ± 2% with diaphragm;
3) carry out bonding pre-treatment, be coated with sodium hydroxide solution to the diaphragm edge place and keep a period of time, the place cleans to diaphragm edge;
4) diaphragm being put into distilled water washes;
5) with jack-up on the tensioning teeth directional of housing;
6) will solidify on the tensioning tooth lower surface that glue utilization point packing element is coated on housing jack-up, keep flat on the tensioning tooth lower surface diaphragm and compacting, and housing and diaphragm integral body are heated make the curing adhesive curing;
7) with the tensioning tooth leveling of housing, diaphragm is tightened;
8) with the standard quality label sticking of diaphragm to the label hurdle of housing.
Preferably, the temperature of carrying out etched pure cerium hydroxide potassium solution is 60 ℃, and the concentration of pure cerium hydroxide potassium solution is 6mol/L.
Preferably, the temperature that spreads upon the sodium hydroxide solution of diaphragm edge is 90 ℃, and the massfraction of sodium hydroxide solution is 10%, and the retention time that diaphragm edge is smeared sodium hydroxide solution is 10 minutes.
Preferably, solidifying the glue amount that glue utilization point packing element is coated on the tensioning tooth is 15 ± 2mg.
Preferably, described curing glue is formed by modification acrylate anaerobic adhesive and the hardening agent ratio mixed preparing with 3: 1.
Preferably, the temperature of the whole heating of housing and diaphragm is 80 ℃, and the duration of heating is 5 minutes.
The invention has the beneficial effects as follows: the method for making of β rays method particle calibration standard quality diaphragm, utilized the equivalent mass of chemical etching control diaphragm, technological requirement is low, the chemical laboratory of general grade can carry out the making of standard quality diaphragm, make required medicine and the cost of material is low, obtain conveniently, can when measurement needs, make at any time, need not from external import, guarantee the work efficiency of surveying work, diaphragm is fixing firm, avoided producing built on the sand deformation owing to diaphragm is bonding, caused the inaccurate problem of measurement result, diaphragm thickness is not fixed value, equivalent mass can be in claimed range, and is applied widely.
Description of drawings
Accompanying drawing 1 is the upward view of housing tensioning toothed portion;
Accompanying drawing 2 is the sectional view before the jack-up on the housing tensioning teeth directional;
Accompanying drawing 3 is the sectional view after the jack-up on the housing tensioning teeth directional;
Accompanying drawing 4 is the sectional view of housing tensioning tooth point glue;
Accompanying drawing 5 is the sectional view of housing tensioning tooth pad pasting;
Accompanying drawing 6 is the sectional view of housing tensioning tooth leveling;
Accompanying drawing 7 is the upward view of standard quality diaphragm.
Embodiment
The method for making of β rays method particle calibration standard quality diaphragm of the present invention.
Select the optical polyester film of 65 μ m, it is that the pure cerium hydroxide potassium solution that 60 ℃ of concentration are 6mol/L carries out etching that optical polyester film is put into temperature, optical polyester film is etched into respectively the thickness of 39 ± 0.1 μ m, 44.7 ± 0.1 μ m, 54.4 ± 0.1 μ m by the control etching period, temperature is that 60 ℃ of concentration are 6mol/L pure cerium hydroxide potassium solution etch effect is better, and etching efficiency is high.
Utilize circular die to be cut into the diaphragm 4 of suitable size optical polyester film, be that the diaphragm 4 of 44.7 ± 0.1 μ m and 54.4 ± 0.1 μ m was put between radioactive source and the detector follow-on test 4 minutes with thickness, the equivalent mass value of record test gained, the intermediate value of equivalent mass value is got in repeated test for 8 times, with the intermediate value of the equivalent mass value standard quality as each diaphragm 4, make the diaphragm that equivalent mass is about 1000 μ g and 2000 μ g; Be that the diaphragm 4 of 39 ± 0.1 μ m is put into and carries out follow-on test between radioactive source and the detector with thickness, the equivalent mass value of record test gained, be that the equivalent mass value that the standard quality diaphragm of 0 μ g records compares with equivalent mass value and standard quality, making equivalent mass is the error requirements height of 0 μ g, if error surpasses ± 2% between the two, diaphragm 4 is put into the pure cerium hydroxide potassium solution again carry out etching, then take out test, repeatedly etching test is until etch into error between the equivalent mass value that standard quality diaphragm that the equivalent mass value measured and standard quality be 0 μ g records in ± 2% with diaphragm 4.
Carry out bonding pre-treatment, to be coated with temperature be 90 ℃ 10% sodium hydroxide solution and kept 10 minutes to diaphragm 4 edges, and 4 edges clean to diaphragm, and 10% the sodium hydroxide solution of smearing temperature and be 90 ℃ makes the diaphragm pulling force maximum.
As shown in Figures 1 to 3, with the tensioning tooth 2 of housing 1 jack-up upwards, with the about 0.5mm of tensioning tooth 2 bottom surface top jack-up, also can be according to the height of diaphragm 4 diameter adjustment tensioning tooth 2 jack-up.
As shown in Figure 4, utilize the some packing element to be coated on tensioning tooth 2 lower surfaces of housing 1 jack-up with solidifying glue 3, solidifying glue 3 is formed by modification acrylate anaerobic adhesive and the hardening agent ratio mixed preparing with 3: 1, point glue amount is 15 ± 2mg, curing and nonelastic in the energy short time, stable chemical nature, as shown in Figure 5, keep flat on tensioning tooth 2 lower surfaces diaphragm 4 and compacting, housing 1 and diaphragm 4 integral body are heated to 80 ℃ of heating 5 minutes, make and solidify glue 3 curing.
As shown in Figure 6, with tensioning tooth 2 levelings of housing 1, diaphragm 4 is tightened, the tensioning tooth can prevent the diaphragm retraction, has avoided causing the inaccurate problem of measurement result because diaphragm produces deformation.
As shown in Figure 7, the standard quality label 5 of diaphragm 4 is pasted on the label hurdle of housing 1, the standard quality diaphragm completes.
Claims (6)
1. the method for making of a β rays method particle calibration standard quality diaphragm is characterized in that step is as follows:
1) optical polyester film is put into the pure cerium hydroxide potassium solution and carried out etching, optical polyester film is etched into respectively the thickness of 39 ± 0.1 μ m, 44.7 ± 0.1 μ m, 54.4 ± 0.1 μ m by the control etching period;
2) optical polyester film is utilized circular die be cut into the diaphragm of suitable size, be that the diaphragm of 44.7 ± 0.1 μ m and 54.4 ± 0.1 μ m was put between radioactive source and the detector follow-on test 4 minutes with thickness, the equivalent mass value of record test gained, the intermediate value of equivalent mass value is got in repeated test for 8 times, with the intermediate value of the equivalent mass value standard quality as each diaphragm;
Be that the diaphragm of 39 ± 0.1 μ m is put into and carries out follow-on test between radioactive source and the detector with thickness, the equivalent mass value of record test gained, be that the equivalent mass value that the standard quality diaphragm of 0 μ g records compares with equivalent mass value and standard quality, if error surpasses ± 2% between the two, diaphragm is put into the pure cerium hydroxide potassium solution again carry out etching, then take out test, repeatedly etching test is until etch into error between the equivalent mass value that standard quality diaphragm that the equivalent mass value measured and standard quality be 0 μ g records in ± 2% with diaphragm;
3) carry out bonding pre-treatment, be coated with sodium hydroxide solution to the diaphragm edge place and keep a period of time, the place cleans to diaphragm edge;
4) diaphragm being put into distilled water washes;
5) with jack-up on the tensioning teeth directional of housing;
6) will solidify glue utilization point packing element and be coated on the tensioning tooth lower surface that the housing item rises, keep flat on the tensioning tooth lower surface diaphragm and compacting, and housing and diaphragm integral body are heated make the curing adhesive curing;
7) with the tensioning tooth leveling of housing, diaphragm is tightened;
8) with the standard quality label sticking of diaphragm to the label hurdle of housing.
2. the method for making of β rays method particle calibration standard quality diaphragm according to claim 1 is characterized in that the temperature of carrying out etched pure cerium hydroxide potassium solution is 60 ℃, and the concentration of pure cerium hydroxide potassium solution is 6mol/L.
3. the method for making of β rays method particle calibration standard quality diaphragm according to claim 1, it is characterized in that, the temperature that spreads upon the sodium hydroxide solution of diaphragm edge is 90 ℃, the massfraction of sodium hydroxide solution is 10%, and the retention time that diaphragm edge is smeared sodium hydroxide solution is 10 minutes.
4. the method for making of β rays method particle calibration standard quality diaphragm according to claim 1 is characterized in that, the glue amount that curing glue utilization point packing element is coated on the tensioning tooth is 15 ± 2mg.
5. the method for making of β rays method particle calibration standard quality diaphragm according to claim 1 is characterized in that, described curing glue is formed by modification acrylate anaerobic adhesive and the hardening agent ratio mixed preparing with 3: 1.
6. the method for making of β rays method particle calibration standard quality diaphragm according to claim 1 is characterized in that, the temperature of the whole heating of housing and diaphragm is 80 ℃, and the duration of heating is 5 minutes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104303729A CN102980840A (en) | 2012-11-02 | 2012-11-02 | Manufacturing method for standard mass membrane used for beta-ray particulate matter calibration |
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| CN2012104303729A CN102980840A (en) | 2012-11-02 | 2012-11-02 | Manufacturing method for standard mass membrane used for beta-ray particulate matter calibration |
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| CN102980840A true CN102980840A (en) | 2013-03-20 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014725A (en) * | 2017-03-20 | 2017-08-04 | 中国环境科学研究院 | It is a kind of to handle method and a kind of method calibrated outside the venue by calibration dirt film that filter membrane obtains calibrating dirt film |
| CN108981889A (en) * | 2018-08-08 | 2018-12-11 | 北京雪迪龙科技股份有限公司 | The production method that a kind of β absorbs dust gauge standard diaphragm |
| CN109238934A (en) * | 2018-10-15 | 2019-01-18 | 中煤科工集团重庆研究院有限公司 | β ray attenuation method particulate matter concentration monitoring method and system considering filter membrane deformation |
| CN112577871A (en) * | 2020-12-30 | 2021-03-30 | 西安鼎研科技股份有限公司 | Standard mass diaphragm for calibrating atmospheric particle concentration measuring instrument by beta-ray method and manufacturing method thereof |
| CN114186838A (en) * | 2021-12-08 | 2022-03-15 | 河北建投能源科学技术研究院有限公司 | Equipment and method for evaluating accuracy of gas-solid two-phase flow measuring device |
| CN117054305A (en) * | 2023-10-11 | 2023-11-14 | 广东盈峰科技有限公司 | Monitor, calibration method and device thereof and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2424463Y (en) * | 2000-03-24 | 2001-03-21 | 中国科学院安徽光学精密机械研究所 | On-line measurer for content of breathable air dust |
| CN2447777Y (en) * | 2000-08-08 | 2001-09-12 | 北京迪克机电技术有限公司 | Beta ray dust gauge |
| EP2168666A1 (en) * | 2008-09-25 | 2010-03-31 | Gambro Lundia AB | Irradiated membrane for cell expansion |
| JP4590367B2 (en) * | 2006-03-20 | 2010-12-01 | 株式会社堀場製作所 | Airborne particulate matter measurement filter |
-
2012
- 2012-11-02 CN CN2012104303729A patent/CN102980840A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2424463Y (en) * | 2000-03-24 | 2001-03-21 | 中国科学院安徽光学精密机械研究所 | On-line measurer for content of breathable air dust |
| CN2447777Y (en) * | 2000-08-08 | 2001-09-12 | 北京迪克机电技术有限公司 | Beta ray dust gauge |
| JP4590367B2 (en) * | 2006-03-20 | 2010-12-01 | 株式会社堀場製作所 | Airborne particulate matter measurement filter |
| EP2168666A1 (en) * | 2008-09-25 | 2010-03-31 | Gambro Lundia AB | Irradiated membrane for cell expansion |
Non-Patent Citations (4)
| Title |
|---|
| M. SENONER ET AL: "BAM-L002:A new type of certified reference material for length calibration and testing of lateral resolution in the nanometre range", 《SURFACE AND INTERFACE ANALYSIS》 * |
| 王洪超，过惠平，徐智林，张磊: "聚酯膜固体径迹探测器的最佳蚀刻条件", 《核技术》 * |
| 陈瑜，符春等: "BAM-1020型β射线自动测尘仪校准的不确定度评定", 《广州化工》 * |
| 青岛佳明测控科技股份有限公司: "大气颗粒物PM2.5监测仪的开发", 《第五届中国在线分析仪器应用及发展国际论坛论文集》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014725A (en) * | 2017-03-20 | 2017-08-04 | 中国环境科学研究院 | It is a kind of to handle method and a kind of method calibrated outside the venue by calibration dirt film that filter membrane obtains calibrating dirt film |
| WO2018171097A1 (en) * | 2017-03-20 | 2018-09-27 | 中国环境科学研究院 | Method for obtaining calibration dust membrane by treating filter membrane and method for carrying out off-site calibration by calibration dust membrane |
| CN107014725B (en) * | 2017-03-20 | 2019-07-16 | 中国环境科学研究院 | A kind of processing filter membrane obtains calibrating the method and a kind of method calibrated outside the venue by calibration dirt film of dirt film |
| US11181458B2 (en) | 2017-03-20 | 2021-11-23 | Chinese Research Academy Of Environmental Sciences | Method for processing filter to obtain calibration dust filter, and method for off-site calibration using calibration dust filter |
| CN108981889A (en) * | 2018-08-08 | 2018-12-11 | 北京雪迪龙科技股份有限公司 | The production method that a kind of β absorbs dust gauge standard diaphragm |
| CN109238934A (en) * | 2018-10-15 | 2019-01-18 | 中煤科工集团重庆研究院有限公司 | β ray attenuation method particulate matter concentration monitoring method and system considering filter membrane deformation |
| CN112577871A (en) * | 2020-12-30 | 2021-03-30 | 西安鼎研科技股份有限公司 | Standard mass diaphragm for calibrating atmospheric particle concentration measuring instrument by beta-ray method and manufacturing method thereof |
| CN114186838A (en) * | 2021-12-08 | 2022-03-15 | 河北建投能源科学技术研究院有限公司 | Equipment and method for evaluating accuracy of gas-solid two-phase flow measuring device |
| CN117054305A (en) * | 2023-10-11 | 2023-11-14 | 广东盈峰科技有限公司 | Monitor, calibration method and device thereof and storage medium |
| CN117054305B (en) * | 2023-10-11 | 2023-12-22 | 广东盈峰科技有限公司 | Monitor, calibration method and device thereof and storage medium |
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