BR7307570D0 - Dispositivo aperfeicoado para medir a poluicao do ar - Google Patents
Dispositivo aperfeicoado para medir a poluicao do arInfo
- Publication number
- BR7307570D0 BR7307570D0 BR7570/73A BR757073A BR7307570D0 BR 7307570 D0 BR7307570 D0 BR 7307570D0 BR 7570/73 A BR7570/73 A BR 7570/73A BR 757073 A BR757073 A BR 757073A BR 7307570 D0 BR7307570 D0 BR 7307570D0
- Authority
- BR
- Brazil
- Prior art keywords
- air pollution
- improved device
- measuring air
- measuring
- improved
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/60—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrostatic variables, e.g. electrographic flaw testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Sampling And Sample Adjustment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2261792A DE2261792C2 (de) | 1972-12-16 | 1972-12-16 | Vorrichtung zur Messung der Luftverschmutzung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR7307570D0 true BR7307570D0 (pt) | 1974-08-15 |
Family
ID=5864663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR7570/73A BR7307570D0 (pt) | 1972-12-16 | 1973-09-28 | Dispositivo aperfeicoado para medir a poluicao do ar |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3889180A (pt) |
| JP (1) | JPS4991295A (pt) |
| BR (1) | BR7307570D0 (pt) |
| CA (1) | CA997423A (pt) |
| CH (1) | CH550399A (pt) |
| DE (1) | DE2261792C2 (pt) |
| FR (1) | FR2214377A5 (pt) |
| GB (1) | GB1367440A (pt) |
| IL (1) | IL42851A (pt) |
| IT (1) | IT994174B (pt) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4121458A (en) * | 1977-02-24 | 1978-10-24 | Westinghouse Electric Corp. | Reliable dynamoelectric machine condition monitor |
| US4114088A (en) * | 1977-02-28 | 1978-09-12 | Cecil Alfred Laws | Atmospheric ion density measurement |
| GB1578157A (en) * | 1977-07-06 | 1980-11-05 | Univ Bradford | Method and apparatus for monitoring particle sizes |
| US4264331A (en) * | 1977-08-03 | 1981-04-28 | Johnson Controls, Inc. | Charged non-conductive polar gas sensing element and detection system |
| SE435577B (sv) * | 1982-09-22 | 1984-10-08 | Nederman Bill P Ph | Sett att overvaka forendringar av filtreringseffekten hos filtreringsanordningar for utskiljning av fororeningar ur gasfloden, spec skadliga substanser ur svetsgaser, och anordning for genomforande av ifragavarande sett |
| DE3311194A1 (de) * | 1983-03-26 | 1984-10-04 | Kernforschungsanlage Jülich GmbH, 5170 Jülich | Druckmessgeraet fuer tritiumdrucke von 0,1 mbar bis 100 bar |
| FI75055C (fi) * | 1986-06-03 | 1988-04-11 | Puumalaisen Tutkimuslaitos Oy | Foerfarande foer observerande av ingredienshalter av gas. |
| JP4655738B2 (ja) * | 2005-04-22 | 2011-03-23 | パナソニック電工株式会社 | 帯電粒子量評価装置および帯電粒子量評価方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3679973A (en) * | 1970-10-20 | 1972-07-25 | Us Interior | Electrogasdynamic dust monitor |
| US3763428A (en) * | 1971-11-26 | 1973-10-02 | Varian Associates | Simultaneous measurement of the size distribution of aerosol particles and the number of particles of each size in a flowing gaseous medium |
-
1972
- 1972-12-16 DE DE2261792A patent/DE2261792C2/de not_active Expired
-
1973
- 1973-07-24 CH CH1078773A patent/CH550399A/xx not_active IP Right Cessation
- 1973-07-26 GB GB3554973A patent/GB1367440A/en not_active Expired
- 1973-07-30 IL IL42851A patent/IL42851A/en unknown
- 1973-08-30 IT IT52258/73A patent/IT994174B/it active
- 1973-09-28 BR BR7570/73A patent/BR7307570D0/pt unknown
- 1973-12-12 US US426628A patent/US3889180A/en not_active Expired - Lifetime
- 1973-12-13 CA CA188,147A patent/CA997423A/en not_active Expired
- 1973-12-14 JP JP48140208A patent/JPS4991295A/ja active Pending
- 1973-12-14 FR FR7344869A patent/FR2214377A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT994174B (it) | 1975-10-20 |
| DE2261792A1 (pt) | 1974-02-28 |
| JPS4991295A (pt) | 1974-08-31 |
| DE2261792C2 (de) | 1974-10-03 |
| GB1367440A (en) | 1974-09-18 |
| CH550399A (de) | 1974-06-14 |
| DE2261792B1 (de) | 1974-02-28 |
| CA997423A (en) | 1976-09-21 |
| IL42851A (en) | 1976-05-31 |
| IL42851A0 (en) | 1973-10-25 |
| FR2214377A5 (pt) | 1974-08-09 |
| US3889180A (en) | 1975-06-10 |
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