GB1440588A - Apparatus for measuring turbidity - Google Patents
Apparatus for measuring turbidityInfo
- Publication number
- GB1440588A GB1440588A GB5145773A GB5145773A GB1440588A GB 1440588 A GB1440588 A GB 1440588A GB 5145773 A GB5145773 A GB 5145773A GB 5145773 A GB5145773 A GB 5145773A GB 1440588 A GB1440588 A GB 1440588A
- Authority
- GB
- United Kingdom
- Prior art keywords
- potential
- gas
- nov
- chamber
- measuring
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Measuring Cells (AREA)
Abstract
1440588 Photo-electric turbidimeters ROBERT BOSCH GmbH 6 Nov 1973 [7 Nov 1972] 51457/73 Heading G1A Apparatus for measuring the turbidity of a gas is identical to that described in Patent Specification 1420002 but is modified by the provision of a member 40 to which is applied a negative potential so as to apply an electrostatic charge to the particles in the gas to prevent deposition on the discs 21, 22 or on the walls of the chamber 10, to which a potential of the same polarity is applied. A potential of opposite polarity is applied to baffle plate 42 to improve measurement accuracy, and substantially reduce contamination of the ambient air in the vicinity of the measuring apparatus. A negative potential is also applied to deflector plates 24 to improve gas flow through the chamber.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2254388A DE2254388C2 (en) | 1972-11-07 | 1972-11-07 | Opacimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1440588A true GB1440588A (en) | 1976-06-23 |
Family
ID=5861024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5145773A Expired GB1440588A (en) | 1972-11-07 | 1973-11-06 | Apparatus for measuring turbidity |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2254388C2 (en) |
| FR (1) | FR2206002A5 (en) |
| GB (1) | GB1440588A (en) |
| IT (1) | IT1001641B (en) |
-
1972
- 1972-11-07 DE DE2254388A patent/DE2254388C2/en not_active Expired
-
1973
- 1973-11-06 GB GB5145773A patent/GB1440588A/en not_active Expired
- 1973-11-06 IT IT3098473A patent/IT1001641B/en active
- 1973-11-07 FR FR7339592A patent/FR2206002A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2254388C2 (en) | 1975-01-02 |
| FR2206002A5 (en) | 1974-05-31 |
| DE2254388B1 (en) | 1974-05-16 |
| IT1001641B (en) | 1976-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |