IT1097182B - Dispositivo per accertare la presenza di particelle in sospensione in una fluido - Google Patents
Dispositivo per accertare la presenza di particelle in sospensione in una fluidoInfo
- Publication number
- IT1097182B IT1097182B IT25764/78A IT2576478A IT1097182B IT 1097182 B IT1097182 B IT 1097182B IT 25764/78 A IT25764/78 A IT 25764/78A IT 2576478 A IT2576478 A IT 2576478A IT 1097182 B IT1097182 B IT 1097182B
- Authority
- IT
- Italy
- Prior art keywords
- fluid
- ensure
- suspension particles
- suspension
- particles
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
- G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Measurement Of Radiation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2734347A DE2734347B2 (de) | 1977-07-29 | 1977-07-29 | Anordnung zum Nachweis von Schwebeteilchen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT7825764A0 IT7825764A0 (it) | 1978-07-17 |
| IT1097182B true IT1097182B (it) | 1985-08-26 |
Family
ID=6015204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT25764/78A IT1097182B (it) | 1977-07-29 | 1978-07-17 | Dispositivo per accertare la presenza di particelle in sospensione in una fluido |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT375777B (de) |
| BE (1) | BE869380A (de) |
| BR (1) | BR7804881A (de) |
| CH (1) | CH624767A5 (de) |
| DE (1) | DE2734347B2 (de) |
| IT (1) | IT1097182B (de) |
| NL (1) | NL7807117A (de) |
| SE (1) | SE430828B (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4028188A1 (de) * | 1990-09-05 | 1992-03-12 | Esser Sicherheitstechnik | Brandmelder mit einem streulicht- und einem ionisationssystem |
| US5633501A (en) * | 1995-06-07 | 1997-05-27 | Pittway Corporation | Combination photoelectric and ionization smoke detector |
-
1977
- 1977-07-29 DE DE2734347A patent/DE2734347B2/de not_active Ceased
- 1977-12-20 CH CH1563277A patent/CH624767A5/de not_active IP Right Cessation
-
1978
- 1978-06-30 NL NL7807117A patent/NL7807117A/xx not_active Application Discontinuation
- 1978-07-17 IT IT25764/78A patent/IT1097182B/it active
- 1978-07-27 AT AT0546878A patent/AT375777B/de not_active IP Right Cessation
- 1978-07-28 SE SE7808218A patent/SE430828B/sv unknown
- 1978-07-28 BE BE189595A patent/BE869380A/xx not_active IP Right Cessation
- 1978-07-28 BR BR7804881A patent/BR7804881A/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL7807117A (nl) | 1979-01-31 |
| DE2734347B2 (de) | 1979-12-06 |
| CH624767A5 (en) | 1981-08-14 |
| ATA546878A (de) | 1984-01-15 |
| IT7825764A0 (it) | 1978-07-17 |
| SE7808218L (sv) | 1979-01-30 |
| AT375777B (de) | 1984-09-10 |
| BE869380A (fr) | 1978-11-16 |
| BR7804881A (pt) | 1979-04-17 |
| SE430828B (sv) | 1983-12-12 |
| DE2734347A1 (de) | 1979-02-01 |
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