CH355380A - Einrichtung zur Feststellung von Änderungen in der Zusammensetzung eines Gases - Google Patents
Einrichtung zur Feststellung von Änderungen in der Zusammensetzung eines GasesInfo
- Publication number
- CH355380A CH355380A CH355380DA CH355380A CH 355380 A CH355380 A CH 355380A CH 355380D A CH355380D A CH 355380DA CH 355380 A CH355380 A CH 355380A
- Authority
- CH
- Switzerland
- Prior art keywords
- composition
- gas
- determining changes
- determining
- changes
- 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
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/64—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
- G01N27/66—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage
-
- 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
- G08B17/113—Constructional details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
- H01J41/02—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas
- H01J41/08—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of radioactive substances, e.g. alphatrons
Landscapes
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Emergency Management (AREA)
- Toxicology (AREA)
- Business, Economics & Management (AREA)
- Electrochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH2963600X | 1957-10-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH355380A true CH355380A (de) | 1961-06-30 |
Family
ID=4573070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH355380D CH355380A (de) | 1957-10-30 | 1957-10-30 | Einrichtung zur Feststellung von Änderungen in der Zusammensetzung eines Gases |
Country Status (4)
Country | Link |
---|---|
US (1) | US2963600A (de) |
CH (1) | CH355380A (de) |
DE (1) | DE1079351B (de) |
FR (1) | FR1202930A (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH380594A (de) * | 1960-11-02 | 1964-07-31 | Securiton Ag | Ionisations-Brandmeldeanlage |
DE1198712B (de) * | 1961-12-30 | 1965-08-12 | Danske Securitas As | Elektrische Alarmanlage |
DE1279513B (de) * | 1963-10-16 | 1968-10-03 | Pour Applic Electroniques Ets | Ionisationsmelder, dessen Ionisationskammer fuer die Atmosphaere zugaenglich ist |
US3514603A (en) * | 1966-12-22 | 1970-05-26 | Johnson Service Co | Ionization chamber detection apparatus having a low voltage source means |
FR1540305A (fr) * | 1967-02-09 | 1968-09-27 | Dispositif perfectionné de détection d'incendie | |
CH460594A (de) * | 1967-08-09 | 1968-07-31 | Cerberus Ag | Feuermelder mit einem gegen Berührung geschützten Feldeffekttransistor |
DE2029485B2 (de) * | 1969-06-21 | 1971-11-25 | Nittan Co. Ltd., Tokio | Ionisations rauchfuehler |
US3792254A (en) * | 1971-07-15 | 1974-02-12 | Vigifeu | Ionization chamber in particular for a fire detection device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH227471A (de) * | 1940-01-31 | 1943-06-15 | C Jaeger Walter | Einrichtung zur Anzeige von Veränderungen eines Gases oder Gasgemisches. |
DE844220C (de) * | 1949-08-01 | 1952-07-17 | Elektro Watt Elek Sche | Gasdetektor |
-
1957
- 1957-10-30 CH CH355380D patent/CH355380A/de unknown
-
1958
- 1958-02-24 DE DEC16354A patent/DE1079351B/de active Pending
- 1958-03-17 FR FR1202930D patent/FR1202930A/fr not_active Expired
- 1958-07-11 US US748051A patent/US2963600A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR1202930A (fr) | 1960-01-14 |
DE1079351B (de) | 1960-04-07 |
US2963600A (en) | 1960-12-06 |
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