IL35151A - Ionization smoke detector - Google Patents
Ionization smoke detectorInfo
- Publication number
- IL35151A IL35151A IL35151A IL3515170A IL35151A IL 35151 A IL35151 A IL 35151A IL 35151 A IL35151 A IL 35151A IL 3515170 A IL3515170 A IL 3515170A IL 35151 A IL35151 A IL 35151A
- Authority
- IL
- Israel
- Prior art keywords
- ionization
- voltage
- smoke detector
- electrode
- field effect
- Prior art date
Links
- 239000000779 smoke Substances 0.000 title claims description 31
- 230000005669 field effect Effects 0.000 claims description 19
- 230000002285 radioactive effect Effects 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000004020 conductor Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- GXCDLJXPZVCHBX-UHFFFAOYSA-N 3-methylpent-1-yn-3-yl carbamate Chemical compound CCC(C)(C#C)OC(N)=O GXCDLJXPZVCHBX-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
- G01T7/12—Provision for actuation of an alarm
- G01T7/125—Alarm- or controlling circuits using ionisation chambers, proportional counters or Geiger-Mueller tubes, also functioning as UV detectors
-
- 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
-
- 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
- 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
Landscapes
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- General Health & Medical Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- Toxicology (AREA)
- Immunology (AREA)
- Pathology (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Fire-Detection Mechanisms (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5797969 | 1969-07-24 | ||
| JP6683969A JPS4819118B1 (enrdf_load_stackoverflow) | 1969-08-26 | 1969-08-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL35151A0 IL35151A0 (en) | 1970-10-30 |
| IL35151A true IL35151A (en) | 1973-08-29 |
Family
ID=26399064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL35151A IL35151A (en) | 1969-07-24 | 1970-08-23 | Ionization smoke detector |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3688119A (enrdf_load_stackoverflow) |
| CH (1) | CH526178A (enrdf_load_stackoverflow) |
| DE (1) | DE2036447B2 (enrdf_load_stackoverflow) |
| FR (1) | FR2055543A5 (enrdf_load_stackoverflow) |
| GB (1) | GB1282536A (enrdf_load_stackoverflow) |
| IL (1) | IL35151A (enrdf_load_stackoverflow) |
| NL (1) | NL7010779A (enrdf_load_stackoverflow) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3812362A (en) * | 1973-07-02 | 1974-05-21 | Honeywell Inc | Smoke detector circuit |
| CH586941A5 (enrdf_load_stackoverflow) * | 1975-07-25 | 1977-04-15 | Cerberus Ag | |
| US4228429A (en) * | 1977-12-29 | 1980-10-14 | Ricoh Company, Ltd. | Alarm system having phase-sensitive bridge circuit |
| US4401979A (en) * | 1981-02-11 | 1983-08-30 | General Signal Corporation | Electrical controls for ionization smoke detector |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3516083A (en) * | 1965-12-02 | 1970-06-02 | Denske Securitas As | Electric alarm system,preferably for a fire alarm |
| JPS446089Y1 (enrdf_load_stackoverflow) * | 1966-03-30 | 1969-03-05 |
-
1970
- 1970-07-21 NL NL7010779A patent/NL7010779A/xx unknown
- 1970-07-22 DE DE19702036447 patent/DE2036447B2/de active Pending
- 1970-07-22 CH CH1112370A patent/CH526178A/de not_active IP Right Cessation
- 1970-07-23 US US57554A patent/US3688119A/en not_active Expired - Lifetime
- 1970-07-23 FR FR7027246A patent/FR2055543A5/fr not_active Expired
- 1970-07-24 GB GB35971/70A patent/GB1282536A/en not_active Expired
- 1970-08-23 IL IL35151A patent/IL35151A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3688119A (en) | 1972-08-29 |
| IL35151A0 (en) | 1970-10-30 |
| DE2036447A1 (de) | 1971-02-25 |
| FR2055543A5 (enrdf_load_stackoverflow) | 1971-05-07 |
| GB1282536A (en) | 1972-07-19 |
| DE2036447B2 (de) | 1972-03-02 |
| CH526178A (de) | 1972-07-31 |
| NL7010779A (enrdf_load_stackoverflow) | 1971-01-26 |
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