DE1766397B2 - Verfahren zur Erzeugung eines Alarmsignals und elektrische Schaltung zur Durchführung dieses Verfahrens - Google Patents
Verfahren zur Erzeugung eines Alarmsignals und elektrische Schaltung zur Durchführung dieses VerfahrensInfo
- Publication number
- DE1766397B2 DE1766397B2 DE1766397A DE1766397A DE1766397B2 DE 1766397 B2 DE1766397 B2 DE 1766397B2 DE 1766397 A DE1766397 A DE 1766397A DE 1766397 A DE1766397 A DE 1766397A DE 1766397 B2 DE1766397 B2 DE 1766397B2
- Authority
- DE
- Germany
- Prior art keywords
- signal voltage
- alarm
- signal
- amplifier
- voltage
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 19
- 230000008859 change Effects 0.000 claims description 36
- 230000007613 environmental effect Effects 0.000 claims description 13
- 230000007423 decrease Effects 0.000 claims description 11
- 230000004069 differentiation Effects 0.000 claims description 9
- 238000009795 derivation Methods 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 32
- 239000004020 conductor Substances 0.000 description 15
- 230000035945 sensitivity Effects 0.000 description 11
- 238000001514 detection method Methods 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004880 explosion Methods 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 5
- 230000000875 corresponding effect Effects 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000004043 responsiveness Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000005513 bias potential Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000112598 Pseudoblennius percoides Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
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- 239000000932 sedative agent Substances 0.000 description 1
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- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Detection Mechanisms (AREA)
- Burglar Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63890067A | 1967-05-16 | 1967-05-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE1766397A1 DE1766397A1 (de) | 1971-07-01 |
| DE1766397B2 true DE1766397B2 (de) | 1974-02-14 |
Family
ID=24561917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1766397A Pending DE1766397B2 (de) | 1967-05-16 | 1968-05-15 | Verfahren zur Erzeugung eines Alarmsignals und elektrische Schaltung zur Durchführung dieses Verfahrens |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3518654A (forum.php) |
| BE (1) | BE714927A (forum.php) |
| DE (1) | DE1766397B2 (forum.php) |
| FR (1) | FR1574846A (forum.php) |
| GB (1) | GB1219006A (forum.php) |
| NL (1) | NL145695B (forum.php) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2657457A1 (de) * | 1975-12-19 | 1977-06-30 | Svenska Rotor Maskiner Ab | Feuerueberwachungseinrichtung in einem drehspeicherluftvorwaermer |
| DE3924250A1 (de) * | 1989-07-21 | 1991-02-07 | Preussag Ag Feuerschutz | Branddetektor |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4399095A (en) * | 1977-12-16 | 1983-08-16 | Westinghouse Electric Corp. | Protection and control system for a nuclear reactor |
| US4459259A (en) * | 1982-06-29 | 1984-07-10 | The United States Of America As Represented By The United States Department Of Energy | Digital computer operation of a nuclear reactor |
| US4706069A (en) * | 1986-04-08 | 1987-11-10 | Rca Corporation | Security system |
| US5450066A (en) * | 1993-09-07 | 1995-09-12 | Simplex Time Recorder Company | Fire alarm heat detector |
| US5539381A (en) * | 1994-11-14 | 1996-07-23 | Sentrol, Inc. | Fixed threshold and rate of rise heat detector with dynamic thermal reference |
| DE60214310T2 (de) * | 2001-09-21 | 2007-09-13 | Hochiki Corp. | Feuerdetektor |
| CA2717860C (en) | 2008-03-07 | 2016-11-08 | Milwaukee Electric Tool Corporation | Battery pack for use with a power tool and a non-motorized sensing tool |
| US20090257469A1 (en) * | 2008-04-09 | 2009-10-15 | Jones Mike N | Infrared thermometer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2432145A (en) * | 1941-12-16 | 1947-12-09 | American District Telegraph Co | Fire detector of the thermocouple type |
| US2976523A (en) * | 1956-10-01 | 1961-03-21 | Avco Mfg Corp | Electronic circuit for anticipating change of magnitude of a quantity under investigation |
| US2901740A (en) * | 1956-11-23 | 1959-08-25 | Specialties Dev Corp | Electrical network automatically responsive to a change in condition |
| US3235857A (en) * | 1960-09-14 | 1966-02-15 | Specialties Dev Corp | Condition responsive system having means responsive to a negative or positive rate of change of a detected signal |
-
1967
- 1967-05-16 US US638900A patent/US3518654A/en not_active Expired - Lifetime
-
1968
- 1968-04-30 GB GB20331/68A patent/GB1219006A/en not_active Expired
- 1968-05-09 FR FR1574846D patent/FR1574846A/fr not_active Expired
- 1968-05-09 BE BE714927D patent/BE714927A/xx unknown
- 1968-05-14 NL NL686806823A patent/NL145695B/xx unknown
- 1968-05-15 DE DE1766397A patent/DE1766397B2/de active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2657457A1 (de) * | 1975-12-19 | 1977-06-30 | Svenska Rotor Maskiner Ab | Feuerueberwachungseinrichtung in einem drehspeicherluftvorwaermer |
| DE3924250A1 (de) * | 1989-07-21 | 1991-02-07 | Preussag Ag Feuerschutz | Branddetektor |
Also Published As
| Publication number | Publication date |
|---|---|
| NL145695B (nl) | 1975-04-15 |
| GB1219006A (en) | 1971-01-13 |
| US3518654A (en) | 1970-06-30 |
| NL6806823A (forum.php) | 1968-11-18 |
| FR1574846A (forum.php) | 1969-07-18 |
| BE714927A (forum.php) | 1968-11-12 |
| DE1766397A1 (de) | 1971-07-01 |
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