IT970464B - Dispositivo di segnalazione delle variazioni di temperatura partico larmente adatto per la segnalazio ne di incendi - Google Patents
Dispositivo di segnalazione delle variazioni di temperatura partico larmente adatto per la segnalazio ne di incendiInfo
- Publication number
- IT970464B IT970464B IT31619/72A IT3161972A IT970464B IT 970464 B IT970464 B IT 970464B IT 31619/72 A IT31619/72 A IT 31619/72A IT 3161972 A IT3161972 A IT 3161972A IT 970464 B IT970464 B IT 970464B
- Authority
- IT
- Italy
- Prior art keywords
- signaling
- partically
- fire
- temperature variations
- signaling temperature
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
- H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
- H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
- H03K3/286—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable
- H03K3/2893—Bistables with hysteresis, e.g. Schmitt trigger
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K3/00—Thermometers giving results other than momentary value of temperature
- G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
- G01K3/10—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of time, e.g. reacting only to a quick change of temperature
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/30—Modifications for providing a predetermined threshold before switching
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Amplifiers (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7140728A FR2161126A5 (it) | 1971-11-15 | 1971-11-15 | |
| FR7147781A FR2166628A6 (it) | 1971-11-15 | 1971-12-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT970464B true IT970464B (it) | 1974-04-10 |
Family
ID=26216718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT31619/72A IT970464B (it) | 1971-11-15 | 1972-11-14 | Dispositivo di segnalazione delle variazioni di temperatura partico larmente adatto per la segnalazio ne di incendi |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3813565A (it) |
| JP (1) | JPS4868287A (it) |
| BE (1) | BE791365A (it) |
| CA (1) | CA987760A (it) |
| CH (1) | CH567246A5 (it) |
| DE (1) | DE2256009A1 (it) |
| FR (1) | FR2166628A6 (it) |
| GB (1) | GB1421337A (it) |
| IT (1) | IT970464B (it) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5525625B2 (it) * | 1974-05-13 | 1980-07-07 | ||
| DE2635640A1 (de) * | 1975-08-11 | 1977-03-03 | Wormald Int | Waerme-detektoreinrichtung |
| EP0092145B1 (en) * | 1982-04-21 | 1988-06-22 | Kabushiki Kaisha Toshiba | Transistor circuit |
| DE3710871A1 (de) * | 1987-04-01 | 1988-10-20 | Standard Elektrik Lorenz Ag | Schaltung zur formung einer messsignalspannung in ein rechtecksignal |
| KR100854463B1 (ko) | 2007-05-21 | 2008-08-27 | 주식회사 하이닉스반도체 | 온도센서회로 및 이를 이용한 반도체 메모리 장치 |
| JP6218404B2 (ja) * | 2013-03-18 | 2017-10-25 | エスアイアイ・セミコンダクタ株式会社 | 受光回路 |
| CN105976551B (zh) * | 2016-06-22 | 2018-05-15 | 中铁二局集团勘测设计院有限责任公司 | 一种基于bim的火灾报警系统 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3296546A (en) * | 1964-08-31 | 1967-01-03 | Jr William J Schneider | Transistor circuit constructions for active type band pass filters |
| US3501711A (en) * | 1968-11-12 | 1970-03-17 | Textron Inc | Zero-voltage driven-cable amplifier |
| US3654468A (en) * | 1970-03-11 | 1972-04-04 | Industrial Nucleonics Corp | Radiation measurement system with mosfet electrometer circuit which is protected against voltage transients |
-
0
- BE BE791365D patent/BE791365A/xx unknown
-
1971
- 1971-12-31 FR FR7147781A patent/FR2166628A6/fr not_active Expired
-
1972
- 1972-10-24 CH CH1552972A patent/CH567246A5/xx not_active IP Right Cessation
- 1972-11-13 US US00305680A patent/US3813565A/en not_active Expired - Lifetime
- 1972-11-14 CA CA156,395A patent/CA987760A/en not_active Expired
- 1972-11-14 IT IT31619/72A patent/IT970464B/it active
- 1972-11-15 DE DE2256009A patent/DE2256009A1/de active Pending
- 1972-11-15 JP JP47114650A patent/JPS4868287A/ja active Pending
- 1972-11-15 GB GB5269072A patent/GB1421337A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH567246A5 (it) | 1975-09-30 |
| BE791365A (fr) | 1973-03-01 |
| DE2256009A1 (de) | 1973-05-17 |
| FR2166628A6 (it) | 1973-08-17 |
| GB1421337A (en) | 1976-01-14 |
| US3813565A (en) | 1974-05-28 |
| JPS4868287A (it) | 1973-09-18 |
| CA987760A (en) | 1976-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SE385939B (sv) | Anordning for forbindning av tva profillister | |
| IT941336B (it) | Sistema e procedimento per il controllo della temperatura | |
| IT948971B (it) | Dispositivo per misurare la temperatura di un metallo fus | |
| AR193370A1 (es) | Procedimiento para la preparacion de inhibidores para hidrolasas de glicosidos | |
| ATA386471A (de) | Kuhlsystem | |
| BR7208338D0 (pt) | Bloco de conexao e dispositivo de propagacao para iniciacao de cordel detonante | |
| AR201825A1 (es) | Dispositivo para el enfriamiento de varillas laminadas en caliente | |
| AR193228A1 (es) | Dispositivo detector de temperatura | |
| IT970464B (it) | Dispositivo di segnalazione delle variazioni di temperatura partico larmente adatto per la segnalazio ne di incendi | |
| BE772705A (fr) | Echangeurs de chaleur | |
| IT998507B (it) | Indicatori di temperatura | |
| BE763471A (fr) | Tube pour echangeur de chaleur | |
| FI53441C (fi) | Anordning foer omlastning av godbehaollare | |
| AT323445B (de) | Temperaturanzeiger | |
| BE776630A (fr) | Echangeurs de chaleur | |
| BG20585A3 (bg) | Метод за получаване на заместени n-хидрокси-алкил-2-ариламино-имидазолини | |
| IT942106B (it) | Apparecchio per la fabbricazione di ghiaccio | |
| AT299997B (de) | Metallrohr zur Wärmeübertragung | |
| AT318162B (de) | Einrichtung zur Wärmeübertragung | |
| DK136795C (da) | Transformator med vaeskekoeling | |
| DK140551C (da) | Fremgangsmaade til fremstilling af diazabicycloalkanderivater | |
| AR194903A1 (es) | Procedimiento para la elaboracion de nuevos halogeno-esteroides | |
| BE773241A (fr) | Tube pour echangeur de chaleur | |
| AR202882A1 (es) | Procedimiento para la fabricacion de derivados de 1-o-carbamoilmetoxifenoxi-3-amino-2-propanol | |
| DK135892B (da) | Fremgangsmade til fremstilling af natriumaluminiumhydrid |