GB1349304A - Heat detector - Google Patents
Heat detectorInfo
- Publication number
- GB1349304A GB1349304A GB1880971A GB1880971A GB1349304A GB 1349304 A GB1349304 A GB 1349304A GB 1880971 A GB1880971 A GB 1880971A GB 1880971 A GB1880971 A GB 1880971A GB 1349304 A GB1349304 A GB 1349304A
- Authority
- GB
- United Kingdom
- Prior art keywords
- temperature
- resistors
- bridge
- alarm
- resistor
- 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.)
- Expired
Links
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
- 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
- G01K3/005—Circuits arrangements for indicating a predetermined temperature
-
- 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
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/01—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using semiconducting elements having PN junctions
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Detection Mechanisms (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702027545 DE2027545B2 (de) | 1970-06-04 | 1970-06-04 | Schaltungsanordnung zur erfassung einer temperaturaenderung |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1349304A true GB1349304A (en) | 1974-04-03 |
Family
ID=5773065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1880971A Expired GB1349304A (en) | 1970-06-04 | 1971-06-03 | Heat detector |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT313755B (xx) |
BE (1) | BE768048A (xx) |
DE (1) | DE2027545B2 (xx) |
ES (1) | ES391503A1 (xx) |
FR (1) | FR2099748A5 (xx) |
GB (1) | GB1349304A (xx) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2627357C3 (de) * | 1976-06-18 | 1981-05-27 | Preussag Ag Feuerschutz, 2060 Bad Oldesloe | Temperaturmelder |
DE2933874C2 (de) * | 1978-08-24 | 1986-07-17 | Hochiki Corp., Tokio/Tokyo | Fühlvorrichtung zur Wahrnehmung von Temperaturunterschieden zwischen zwei Punkten |
DE3922234A1 (de) * | 1989-07-06 | 1991-01-10 | Kloeckner Becorit Gmbh | Temperaturueberwachung, insbesondere fuer das kuehlsystem eines verbrennungsmotors im untertaegigen grubenbetrieb |
DE4009011A1 (de) * | 1990-03-21 | 1991-10-24 | Trippe Industrieelectronic Gmb | Temperaturfuehler |
FR3083307B1 (fr) * | 2018-06-29 | 2021-09-24 | Sc2N Sa | Capteur de temperature |
-
1970
- 1970-06-04 DE DE19702027545 patent/DE2027545B2/de not_active Withdrawn
-
1971
- 1971-05-24 ES ES391503A patent/ES391503A1/es not_active Expired
- 1971-06-03 GB GB1880971A patent/GB1349304A/en not_active Expired
- 1971-06-03 BE BE768048A patent/BE768048A/xx unknown
- 1971-06-03 AT AT483071A patent/AT313755B/de not_active IP Right Cessation
- 1971-06-03 FR FR7120165A patent/FR2099748A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES391503A1 (es) | 1974-08-01 |
AT313755B (de) | 1974-03-11 |
FR2099748A5 (xx) | 1972-03-17 |
DE2027545A1 (de) | 1971-12-09 |
BE768048A (fr) | 1971-12-03 |
DE2027545B2 (de) | 1972-11-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |