GB1349304A - Heat detector - Google Patents

Heat detector

Info

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
Application number
GB1880971A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Preussag AG Feuerschutz
Original Assignee
Preussag AG Feuerschutz
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Preussag AG Feuerschutz filed Critical Preussag AG Feuerschutz
Publication of GB1349304A publication Critical patent/GB1349304A/en
Expired legal-status Critical Current

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)
GB1880971A 1970-06-04 1971-06-03 Heat detector Expired GB1349304A (en)

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 (de)
BE (1) BE768048A (de)
DE (1) DE2027545B2 (de)
ES (1) ES391503A1 (de)
FR (1) FR2099748A5 (de)
GB (1) GB1349304A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
FR2099748A5 (de) 1972-03-17
BE768048A (fr) 1971-12-03
AT313755B (de) 1974-03-11
DE2027545B2 (de) 1972-11-23
ES391503A1 (es) 1974-08-01
DE2027545A1 (de) 1971-12-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee