BE604675A - Improvements relating to temperature detectors and the electrical circuits used with them. - Google Patents

Improvements relating to temperature detectors and the electrical circuits used with them.

Info

Publication number
BE604675A
BE604675A BE604675A BE604675A BE604675A BE 604675 A BE604675 A BE 604675A BE 604675 A BE604675 A BE 604675A BE 604675 A BE604675 A BE 604675A BE 604675 A BE604675 A BE 604675A
Authority
BE
Belgium
Prior art keywords
electrical circuits
improvements relating
circuits used
temperature detectors
detectors
Prior art date
Application number
BE604675A
Other languages
French (fr)
Original Assignee
Graviner Manufacturing Co
Wilkinson Stord Ltd
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 Graviner Manufacturing Co, Wilkinson Stord Ltd filed Critical Graviner Manufacturing Co
Publication of BE604675A publication Critical patent/BE604675A/en

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
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Detection Mechanisms (AREA)
BE604675A 1960-06-09 1961-06-06 Improvements relating to temperature detectors and the electrical circuits used with them. BE604675A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2025360 1960-06-09
GB4239160 1960-12-09

Publications (1)

Publication Number Publication Date
BE604675A true BE604675A (en) 1961-10-02

Family

ID=26254557

Family Applications (1)

Application Number Title Priority Date Filing Date
BE604675A BE604675A (en) 1960-06-09 1961-06-06 Improvements relating to temperature detectors and the electrical circuits used with them.

Country Status (5)

Country Link
BE (1) BE604675A (en)
CH (1) CH376808A (en)
DE (1) DE1247180B (en)
NL (1) NL265773A (en)
SE (1) SE312089B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149167B (en) * 1983-11-04 1987-04-08 Graviner Ltd Electrical circuit arrangements in fire alarms

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE944111C (en) * 1953-04-03 1956-06-07 Anders Mathisen Temperature change detector
DE960320C (en) * 1954-05-07 1957-03-21 Graviner Manufacturing Co Temperature sensors, as well as methods and devices for their production
NL213762A (en) * 1956-01-17

Also Published As

Publication number Publication date
SE312089B (en) 1969-06-30
CH376808A (en) 1964-04-15
DE1247180B (en) 1967-08-10
NL265773A (en) 1900-01-01

Similar Documents

Publication Publication Date Title
DK103893C (en) Deflection circuit with transistors.
BE578696A (en) Semiconductor current limiter.
BE604924A (en) Improvements at the junction of metals
BE602704A (en) Thermocouple
BE592629A (en) Circuit element.
BE604675A (en) Improvements relating to temperature detectors and the electrical circuits used with them.
BE602265A (en) Heating element.
FR1291979A (en) Improvements relating to temperature detectors and the electrical circuits used with them
FR1312141A (en) Thermo-electric assembly
CH371279A (en) Addition or subtraction circuit
BE589694A (en) Improvements at the junction of metals.
FR1268629A (en) Thermopile improvements
SE301122B (en) Chlorination device
DK100072C (en) Chimney-free gas heater.
FR1220711A (en) Feedback circuit
FR1249614A (en) Self-adjusting camera
FR1260074A (en) Advanced Thermistor Bolometers
BE588865A (en) Advanced thermistor bolometers.
DK104855C (en) Heating element.
FR1282573A (en) Fan crusher
FR87065E (en) Television set
BE597616A (en) Electrophotographic equipment.
BE606311A (en) Improvements to thermistor bolometers.
FR1300722A (en) Improvements to thermistor bolometers
FR1256775A (en) Temperature regulator