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ES294649A1 - Improvements relating to feed-back arrangements for air temperature-control systems - Google Patents

Improvements relating to feed-back arrangements for air temperature-control systems

Info

Publication number
ES294649A1
ES294649A1 ES0294649A ES294649A ES294649A1 ES 294649 A1 ES294649 A1 ES 294649A1 ES 0294649 A ES0294649 A ES 0294649A ES 294649 A ES294649 A ES 294649A ES 294649 A1 ES294649 A1 ES 294649A1
Authority
ES
Spain
Prior art keywords
heater
feed
air temperature
control systems
another
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
ES0294649A
Other languages
Spanish (es)
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.)
Stone J and Co Ltd
Original Assignee
Stone J and Co 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 Stone J and Co Ltd filed Critical Stone J and Co Ltd
Publication of ES294649A1 publication Critical patent/ES294649A1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
    • G05D23/303—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature using a sensing element having a resistance varying with temperature, e.g. thermistor
    • 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
    • G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/1928—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperature of one space
    • 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)
  • Control Of Temperature (AREA)

Abstract

A temperature sensing element 4a forming one arm of a temperature sensitive bridge has, connected in series, another sensitive resistor 46 enclosed with and influenced by a bias heater 5 energized at the same time as a main heater 1, through an amplifier 7 and a relay 3a-c. The relay 3a-c may be replaced by two relays controlling an actuator varying the proportions of hot and cold air, a second bias heater, influencing another temperature sensitive resistor 4c (Figs. 5 and 6 not shown) in another arm of the bridge circuit, being energized in the less heat condition. The heater 5 and resistor 4b may be wound on the same former but electrically insulated from each other. Specification 902,896 is referred to.
ES0294649A 1962-12-20 1963-12-19 Improvements relating to feed-back arrangements for air temperature-control systems Expired ES294649A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB48207/62A GB1010925A (en) 1962-12-20 1962-12-20 Improvements relating to feed-back arrangements for air temperature-control systems

Publications (1)

Publication Number Publication Date
ES294649A1 true ES294649A1 (en) 1964-04-01

Family

ID=10447762

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0294649A Expired ES294649A1 (en) 1962-12-20 1963-12-19 Improvements relating to feed-back arrangements for air temperature-control systems

Country Status (2)

Country Link
ES (1) ES294649A1 (en)
GB (1) GB1010925A (en)

Also Published As

Publication number Publication date
GB1010925A (en) 1965-11-24

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