FR2363829A1 - ENERGY CONTROLLER CONTROL DEVICE - Google Patents

ENERGY CONTROLLER CONTROL DEVICE

Info

Publication number
FR2363829A1
FR2363829A1 FR7718355A FR7718355A FR2363829A1 FR 2363829 A1 FR2363829 A1 FR 2363829A1 FR 7718355 A FR7718355 A FR 7718355A FR 7718355 A FR7718355 A FR 7718355A FR 2363829 A1 FR2363829 A1 FR 2363829A1
Authority
FR
France
Prior art keywords
control device
signal
producing
circuit
output signal
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.)
Granted
Application number
FR7718355A
Other languages
French (fr)
Other versions
FR2363829B1 (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.)
Ardco Inc
Original Assignee
Ardco Inc
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 Ardco Inc filed Critical Ardco Inc
Publication of FR2363829A1 publication Critical patent/FR2363829A1/en
Application granted granted Critical
Publication of FR2363829B1 publication Critical patent/FR2363829B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D22/00—Control of humidity
    • G05D22/02—Control of humidity characterised by the use of electric means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/121—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid for determining moisture content, e.g. humidity, of the fluid

Abstract

L'invention concerne un dispositif de commande d'apport d'énergie. Le dispositif comporte un circuit de détection 50, un circuit de commutation 52 et une source de courant 48 isolée de ces deux circuits. Le circuit de détection 50 comporte un capteur 35 à résistance variable, un détecteur 68 pour détecter les variations de cette résistance et produire un signal de sortie représentatif, un circuit générateur de signal 78 pour produire un signal prédéterminé lorsque le signal de sortie atteint une valeur donnée et un coupleur optique à diode électroluminescente 86 qui transmet le signal à un phototransistor 92 qui commande le circuit de commutation 52. L'invention est applicable, notamment, à un dispositif de commande du chauffage des parties transparentes d'armoires réfrigérées pour éviter qu'elles s'embuent ou se givrent.The invention relates to an energy supply control device. The device comprises a detection circuit 50, a switching circuit 52 and a current source 48 isolated from these two circuits. The detection circuit 50 includes a variable resistance sensor 35, a detector 68 for detecting changes in this resistance and producing a representative output signal, a signal generator circuit 78 for producing a predetermined signal when the output signal reaches a value data and a light-emitting diode optical coupler 86 which transmits the signal to a phototransistor 92 which controls the switching circuit 52. The invention is applicable, in particular, to a device for controlling the heating of transparent parts of refrigerated cabinets to prevent 'they fog or freeze.

FR7718355A 1976-09-01 1977-06-15 ENERGY CONTROLLER CONTROL DEVICE Granted FR2363829A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71980476A 1976-09-01 1976-09-01

Publications (2)

Publication Number Publication Date
FR2363829A1 true FR2363829A1 (en) 1978-03-31
FR2363829B1 FR2363829B1 (en) 1983-03-11

Family

ID=24891430

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7718355A Granted FR2363829A1 (en) 1976-09-01 1977-06-15 ENERGY CONTROLLER CONTROL DEVICE

Country Status (12)

Country Link
JP (1) JPS5331077A (en)
AU (1) AU511762B2 (en)
BE (1) BE856120A (en)
CA (1) CA1083690A (en)
DE (1) DE2722410A1 (en)
DK (1) DK217777A (en)
FR (1) FR2363829A1 (en)
GB (1) GB1553751A (en)
IT (1) IT1079851B (en)
NL (1) NL7706262A (en)
NO (1) NO152957C (en)
SE (1) SE432015B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0144358A1 (en) * 1983-05-15 1985-06-19 Intersensor SA Moisture sensor
FI831862L (en) * 1983-05-25 1984-11-26 Itumic Oy FOERFARANDE FOER REGLERING AV TEMPERATUR OCH FUKTIGHET.
KR880004363A (en) * 1986-09-17 1988-06-03 케네쓰 제이 캄머라드 Condensation Prevention Device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1308552A (en) * 1969-09-08 1973-02-21 Honeywell Inc Programmed thermostat systems
US3696360A (en) * 1971-06-16 1972-10-03 Vapor Corp Impending condensation alarm
US3859502A (en) * 1974-02-11 1975-01-07 Anthony S Mfg Co Defrosting system for refrigerator doors

Also Published As

Publication number Publication date
GB1553751A (en) 1979-09-26
NL7706262A (en) 1978-03-03
IT1079851B (en) 1985-05-13
CA1083690A (en) 1980-08-12
NO152957B (en) 1985-09-09
SE432015B (en) 1984-03-12
AU2551277A (en) 1978-11-30
BE856120A (en) 1977-10-17
AU511762B2 (en) 1980-09-04
NO771760L (en) 1978-03-02
NO152957C (en) 1985-12-18
DK217777A (en) 1978-03-02
FR2363829B1 (en) 1983-03-11
JPS5331077A (en) 1978-03-23
DE2722410A1 (en) 1978-03-02
SE7705904L (en) 1978-03-02

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Legal Events

Date Code Title Description
ST Notification of lapse