GB633698A - Improvements in or relating to systems for measuring or controlling temperatures at a distance - Google Patents

Improvements in or relating to systems for measuring or controlling temperatures at a distance

Info

Publication number
GB633698A
GB633698A GB26848/47A GB2684847A GB633698A GB 633698 A GB633698 A GB 633698A GB 26848/47 A GB26848/47 A GB 26848/47A GB 2684847 A GB2684847 A GB 2684847A GB 633698 A GB633698 A GB 633698A
Authority
GB
United Kingdom
Prior art keywords
vessel
heat
temperature
vessels
liquid
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
GB26848/47A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB633698A publication Critical patent/GB633698A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/02—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using evaporation or sublimation, e.g. by observing boiling
    • G01K11/04—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using evaporation or sublimation, e.g. by observing boiling from material contained in a hollow body having parts which are deformable or displaceable under the pressure developed by the vapour
    • 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
    • G05D23/275—Control of temperature characterised by the use of electric means with sensing element expanding, contracting, or fusing in response to changes of temperature
    • G05D23/27535—Details of the sensing element
    • G05D23/27537—Details of the sensing element using expansible fluid

Abstract

633,698. Heat-transmitting media. NAAMLOOZE VENNOOTSCHAP PHILIP'S GLOEILAMPENFABRIEKEN. Sept. 6, 1946, No. 26848. Convention date, March 10, 1943. [Class 64(ii)] [Also in Group XX] The temperature of an object is controlled at a remote point by transferring heat from the object to a thermostat, or vice versa, by means of an evaporating and condensing liquid contained in a conduit having closed ends. As shown in Fig. 1 the apparatus comprises two interconnected closed vessels, the one 13 in contact with the furnace 10 whose temperature is to be measured, the other 14 in contact with a thermometer 15, the arrangement being such that changes of heat in the furnace 10 cause corresponding evaporation or condensation of the liquid in the vessel 13 with reciprocal condensation or evaporation in the vessel 14, the heat thus released or absorbed being indicated on the thermometer 15 which may be replaced by a thermostat. The levels of the two vessels 13, 14 are arranged so that condensed liquid returns to the vessel from which it is normally evaporated, thus, as shown, vessel 14 is higher than vessel 13. If however the temperature of the object 10 is normally below ambient temperature the vessel 14 is arranged to be lower than vessel 13. Alternatively the two vessels may be at the same level but so designed that an excess quantity of liquid in the one is returned to the other in either direction.
GB26848/47A 1943-03-10 1946-09-06 Improvements in or relating to systems for measuring or controlling temperatures at a distance Expired GB633698A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL633698X 1943-03-10

Publications (1)

Publication Number Publication Date
GB633698A true GB633698A (en) 1949-12-19

Family

ID=19788811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26848/47A Expired GB633698A (en) 1943-03-10 1946-09-06 Improvements in or relating to systems for measuring or controlling temperatures at a distance

Country Status (1)

Country Link
GB (1) GB633698A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1016101A3 (en) * 2004-06-28 2006-03-07 L Air Liquide Belge Device and method for detection of change of temperature, in particular for leak detection of liquid cryogenic.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1016101A3 (en) * 2004-06-28 2006-03-07 L Air Liquide Belge Device and method for detection of change of temperature, in particular for leak detection of liquid cryogenic.

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