DE466476C - Radiation pyrometer with compensation device - Google Patents

Radiation pyrometer with compensation device

Info

Publication number
DE466476C
DE466476C DEH109402D DEH0109402D DE466476C DE 466476 C DE466476 C DE 466476C DE H109402 D DEH109402 D DE H109402D DE H0109402 D DEH0109402 D DE H0109402D DE 466476 C DE466476 C DE 466476C
Authority
DE
Germany
Prior art keywords
room temperature
radiation pyrometer
compensation device
radiation
temperature
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
DEH109402D
Other languages
German (de)
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.)
ABB Training Center GmbH and Co KG
Original Assignee
Hartmann and Braun AG
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 Hartmann and Braun AG filed Critical Hartmann and Braun AG
Priority to DEH109402D priority Critical patent/DE466476C/en
Application granted granted Critical
Publication of DE466476C publication Critical patent/DE466476C/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
    • G01K1/20—Compensating for effects of temperature changes other than those to be measured, e.g. changes in ambient temperature
    • G01K1/24—Compensating for effects of temperature changes other than those to be measured, e.g. changes in ambient temperature by means of compounded strips or plates, e.g. by bimetallic strips

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radiation Pyrometers (AREA)

Description

Strahlungspyrometer mit Kompensationseinrichtung Bei Strahlungspyrometern entstehen Meßfehler, wenn die Raumtemperatur während der Messung eine andere ist als bei der Eichung. Bei Strahlungspyrometern z. B., deren temperaturempfindliches Element ein Thermoelement ist, wird die Übertemperatur der warmen Lötstelle um so kleiner, j e höher die Raumtemperatur ist. Ist ein solches Strahlungspyrometer bei einer bestimmten Raumtemperatur, etwa 2o° C, geeicht, so wird es infolgedessen bei höherer Temperatur zu niedrige Temperaturen anzeigen.Radiation pyrometer with compensation device For radiation pyrometers measurement errors occur if the room temperature is different during the measurement than with the calibration. For radiation pyrometers z. B., their temperature sensitive If the element is a thermocouple, the excess temperature of the warm solder joint will be so smaller, the higher the room temperature. Is such a radiation pyrometer at A certain room temperature, about 20 ° C, is calibrated, so it is consequently at higher temperature indicate temperatures that are too low.

Es sind mehrere Vorrichtungen bekannt, durch die der durch Änderung der Raumtemperatur entstehende Fehler kompensiert wird. Erfindungsgemäß wird durch Anbringung einer veränderlichen Blende o. dgl. die Strahlungsmenge, welche auf das Thermoelement fällt, entsprechend der Raumtemperatur verändert, und zwar in solchem Maße, daß im Endresultat die Anzeige des Strahlungspyrometers unabhängig von der Raumtemperatur ist. In dem erwähnten Falle eines Strahlungspyrometers mit Thermoelement z. B. wird man bei hoher Raumtemperatur durch Vergrößerung oder Verschiebung einer Blende o. dgl. die auf die warme Lötstelle auftreffende Strahlungsmenge derart vergrößern, daß dieselbe Thermokraft entsteht wie bei der Eichungstemperatur. Zweckmäßig ist es, die Verstellung der Blende selbsttätig durch ein temperaturempfindliches Organ, z. B. durch einen Bimetallstreifen, bewirken zu lassen.Several devices are known by which the by change the room temperature is compensated for errors. According to the invention is by Attachment of a variable aperture or the like. The amount of radiation that is on the Thermocouple falls, changes according to the room temperature, in such a way Measure that in the end result the display of the radiation pyrometer is independent of the Room temperature is. In the case mentioned, a radiation pyrometer with a thermocouple z. B. one becomes at high room temperature by enlarging or moving a Cover or the like increase the amount of radiation hitting the warm solder joint in such a way that that the same thermal force arises as at the calibration temperature. Is expedient it, the adjustment of the aperture automatically by a temperature-sensitive organ, z. B. by a bimetal strip to cause.

Claims (1)

PATENTANSPRÜCHE: z. Strahlungspyrometer mit Kompensationseinrichtung, dadurch gekennzeichnet, daß die Größe einer in den Strahlengang eingeschalteten Blende entsprechend der jeweiligen Raumtemperatur einstellbar ist, so daß die Anzeige des Instruments für eine bestimmte Temperatur des strahlenden Körpers bei allen Raumtemperaturen die gleiche ist. z. Strahlungspyrometer nach Anspruch z, dadurch gekennzeichnet, daß die Blende selbsttätig durch ein von der Raumtemperatur beeinflußtes Organ einstellbar ist.PATENT CLAIMS: e.g. Radiation pyrometer with compensation device, characterized in that the size of a switched in the beam path Aperture is adjustable according to the respective room temperature, so that the display of the instrument for a certain temperature of the radiating body at all Room temperature is the same. z. Radiation pyrometer according to claim z, characterized characterized in that the diaphragm is automatically influenced by a room temperature Organ is adjustable.
DEH109402D 1926-12-25 1926-12-25 Radiation pyrometer with compensation device Expired DE466476C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH109402D DE466476C (en) 1926-12-25 1926-12-25 Radiation pyrometer with compensation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH109402D DE466476C (en) 1926-12-25 1926-12-25 Radiation pyrometer with compensation device

Publications (1)

Publication Number Publication Date
DE466476C true DE466476C (en) 1928-10-06

Family

ID=7170800

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH109402D Expired DE466476C (en) 1926-12-25 1926-12-25 Radiation pyrometer with compensation device

Country Status (1)

Country Link
DE (1) DE466476C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1099758B (en) * 1958-08-18 1961-02-16 Licentia Gmbh Arrangement for measuring the temperature on rotating bodies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1099758B (en) * 1958-08-18 1961-02-16 Licentia Gmbh Arrangement for measuring the temperature on rotating bodies

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