DE892832C - Temperature measuring and control device - Google Patents

Temperature measuring and control device

Info

Publication number
DE892832C
DE892832C DED11029A DED0011029A DE892832C DE 892832 C DE892832 C DE 892832C DE D11029 A DED11029 A DE D11029A DE D0011029 A DED0011029 A DE D0011029A DE 892832 C DE892832 C DE 892832C
Authority
DE
Germany
Prior art keywords
control device
fluctuations
temperature measuring
air pressure
measuring
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
DED11029A
Other languages
German (de)
Inventor
Hermann Dr Holzmann
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
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 Degussa GmbH filed Critical Degussa GmbH
Priority to DED11029A priority Critical patent/DE892832C/en
Application granted granted Critical
Publication of DE892832C publication Critical patent/DE892832C/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
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G01K5/32—Measuring temperature based on the expansion or contraction of a material the material being a fluid contained in a hollow body having parts which are deformable or displaceable

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Measuring Fluid Pressure (AREA)

Description

rn der Patentschrift 882 oo8 ist ein Temperaturmeß- und Regelgerät beschrieben, bei dem zurTemperaturmessung die Volumenänderung einer in einem Temperaturfühler befindlichen Gasmenge dient, wobei die Volumenänderung über eine Röhrenfeder mit besonders kleinem Volumen auf die Anzeiigevorrichtungen übertragen wird. Dabei werden die ,Schwankungen der Außentemperatur und des Luftdrucks automatisch ausgeglichen. Zum Ausgleich der Schwankungen dient gemäß Haupt patent ein druckempfindliches Organ, z. B. eine Barometerdose, die auf die bewegliche Meßskala wirkt.The patent specification 882 008 describes a temperature measuring and control device described in which for temperature measurement the volume change in a temperature sensor The amount of gas located is used, with the change in volume via a tubular spring with particularly small volume is transferred to the display devices. Be there which automatically compensates for fluctuations in outside temperature and air pressure. According to the main patent, a pressure-sensitive organ is used to compensate for the fluctuations z. B. a barometer that acts on the movable measuring scale.

Es wurde nun gefunden, daß man die Kompensation des Einflusses von Luftdruckschwankungen in einfacher und betriebssicherer Weise auch dadurch vornehmen kann, daß die diesem Zweck dienende druckempfindliche Vorrichtung, also z. B. eine Barometer dose, nicht auf eine bewegliche Skala wirkt, sondern unmittelbar in den Übertragungsweg zwischen der der Volumenänderung unterworfenen Röhrenfeder und dem Meßzeiger eingeschaltet wird. Die beschriebene Ausführungsform bietet den Vorteil, daß neben einer einfachen konstruktiven Ausbildung eine wesentliche Erhöhung der Meßempfindlichkeit gewährleistet wird. Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt, und zwar zeigt Abb. I die Übertragungsvorr ichtung in der Aufsicht und Ahb. 2 im Seitenschnitt. It has now been found that one can compensate for the influence of Also make air pressure fluctuations in a simple and operationally reliable manner thereby can that the pressure-sensitive device serving this purpose, so z. Legs Barometer dose, does not act on a movable scale, but directly in the Transmission path between the tubular spring subjected to the change in volume and the Pointer is switched on. The embodiment described has the advantage that in addition to a simple constructional training a substantial increase in Measurement sensitivity is guaranteed. An embodiment of the invention is shown in the drawing, namely Fig. I shows the transmission device in supervision and Ahb. 2 in side cut.

In den Abbildungen bedeutet 1 die zu einem Hand zusammengewalzteRöhrenfeder, m das druckempfindliche Organ, z. B. eine Barometerdose. In the figures, 1 denotes the tubular spring rolled into one hand, m the pressure-sensitive organ, e.g. B. a barometer box.

Diese ist erfindungsgemäß zwischen das Ende der Röhrenfeder I und den drehbar gelagerten Hebel n geschaltet und überträgt die Schwankungen des Luftdrucks über den Hebel in mit Hilfe der Barometerkette o unmittelbar auf den JWeßzeiger g bzw. korrigiert die Einwirkung der Röhrenfeder I auf den MeBzeiger g entsprechend dem jeweils herrschenden äußeren Luftdruck.This is according to the invention between the end of the tubular spring I and the pivoted lever n is switched and transmits the fluctuations in air pressure over the lever in with the help of the barometer chain o directly on the white pointer g or corrects the action of the tubular spring I on the measuring pointer g accordingly the prevailing external air pressure.

Claims (1)

PATENTANSPRUCH: Temperaturmeß- und Regelgerät, bei dem die Volumenänderung einer in einem Temperaturfühler befindlichen Gasmenge über eine Röhrenfeder unter Ausschaltung des Einflusses von Schwankungen der Außentemperatur und des Luftdrucks übertragen wird, nach Patent 882 oo8, dadurch gekennzeichnet, daß zur Ausschaltung der durch die Schwankungen des äußeren Luftdrucks hervorgerufenen itnderungen der Zeigerstellung zwischen dem Ende der Röhrenfeder und dem -Meßzeiger ein druckempfindliches Organ, vorzugsweise eine Barometerdose, angeordnet ist. PATENT CLAIM: Temperature measuring and control device in which the volume change a quantity of gas in a temperature sensor via a tubular spring Elimination of the influence of fluctuations in outside temperature and air pressure is transferred, according to patent 882 008, characterized in that for switching off the changes caused by the fluctuations in the external air pressure Pointer position between the end of the tube spring and the measuring pointer a pressure-sensitive Organ, preferably a barometer box, is arranged.
DED11029A 1950-10-01 1950-10-01 Temperature measuring and control device Expired DE892832C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED11029A DE892832C (en) 1950-10-01 1950-10-01 Temperature measuring and control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED11029A DE892832C (en) 1950-10-01 1950-10-01 Temperature measuring and control device

Publications (1)

Publication Number Publication Date
DE892832C true DE892832C (en) 1953-10-12

Family

ID=7033590

Family Applications (1)

Application Number Title Priority Date Filing Date
DED11029A Expired DE892832C (en) 1950-10-01 1950-10-01 Temperature measuring and control device

Country Status (1)

Country Link
DE (1) DE892832C (en)

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