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DE355499C - Aneroid barometer with temperature compensation - Google Patents

Aneroid barometer with temperature compensation

Info

Publication number
DE355499C
DE355499C DEF49181D DEF0049181D DE355499C DE 355499 C DE355499 C DE 355499C DE F49181 D DEF49181 D DE F49181D DE F0049181 D DEF0049181 D DE F0049181D DE 355499 C DE355499 C DE 355499C
Authority
DE
Germany
Prior art keywords
temperature compensation
aneroid barometer
barometer
temperature
sets
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
DEF49181D
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.)
Fuess Vorm J G Greiner Jr & Ge
Original Assignee
Fuess Vorm J G Greiner Jr & Ge
Publication date
Priority to DEF49181D priority Critical patent/DE355499C/en
Application granted granted Critical
Publication of DE355499C publication Critical patent/DE355499C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/04Means for compensating for effects of changes of temperature, i.e. other than electric compensation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L7/00Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
    • G01L7/02Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
    • G01L7/06Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the bellows type

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Description

Arieroidbarometer mit Temperaturausgleich. Bei Aneroidbarometerkapseln, die aus mehreren Dosen zu einem harmonikaartigen System miteinander verbunden sind und eine einzige durchgehende Gegenfeder im Innern aufweisen, ist es mehr oder weniger vom Zufall abhängig, wenn ein solches Dosensystem ,gegen Temperatureinflüsse innerhalb praktischer Grenzen unempfindlich ist. Wenn ein Dosensatz fertig ist, also evakuiert ist, so läßt sich eine nachträgliche Verbesserung desselben mit Bezug auf sein Verhalten gegenüber Temperatureinflüssen nicht mehr vornehmen.Arieroid barometer with temperature compensation. For aneroid barometer capsules, which are connected to one another from several cans to form a harmonica-like system and have a single continuous return spring inside, it is more or less depending on chance, if such a can system, against temperature influences within is insensitive to practical limits. When a set of cans is ready, evacuated is, a subsequent improvement can be made with regard to its behavior Do not do this against temperature influences.

Der Gegenstand vorliegender Erfindung behebt diesen Übelstand in folgender Weise Es werden zwei für sich selbständige Dosensätze a und b, bestehend aus je einer oder mehreren Dosenkammern d mit Innenfeder f zu einem Satz vereinigt bzw. bei c zusammengeschraubt. Der eine Satz, z. B. a, ist so weit evakuiert, daß er bei Erwärmung aber gleichbleibendem Außendruck einen Minusausschlag zeigt, während bei dem Satz b die Evakuierung nicht bis zur vollen Luftleere getrieben ist und er deshalb bei Erwärmung aber gleichbleibendem Außendruck einen Plusausschlag zeigt. Eine Vereinigung beider Sätze a und b zeigt demgemäß bei richtiger Abstufung der Innenluftleere bei Temperaturänderung keinen Ausschlag. Bei Massenherstellung solcher-Dosensätze wird man so verfahren, daß man z. B. eine Anzahl'Einzeldosen ganz entleert, während die anderen Dosen mit mehr oder weniger großer Luftleere angefertigt werden, so daß man in der Lage ist, Dosensätze a -E- b so zusammenzustellen, daß ein guter Temperaturausgleich erreicht wird.The subject matter of the present invention remedies this drawback in the following way: Two independent can sets a and b, each consisting of one or more can chambers d with inner spring f, are combined to form a set or screwed together at c. One sentence, e.g. B. a, is evacuated to such an extent that it shows a minus deflection when heated but constant external pressure, while in sentence b the evacuation is not driven to a full evacuation and it therefore shows a positive deflection when heated but constant external pressure. A combination of the two sentences a and b accordingly shows no deflection with a correct gradation of the internal air void with a change in temperature. In the case of mass production of such-can sets, the procedure is such that one z. B. a number of single doses completely emptied, while the other doses are made with a more or less large air void, so that one is able to put together can sets a -E- b so that a good temperature equalization is achieved.

Claims (1)

PATENT-ANsPRUcH: Aneroidbarometer mit Temperaturausgleich, dadurch gekennzeichnet, daß es zwei oder mehrere in bekannter Weise mit Innenspiralfeder (f) versehene Einzeldosensätze (a, b) mit derartig ungleicher Luftleere aufweist, daß durch Temperaturänderung keine nennenswerte Dehnung des Gesamtdosensatzes (a+ b) eintritt.PATENT CLAIM: Aneroid barometer with temperature compensation, characterized in that it has two or more individual can sets (a, b) provided in a known manner with internal spiral springs (f) with such an unequal air void that no significant expansion of the total can set (a + b) occurs due to a change in temperature .
DEF49181D Aneroid barometer with temperature compensation Expired DE355499C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF49181D DE355499C (en) Aneroid barometer with temperature compensation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF49181D DE355499C (en) Aneroid barometer with temperature compensation

Publications (1)

Publication Number Publication Date
DE355499C true DE355499C (en) 1922-06-27

Family

ID=7102794

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF49181D Expired DE355499C (en) Aneroid barometer with temperature compensation

Country Status (1)

Country Link
DE (1) DE355499C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763373C (en) * 1936-05-05 1953-02-09 Daimler Benz Ag Control device for internal combustion engines with or without supercharging, especially for those in aircraft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763373C (en) * 1936-05-05 1953-02-09 Daimler Benz Ag Control device for internal combustion engines with or without supercharging, especially for those in aircraft

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