DE355499C - Aneroid barometer with temperature compensation - Google Patents
Aneroid barometer with temperature compensationInfo
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details 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
- G01L19/04—Means for compensating for effects of changes of temperature, i.e. other than electric compensation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring 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
- G01L7/06—Measuring 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)
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)
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 |
-
0
- DE DEF49181D patent/DE355499C/en not_active Expired
Cited By (1)
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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