DE621017C - Device for displaying and registering the partial pressure of water vapor in the air - Google Patents
Device for displaying and registering the partial pressure of water vapor in the airInfo
- Publication number
- DE621017C DE621017C DEL82773D DEL0082773D DE621017C DE 621017 C DE621017 C DE 621017C DE L82773 D DEL82773 D DE L82773D DE L0082773 D DEL0082773 D DE L0082773D DE 621017 C DE621017 C DE 621017C
- Authority
- DE
- Germany
- Prior art keywords
- water vapor
- air
- registering
- displaying
- partial pressure
- 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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/10—Measuring moisture content, e.g. by measuring change in length of hygroscopic filament; Hygrometers
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
Vorrichtung zum Anzeigen und Registrieren des Wasserdampfteildruckes der Luft Für meteorologische` Messrungen sind Geräte bekannt, die durch Hintereinanders:chaltung thermometrischer und hygroskopischer Meßglieder an einen gemeinsamen Zeiger wenigstens für gewisse Witterungsvorgänge die Tendenz der Dampfdruckänderung ablesbar machen, ohne daß aber eine unmittelbare Messung des Wass:erdampfteildruckes damit möglich ist; dieser ist vielmehr- nur durch langwierige Rechnungen aus: Temperatur- und Feuchtigkeitsanzeigen zu ermitteln. Ähnliche Geräte, bei denen ein . hygroskopisches Meßglied durch Zuschaltung wes thermometrischen Meßgliedes eine Korrektur für die Änderungen seiner hygroskopischen Eigenschaften in Abhängigkeit von der Temperatur erfährt, sind auch für die Einregelung bestimmter Feuchtigkeitsgehalte - bekannt, aber sie ermöglichen kein Ablesen; außerdem sind bei ihnen nicht die Wasserdampfteildrucke, sondern nur die relativen Fe7.uchtigkeitsgehalte einregelbar. Dieses Gerät kommt daher für meteorologische Messungen nicht in Frage, und insbesondere kann es Wasserdampfteildrucke überhaupt nicht anzeigen.Device for displaying and registering the partial pressure of water vapor of the air For meteorological measurements, devices are known which are connected in series thermometric and hygroscopic measuring elements to a common pointer at least make the tendency of the vapor pressure change readable for certain weather processes, but without it being possible to measure the partial water pressure directly is; Rather, this is only made up of lengthy calculations: temperature and To determine moisture indicators. Similar devices where a. hygroscopic Measuring element by connecting wes thermometric measuring element a correction for the Changes in its hygroscopic properties as a function of temperature are also known for regulating certain moisture levels - but they do not allow reading; in addition, they do not have the partial pressure of water vapor, only the relative moisture content can be adjusted. This device is coming therefore out of the question for meteorological measurements, and in particular there may be partial water vapor pressures not show at all.
Es wurde nun ,gefunden, daß das. Anzeigen und Registrieren des Wasserdampfteildruckes der Luft durch ein Gerät möglich ist, das einen Kniehebel enthält, dessen eimies Hebeelende durch ein Thermometer mit linearem Ausschlag des Meßorgans gedreht wird und dessen anderes Hebelende durch einen als Hygrometer wirkenden Haarstrang mit einem Zeiger oder Schreibhebel verbunden ist.It has now been found that the display and recording of the water vapor partial pressure the air is possible through a device that contains a toggle lever whose eimies The end of the lever is rotated by a thermometer with a linear deflection of the measuring element and the other end of the lever with a strand of hair that acts as a hygrometer connected to a pointer or writing lever.
Die Zeichnung veranschaulicht die Erfindung an einem Ausführungsbeispiele in vereinfachter Darstellung.The drawing illustrates the invention using an exemplary embodiment in a simplified representation.
Ein Bimetallthermometer 1 ist an einem Arm eines Winkelhebels angeschlossen, von dessen anderem Arm ein hygroskopischer Haarstrang 2 ausgeht, und das zweite Ende dieses Haarstranges greift an einem Schreibzeiger 3 an. Der Winkel a, des Winkelhebels und die Lage seiner Arme gegenüber den Bewegungsrichtungen, der Meßglieder 1, z ist dabei so gewählt, daß die linearen Thermometeraus:schläge in quadratische umgewandelt werden.A bimetal thermometer 1 is connected to one arm of an angle lever, from whose other arm a hygroscopic strand of hair 2 goes out, and the second The end of this strand of hair engages a writing pointer 3. The angle a, of the angle lever and the position of his arms relative to the directions of movement, the measuring members 1, z is chosen in such a way that the linear thermometer deflections are converted into quadratic ones will.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL82773D DE621017C (en) | Device for displaying and registering the partial pressure of water vapor in the air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL82773D DE621017C (en) | Device for displaying and registering the partial pressure of water vapor in the air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE621017C true DE621017C (en) | 1935-10-31 |
Family
ID=7285336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEL82773D Expired DE621017C (en) | Device for displaying and registering the partial pressure of water vapor in the air |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE621017C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4269060A (en) * | 1979-12-28 | 1981-05-26 | Kethley Lancelot I | Continuous recording of vapor pressure |
-
0
- DE DEL82773D patent/DE621017C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4269060A (en) * | 1979-12-28 | 1981-05-26 | Kethley Lancelot I | Continuous recording of vapor pressure |
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