DE373516C - Procedure for measuring and registering air density - Google Patents
Procedure for measuring and registering air densityInfo
- Publication number
- DE373516C DE373516C DEW57244D DEW0057244D DE373516C DE 373516 C DE373516 C DE 373516C DE W57244 D DEW57244 D DE W57244D DE W0057244 D DEW0057244 D DE W0057244D DE 373516 C DE373516 C DE 373516C
- Authority
- DE
- Germany
- Prior art keywords
- air
- measuring
- nozzle
- air density
- procedure
- 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
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/32—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by using flow properties of fluids, e.g. flow through tubes or apertures
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)
- Sampling And Sample Adjustment (AREA)
Description
Verfahren zur Messung und Registrierung der Luftdichte. Gegenstand der Erfindung bildet ein Verfahren zum Messen und Registrieren der Luftdichte, durch welches die Dichte der gemessenen Luft unmittelbar angegeben wird.Procedure for measuring and registering the air density. object of the invention provides a method for measuring and registering air density which indicates the density of the measured air immediately.
Die Erfindung besteht im wesentlichen darin, daß die unter Zwischenschaltung eines Druckreglers einer Düse zugeführte Luft von dieser abwechselnd in eine Membrandose, deren Ausdehnung eine Schreibvorrichtung in Tätigkeit setzt, und in die Atmosphäre geleitet wird, um Membran und Schreibvorrichtung in die Nullstellung zurückgelangen zu lassen.The invention consists essentially in the fact that the interposition a pressure regulator of a nozzle air fed from this alternately into a diaphragm box, the expansion of which puts a writing device into action, and into the atmosphere is directed to return the diaphragm and writing device to the zero position allow.
Auf der Zeichnung ist beispielsweise eine Anordnung zur Ausführung des Verfahrens veranschaulicht.In the drawing, for example, is an arrangement for execution of the procedure illustrated.
Abb. r zeigt den Aufriß der Anordnung, Abb. 2 einen Mittelschnitt und Abb. 3 einen Schnitt durch die Düse. Auf der Grundplatte a ist ein Überströmdruckregler b gelagert. dem die durch eine Staudüse o. dgl. erzeugte Druckluft durch ein Rohr c zugeführt wird. Der Druckregler b ist von irgendeiner zweckentsprechenden bekannten Bauart. Von ihm aus gelangt die Luft durch ein Rohr d zu einer Düse e, von wo aus sie durch eine Leitung g zu einer Membrandose h oder durch ein Rohr i zu einem Ventil k fließen kann. Ist dieses geschlossen, so strömt die aus der Düse e kommende Luft in die '.%-Iembrandose h, die mit einem Zeiger in mit Feder n in Verbindung steht. Diese schreibt auf der Registriertrommel o, die von einem Uhrwerk in bekannter Weise gedreht wird.Fig. R shows the front view of the arrangement, Fig. 2 shows a central section and Fig. 3 shows a section through the nozzle. An overflow pressure regulator b is mounted on the base plate a. to which the compressed air generated by a nozzle or the like is fed through a pipe c. The pressure regulator b is of any suitable known type. From there, the air passes through a pipe d to a nozzle e, from where it can flow through a line g to a diaphragm can h or through a pipe i to a valve k. If this is closed, the air coming from the nozzle e flows into the membrane can h, which is connected to a pointer in with spring n . This writes on the recording drum o, which is rotated by a clockwork in a known manner.
Das Ventil k wird vorteilhaft mittels eines Solenoides Q gesteuert, dessen Anker q die Ventilkugel r anhebt und senkt.The valve k is advantageously controlled by means of a solenoid Q, whose armature q raises and lowers the valve ball r.
Die Wirkungsweise des neuen Luftdichteschreibers ist folgende: Die von der Staudüse erzeugte Druckluft wird durch den LTberströmdruckregler b auf konstantem Druck gehalten und strömt dauernd durch die Düse e aus. Während einer @ an einem Uhrwerk bestimmten Zeit wird nun die aus der Düse e ausfließende Luftmenge der Membrandose lt zugeführt, die eine dieser Luftmenge entsprechende Ausdehnung erfährt. Die von der Membran gesteuerte Schreibvorrichtung st zeichnet während dieser Zeit einen Strich auf die Registriertrommel o auf. Die Länge dieses Striches entspricht der in die Membrandose eingeströrnten Luftmenge. Da die aus einer Düse ausfließende Luftmenge in einem bestimmten Verhältnis zum spezifischen Gewicht der Luft steht, so ergibt die Strichlänge auf der Trommel o unmittelbar ein Maß für die Luftdichte.The mode of operation of the new air density recorder is as follows: The Compressed air generated by the stagnation nozzle is kept constant by the L overflow pressure regulator b Pressure is maintained and flows out continuously through nozzle e. During an @ on a The amount of air of the diaphragm box flowing out of the nozzle e is now determined by the clockwork lt supplied, which experiences an expansion corresponding to this amount of air. The from the diaphragm-controlled writing device st draws a during this time Line up on the recording drum o. The length of this line corresponds to Amount of air frozen into the diaphragm box. Because the flowing out of a nozzle The amount of air is related to the specific weight of the air, so the line length on the drum o directly gives a measure of the air density.
Das Uhrwerk v eranlaßt nun nach Ablauf der Einströrnzeit das Öffnen des Ventils k durch das Solenoid p. Die aus der Düse e ausströmende Luft kann zusammen mit der aus der Membrandose h ins Freie treten, so daß Membran und Schreibvorrichtung in die Nullage zurückgehen.After the inflow time has elapsed, the movement causes the valve k to be opened by the solenoid p. The air flowing out of the nozzle e can enter the open air together with the air from the diaphragm can h, so that the membrane and the writing device return to the zero position.
Wird das Ventil k vom Uhrwerk wieder geschlossen, so wiederholt sich der beschriebene Vorgang.If the valve k is closed again by the clockwork, it is repeated the process described.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW57244D DE373516C (en) | Procedure for measuring and registering air density |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW57244D DE373516C (en) | Procedure for measuring and registering air density |
Publications (1)
Publication Number | Publication Date |
---|---|
DE373516C true DE373516C (en) | 1923-04-13 |
Family
ID=7605210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEW57244D Expired DE373516C (en) | Procedure for measuring and registering air density |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE373516C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004111494A1 (en) * | 2003-06-12 | 2004-12-23 | Dayco Europe S.R.L. Con Unico Socio | A clutch-wheel drive device |
-
0
- DE DEW57244D patent/DE373516C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004111494A1 (en) * | 2003-06-12 | 2004-12-23 | Dayco Europe S.R.L. Con Unico Socio | A clutch-wheel drive device |
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