DE131145C - - Google Patents
Info
- Publication number
- DE131145C DE131145C DENDAT131145D DE131145DA DE131145C DE 131145 C DE131145 C DE 131145C DE NDAT131145 D DENDAT131145 D DE NDAT131145D DE 131145D A DE131145D A DE 131145DA DE 131145 C DE131145 C DE 131145C
- Authority
- DE
- Germany
- Prior art keywords
- ray bundle
- current
- cathode ray
- photographic
- bundle
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000004544 spot-on Substances 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R13/00—Arrangements for displaying electric variables or waveforms
- G01R13/20—Cathode-ray oscilloscopes
- G01R13/204—Using means for generating permanent registrations, e.g. photographs
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection-Type Copiers In General (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMTPATENT OFFICE
PATENTSCHRIFTPATENT LETTERING
- JVi 131145-KLASSE 21 e. - JVi 131145-CLASS 21 e.
SIEMENS & HALSKE, AKT.-GES. in BERLIN.SIEMENS & HALSKE, ACT.-GES. in Berlin.
oder der sie hervorbringenden Ströme.or the currents that produce them.
Patentirt im Deutschen Reiche vom 7. September igol ab.Patented igol in the German Empire from September 7th.
Bei dem bisher üblichen Verfahren zur photographischen Aufzeichnung von Stromcurven mittelst eines in einer Braun'schen Röhre erzeugten Kathodenstrahlenbündels zeigt sich der Uebelstand, dafs infolge der Gröfse des leuchtenden Fleckes auf dem FluOrescenz-'schirm', sowie infolge der kleineren Lichtintensität am Rande des leuchtenden Fleckes die aufgenommenen Curven grofse Strichbreite und unscharfe Strichbegrenzung aufweisen.In the previously common method for the photographic recording of current curves by means of a cathode ray beam generated in a Braun tube the inconvenience that due to the size of the luminous spot on the fluorescent 'screen', and as a result of the lower light intensity at the edge of the luminous spot, the recorded curves have a large line width and have blurred line boundaries.
Dies ist besonders störend, wenn die Curvenordinaten nur klein sind, weil eine genaue Ausmessung solcher Curven unmöglich ist. Will man ferner aus Zweckmäfsigkeitsgründen mehrere Curven auf demselben Blatte aufnehmen, so wird dasselbe wegen der Breite der Curvenstriche unübersichtlich werden.This is particularly annoying when the curve coordinates are only small because they are exact Measurement of such curves is impossible. If one also wants for reasons of expediency record several curves on the same sheet, it will be the same because of the width the curve lines become confusing.
Zweck der vorliegenden Erfindung ist, diesen Uebelstand zu beheben.The purpose of the present invention is to remedy this drawback.
Die Ausübung des bekannten Verfahrens besteht nun im Wesentlichen in Folgendem:The practice of the known procedure now essentially consists of the following:
Eine Braun'sche Röhre b wird zwischen die Pole C und d einer Influenzmaschine geschaltet. Diese erzeugt in der Röhre Kathodenstrahlen, die durch die Oeffhung des Diaphragmas e hindurchtreten und, auf den Fluorescenzschirm h der Röhre fallend, den leuchtenden Fleck hervorrufen. Werden nun die Spulen i mit Strom beschickt, so wird das Kathodenstrahlenbündel, und mit ihm der leuchtende Fleck, mehr oder weniger aus seiner Ruhelage abgelenkt, je nach Gröfse des dem Strom proportionalen Magnetfeldes der Spulen i. Werden beispielsweise die Spulen i an eine Wechselstrommaschine angeschlossen, so geröth der leuchtende Fleck in geradlinige Schwingungen. Die photographische Aufzeichnung der Stellungen des leuchtenden Fleckes zu den verschiedenen Zeiten der Schwingungen erfolgt durch den photographischen Apparat f, hinter welchen die den Film tragende rotirende Walze g angeordnet ist. Wie bereits oben erwähnt, erhält man auf diese Weise Curven, welche in Bezug auf Schärfe der Zeichnung zu wünschen übrig lassen.A Braun tube b is connected between poles C and d of an induction machine. This generates cathode rays in the tube, which pass through the opening of the diaphragm e and, falling on the fluorescent screen h of the tube, produce the luminous spot. If the coils i are now charged with current, the cathode ray bundle, and with it the luminous spot, are more or less deflected from its rest position, depending on the magnitude of the magnetic field of the coils i, which is proportional to the current. If, for example, the coils i are connected to an alternating current machine, the luminous spot reddens into straight oscillations. The photographic recording of the positions of the luminous spot at the different times of the oscillations is carried out by the photographic apparatus f, behind which the rotating roller g carrying the film is arranged. As already mentioned above, curves are obtained in this way, which leave something to be desired in terms of sharpness of the drawing.
Um eine möglichst scharfe Photographic der Curve herzustellen, werden nach vorliegender Erfindung einerseits HUlfsmagnete / in der Nähe der Röhre b angeordnet, welche das Strahlenbündel so deformiren, dafs ein durch das Bündel geführter Normalschnitt eine Schnittfigur — der leuchtende Fleck auf dem Fluorescenzschirm ist eine solche — ergiebt, welche mindestens in einer Richtung möglichst kleine Ausdehnung hat, andererseits vor der Bildfläche ein mit einem schmalen Schlitz versehener Schieber m angeordnet, welcher bewirkt, dafs stets nur ein kleiner Theil des bereits deformirten Fluorescenzfleckes auf die photographische Platte einwirkt. Zur Erzielung scharfer und zuverlässiger Curven wird ferner nach vorliegender Erfindung die den. Film tragende Walze g oder Scheibe k (Fig. 2) mit der Maschine, deren Strom- und Spannungscurve aufgezeichnet werden soll, entweder direct oder durch solche Zwischenglieder (Zahn-, räder u. s.w.) gekuppelt, welche ein unab-In order to produce the sharpest possible photographic of the curve, according to the present invention, on the one hand, auxiliary magnets / are arranged in the vicinity of the tube b , which deform the beam in such a way that a normal section guided through the beam forms a sectional figure - the luminous spot on the fluorescent screen is one - which has the smallest possible extent at least in one direction, on the other hand a slide m provided with a narrow slit is arranged in front of the picture surface, which ensures that only a small part of the already deformed fluorescent spot acts on the photographic plate. To achieve sharp and reliable curves, according to the present invention, the. Film-carrying roller g or disk k (Fig. 2) with the machine, the current and voltage curve of which is to be recorded, either directly or coupled through such intermediate members (gears, wheels, etc.), which have an independent
änderliches Uebersetzungsverhä'ltnifs gewährleisten. Vortheilhaft wird der ganze Apparat noch in einen vollkommen lichtdichten Kasten a eingebaut.Ensure changeable translation ratio. The whole apparatus is advantageously built into a completely light-tight box a .
Claims (1)
Einrichtung nach Anspruch ι zur photographischen Aufnahme von Strom- und Spannungscurven elektrischer Maschinen, dadurch gekennzeichnet, dafs die das lichtempfindliche Papier u. s. w. tragende Walze, Scheibe oder dergl. mit der Maschine, deren Strom- und Spannungscurve aufgezeichnet werden soll, direct oder durch solche Zwischenglieder (Zahnräder u. s. w.) gekuppelt ist, welche ein unabänderliches Uebersetzungsverhältnifs gewährleisten.i. Process for the photographic recording of variable magnetic fields or the currents which produce them using a cathode ray bundle influenced by the magnetic fields, characterized in that the cathode ray bundle is deformed by a suitable arrangement of several magnets in such a way that a normal section through the ray bundle gives a sectional figure which at least in one direction as small as possible, whereby a slider arranged close to the picture surface and provided with a narrow slit ensures that only a small part of the already deformed bundle of rays acts on the appropriately moved photographic plate (film, etc.) .
Device according to claim ι for the photographic recording of current and voltage curves of electrical machines, characterized in that the roller, disk or the like carrying the photosensitive paper etc. with the machine, the current and voltage curve of which is to be recorded, directly or through such intermediate elements ( Gears, etc.) is coupled, which ensure an unalterable transmission ratio.
Publications (1)
Publication Number | Publication Date |
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DE131145C true DE131145C (en) |
Family
ID=399491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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Country Status (1)
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE760306C (en) * | 1935-07-06 | 1954-08-23 | Siemens Schuckertwerke A G | Automatic electrical control device, in particular fine control by means of a movable cathode beam |
US4955522A (en) * | 1988-03-25 | 1990-09-11 | Hoechst Ceramtec Aktiengesellschaft | Process for the leakproof joining of ceramic sealing disks to metallic attachments |
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0
- DE DENDAT131145D patent/DE131145C/de active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE760306C (en) * | 1935-07-06 | 1954-08-23 | Siemens Schuckertwerke A G | Automatic electrical control device, in particular fine control by means of a movable cathode beam |
US4955522A (en) * | 1988-03-25 | 1990-09-11 | Hoechst Ceramtec Aktiengesellschaft | Process for the leakproof joining of ceramic sealing disks to metallic attachments |
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