DE863384C - Method for displaying electrical voltage bumps by means of cathode ray tubes - Google Patents
Method for displaying electrical voltage bumps by means of cathode ray tubesInfo
- Publication number
- DE863384C DE863384C DEL4679D DEL0004679D DE863384C DE 863384 C DE863384 C DE 863384C DE L4679 D DEL4679 D DE L4679D DE L0004679 D DEL0004679 D DE L0004679D DE 863384 C DE863384 C DE 863384C
- Authority
- DE
- Germany
- Prior art keywords
- voltage
- cathode ray
- electrical voltage
- ray tubes
- displaying electrical
- 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
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/28—Measuring attenuation, gain, phase shift or derived characteristics of electric four pole networks, i.e. two-port networks; Measuring transient response
- G01R27/32—Measuring attenuation, gain, phase shift or derived characteristics of electric four pole networks, i.e. two-port networks; Measuring transient response in circuits having distributed constants, e.g. having very long conductors or involving high frequencies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Description
In der Schwachstromtechniktritt in verschiedenen Abwandlungen das Problem auf, elektrische Spannungshöcker, d. h. elektrische Spannungen bzw. Ströme von impulsförmigem oder impulsähnlichem Verlauf, mittels Kathodenstrahlröhre anzuzeigen. Es kommt dabei meistens darauf an, jeweils den Kulminationspunkt eines Spannungshöckers möglichst genau zu ermitteln. In the low-voltage technology, this occurs in various modifications Problem on electrical bumps, d. H. electrical voltages or currents of a pulse-shaped or pulse-like course, to be displayed by means of a cathode ray tube. It mostly depends on the culmination point of each tension bump to be determined as precisely as possible.
Fiir die nachstehende Betrachtung sei als Beispiel ein Eunleilgerät zugrunde !gelegt, Idas mit Kathodenstrahlanzeige und rotierender Aufnahmecharakteristik arbeitet; es wird bei einer solchen Anlage der KatholdienstraEl in tS,bler,elinstimmung mit dem Maximum der Aufnahmecharakteristilk abgelenkt, so daß, wenn Schwingungen eines Senders aus einer bestimmten Richtung eintreffen, an einer bestimmten Stelle des Kathodenstrahlschirmes, die der jeweiligen Richtung zugeordnet ist, eine Ablenkung des Kathodenstrahls erfolgt, die proportional der Empfangs intensität ist. Es ergibt sich dann beispielsweise eine durch den Kathodenstrahl beschriebene KurveK, wie sie in Abb. I veranschaulicht ist. In der waagerechten Richtung erfolgt die mit der Rotation der Aufnahmecharakteristik synchronisierte Ablenkung des Kathodenstrahls (Azimutwinkel aw) und in der vertikalen Richtung die Ablenkung entsprechend der Demodulatipnsspannung U. Der Kulminationspunkt des Höckers H des Spannungsverlaufs an der Stelle r ist der Punkt, dessen genaue Ermittlung zur genauen Peilrichtungsbestimmung führt. For the following consideration, let us use an emergency device as an example based on Idas with cathode ray display and rotating recording characteristics is working; With such a facility, the KatholdienstraEl is in tS, bler, elin tune deflected with the maximum of the recording characteristics, so that when vibrations of a transmitter arrive from a certain direction, at a certain point of the cathode ray screen, which is assigned to the respective direction, a deflection of the cathode ray takes place, which is proportional to the reception intensity. It results Then, for example, a curve K described by the cathode ray, such as it is illustrated in Fig. I. In the horizontal direction it is done with the rotation of the recording characteristic synchronized deflection of the cathode ray (Azimuth angle aw) and in the vertical direction the deflection according to the Demodulation voltage U. The culmination point of the hump H of the voltage curve at the point r is the point, its exact determination for the exact bearing direction determination leads.
Gemäß der Erfindung wird der Kulminationspunkt eines solchen Spannungsverlaufs mittels Kathodenstrahlröhre dadurch genau angezeigt, daß von der betreffenden Spannung durch Differentation eine Spannung abgeleitet wird, die proportional ist dem Differentialquotienten der anzuzeigenden Spannung nach der Zeit, und daß diese abgeleitete Spannung so zur Anzeige gebracht wird, daß deren Nulldurchgang als Anzeigekriterium dient. Wie nachstehend ausführlicher erläutert ist, erreicht man eine besonders vorteilhafte, von Betriebsschwankungen z. B. weitgehend unabhängigeAnzeige, wenn man die abgeleitete Spannung durch Doppelweggleichrichtung gleichgerichtet und sie als solche als Anzeigespannung verwendet. According to the invention, it becomes the culmination point of such a stress curve by means of a cathode ray tube thereby precisely indicated that of the voltage in question a voltage is derived by differentiation which is proportional to the differential quotient the voltage to be displayed according to the time, and that this derived voltage is so is displayed that the zero crossing serves as a display criterion. As is explained in more detail below, one achieves a particularly advantageous, of operating fluctuations z. B. largely independent display if one takes the derived Voltage rectified by full wave rectification and as such as display voltage used.
Die Abb. 2 bis 5 dienen der Veranschaulichung des erfindungsgemäßen Verfahrens. Figs. 2 to 5 serve to illustrate the invention Procedure.
Abb. 2 zeigt schematisch ein Ausführungsbeispiel der an sich bekannten Maßnahme zur Ableitung einer Spannung UD, die proportional ist dem Differentialquotienten der anzuzeigenden Spannung U nach der Zeit. An die Spannungsquelle von U ist der Widerstand I angeschlossen und in Reihe mit Idiesem Idie Drosselspule 2. Hat Ider Widerstand einen ausreichend großen Wert (Innenwiderstand einer Penthode), so hat die Klemmenspannung UD einen Verlauf, dessen funktionelle Beziehungen gleich der Ableitung der Spannungsfunktion U nach der Zeit ist. Fig. 2 shows schematically an embodiment of the known per se Measure to derive a voltage UD, which is proportional to the differential quotient the voltage U to be displayed according to the time. To the voltage source of U is the Resistor I connected and in series with I this I the inductor 2. Has Ider Resistance has a sufficiently large value (internal resistance of a penthode) the terminal voltage UD has a curve whose functional relationships are equal to Is the derivative of the voltage function U with respect to time.
Abb. 3 veranschaulicht diesen Sachverhalt. Der Kurvenzug KD zeigt den Verlauf der Spannung UD in Abhängigkeit von dem Azimutwinkel aw. An der Stelle r befindet sich der Nulldurchgang, der deutlicher und exakter somit die Stelle r kennzeichnet, die bei dem Kurvenbild gemäß Abb. I nur ungenau zu ermitteln ist. Fig. 3 illustrates this fact. The curve KD shows the course of the voltage UD as a function of the azimuth angle aw. At the point r is the zero crossing, the clearer and more exact the point r which can only be determined imprecisely in the graph according to Fig. I.
Wird nun gemäß der Erfindung noch ein Doppelweggleichrichter angewendet, wie in Abb. 4 schaltbildmäßig dargestellt ist, und durch diesen Idie Spannung UD gleichgerichtet, so daß die Spannung UG entsteht, und diese nach dem an und für sich gleichen Prinzip wie zuvor U bzw. UD angezeigt, so beschreibt der Kathodenstrahl den KurvenzugKG, wie Abb. 5 veranschaulicht. Die Abbildung läßt erkennen, daß bei dieser Anzeige die Stelle r noch exakter und deutlicher zu ermitteln ist wie bei einer Anzeige gemäß Abb. 3. If a full-wave rectifier is now used according to the invention, as shown in the circuit diagram in Fig. 4, and through this I the voltage UD rectified, so that the voltage UG arises, and this after the on and for The cathode ray describes the same principle as previously indicated for U or UD the curve KG, as Fig. 5 illustrates. The figure shows that at in this display the position r can be determined even more precisely and clearly as in a display according to Fig. 3.
Auch fallen hierbei Einflüsse der Betriebsspannungsschwankungen weg, die bei dem Anzeigeverfahren gemäß Abb. 3 eine gewisse Verschiebung der Stelle 3 bedingen können.The influences of the operating voltage fluctuations are also eliminated, In the display method according to Fig. 3, there is a certain shift in position 3 can condition.
Die Anwendung des erfindungsgemäßen Verfahrens setzt voraus, daßt die impuls ähnliche Spannung, deren Kulminationspunkt anzuzeigen ist, durch geeignete Filter, etwa ein Tiefpaßfilter, von höherfrequenten Störspannungen, etwa Rauschspannungen, befreit ist, so daß diese Störspannungen durch die Differentation keine Spannungserhöhung erfahren und so keine Störung der Anzeige bewirken können. The application of the method according to the invention assumes thatt the impulse-like voltage, the culmination point of which is to be indicated by suitable Filter, such as a low-pass filter, for higher-frequency interference voltages, such as noise voltages, is released, so that these interference voltages do not increase in voltage due to the differentiation and so cannot cause any disruption to the display.
PATENThNSPRbCIIE: I. Verfahren zur Anzeige von elektrischen Spannungshöckern mittels Kathodenstrahlröhre, gekennzeichnet durch Ableitung einer Spannung, die proportional ist dem Differentialquotienten der anzuzeigenden Spannung nach der Zeit und Verwertung von deren Nulldurchgang als Anzeigekriterium. PATENT PRINCIPLE: I. Method for displaying electrical voltage bumps by means of cathode ray tube, characterized by deriving a voltage which is proportional to the differential quotient of the voltage to be displayed after the Time and utilization of their zero crossing as display criteria.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL4679D DE863384C (en) | 1944-11-22 | 1944-11-22 | Method for displaying electrical voltage bumps by means of cathode ray tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL4679D DE863384C (en) | 1944-11-22 | 1944-11-22 | Method for displaying electrical voltage bumps by means of cathode ray tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE863384C true DE863384C (en) | 1953-01-15 |
Family
ID=7256591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL4679D Expired DE863384C (en) | 1944-11-22 | 1944-11-22 | Method for displaying electrical voltage bumps by means of cathode ray tubes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE863384C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1068365B (en) * | 1959-11-05 | |||
DE975028C (en) * | 1954-08-05 | 1961-07-13 | Telefunken Patent | Method for improving the angular resolution and for masking interference in pulse radar devices |
DE1153544B (en) * | 1956-12-06 | 1963-08-29 | Wenczler & Heidenhain | Photoelectric device for measuring and adjusting the position of objects, in particular of graduation marks |
DE1193164B (en) * | 1962-06-05 | 1965-05-20 | Bodenseewerk Perkin Elmer Co | Device for triggering a switching pulse when passing through an extreme value of an electrical measurement voltage |
DE1239398B (en) * | 1963-03-01 | 1967-04-27 | Electronique & Automatisme Sa | Circuit arrangement for determining the point in time of the peak value of an electrical voltage |
-
1944
- 1944-11-22 DE DEL4679D patent/DE863384C/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1068365B (en) * | 1959-11-05 | |||
DE975028C (en) * | 1954-08-05 | 1961-07-13 | Telefunken Patent | Method for improving the angular resolution and for masking interference in pulse radar devices |
DE1153544B (en) * | 1956-12-06 | 1963-08-29 | Wenczler & Heidenhain | Photoelectric device for measuring and adjusting the position of objects, in particular of graduation marks |
DE1193164B (en) * | 1962-06-05 | 1965-05-20 | Bodenseewerk Perkin Elmer Co | Device for triggering a switching pulse when passing through an extreme value of an electrical measurement voltage |
DE1239398B (en) * | 1963-03-01 | 1967-04-27 | Electronique & Automatisme Sa | Circuit arrangement for determining the point in time of the peak value of an electrical voltage |
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