DE239123C - - Google Patents
Info
- Publication number
- DE239123C DE239123C DENDAT239123D DE239123DA DE239123C DE 239123 C DE239123 C DE 239123C DE NDAT239123 D DENDAT239123 D DE NDAT239123D DE 239123D A DE239123D A DE 239123DA DE 239123 C DE239123 C DE 239123C
- Authority
- DE
- Germany
- Prior art keywords
- capacitor
- current
- constant
- power source
- charging
- 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
- 239000003990 capacitor Substances 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 210000000056 organs Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/4802—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general
- G01P3/4805—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general by using circuits for the electrical integration of the generated pulses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Geschwindigkeitsmesser, welche aus einer mit der zu messenden Geschwindigkeit angetriebenen Dynamomaschine und einem den erzeugten Strom messenden Instrumente bestehen, sind bekannt. Sie besitzen zahlreiche Fehlerquellen, die die Genauigkeit der Messung beeinträchtigen können.Speedometer, which is driven by a speed to be measured Dynamo machine and an instrument measuring the generated current are known. You own numerous Sources of error that can affect the accuracy of the measurement.
Die vorliegende Erfindung betrifft eine Vorrichtung zur Messung und Registrierung vonThe present invention relates to a device for measuring and registering
ίο Geschwindigkeiten auf elektrischem Wege, bei welcher der Strom einer vorhandenen Stromquelle von möglichst konstanter Spannung entnommen wird, und zwar durch einen Kondensator konstanter Kapazität, der durch einen mechanischen Umschalter der Zahl der Umdrehungen (oder der Weglänge) entsprechend oft geladen und entladen wird.ίο speeds by electrical means, at which is the current of an existing power source of as constant a voltage as possible is taken, through a capacitor of constant capacity, which is through a mechanical switch according to the number of revolutions (or the path length) is charged and discharged often.
Die einfachste Anordnung zeigt Fig. i. Die Welle w, deren Umlaufsgeschwindigkeit zu messen ist, trägt ein Rad ζ, dessen Zähne. den Schalthebel h zwischen den Kontakten m und η hin und her bewegen, so daß der Kondensator k in der einen Stellung von der Gleichstromquelle s geladen, in der anderen durch einen Strommesser α entladen wird. Der Widerstand r verhindert das Auftreten starker Funken. .The simplest arrangement is shown in FIG. The shaft w, the speed of rotation of which is to be measured, carries a wheel ζ, its teeth. move the switching lever h back and forth between the contacts m and η so that the capacitor k is charged in one position by the direct current source s and in the other is discharged by an ammeter α. The resistance r prevents strong sparks from occurring. .
Die Angabe des Strommessers ist aus bekannten Gründen vom Übergangswiderstande der Kontakte oder von Widerständen der Leitung in weiten Grenzen unabhängig.For known reasons, the specification of the ammeter depends on the contact resistance the contacts or resistances in the line are largely independent.
Selbstverständlich kann der Schalthebel auch durch einen rotierenden Kommutator ersetzt werden. Ebenso sind noch andere an sich bekannte Anordnungen für die Ausführung desselben Grundgedankens möglich, z. B. eine 40 Of course, the switching lever can also be replaced by a rotating commutator. Other known arrangements for carrying out the same basic idea are also possible, e.g. B. a 40
Interferenzanordnung mit χ Segmenten auf dem Kommutator und χ—ι Bürsten.Interference arrangement with χ segments on the commutator and χ — ι brushes.
Statt den Kondensator abwechselnd zu laden und entladen, kann man denselben nach Fig. 2 auch umladen; dabei können die Schleifringe vermieden werden, wenn man den Kondensator selbst mit dem Kommutator rotieren läßt.Instead of alternately charging and discharging the capacitor, you can use the same also reload according to FIG. 2; the slip rings can be avoided if you use the Can rotate the capacitor itself with the commutator.
Um die Anzeige des Strommessers von der Ungleichmäßigkeit der Ladespannung unabhängig zu machen, kann die Eigenschaft der bekannten Eisen widerstände benutzt werden, den durchgeleiteten Strom in gewissen Grenzen konstant zu erhalten. Man schaltet einen solchen Eisenwiderstand in Reihe mit einem unveränderlichen Widerstand, an dessen Enden dann konstante Spannung herrscht, die zum Aufladen des Kondensators benutzt wird.To make the display of the ammeter independent of the unevenness of the charging voltage To make it, the property of the known iron resistances can be used, the current passed through within certain limits constant. You put such an iron resistor in series with one invariable resistance, at the ends of which there is then constant voltage, which leads to the Charging the capacitor is used.
Aus der Technik der Kommandoapparate sind auch noch andere Mittel zum selben Zwecke bekannt, z. B. eine kompensierende Wickelung auf dem Magneten des anzeigenden Drehspuleninstrumentes. Es handelt sich im wesentlichen darum, nicht eigentlich den durchgehenden Strom, sondern den scheinbaren Widerstand des Kondensators zu messen.From the technology of the command apparatus there are also other means of achieving the same thing Purposes known, e.g. B. a compensating winding on the magnet of the indicating Moving coil instrument. It is essentially about that, not actually the continuous one Current, but to measure the apparent resistance of the capacitor.
Soll z. B. nur eine größte und kleinste Geschwindigkeit kontrolliert werden, so kann man diese Aufgabe nach Fig. 3 dadurch lösen, daß man den Stromanzeiger«, der z. B. aus einem Relais besteht, in die Brücke eines aus drei konstanten Widerständen ν und dem Kondensator zusammengesetzten Widerstandsvierecks legt.Should z. B. only a maximum and minimum speed are controlled, you can solve this task according to FIG. B. consists of a relay, in the bridge of a composed of three constant resistors ν and the capacitor puts a resistance square.
Der Stromanzeiger kann in allen beschriebenen Fällen mit einer Registriervorrichtung ver-In all the cases described, the current indicator can be equipped with a recording device.
7070
sehen sein, Maximal- und Minimalkontakte besitzen usw. Bildet man denselben wie in Fig. 3 als Relais aus, so kann er in bekannter Weise dazu verwendet werden, die Gesch windigkeit zu regeln, z. B. den Vergaser eines Benzinmotors durch beliebige Vermittelungsorgane zu beeinflussen.be seen, have maximum and minimum contacts, etc. If one forms the same as in Fig. 3 as a relay, it can be used in a known manner to the Gesch to regulate windiness, e.g. B. the carburetor of a gasoline engine through arbitrary mediating organs to influence.
Bei allen beschriebenen Kommutatoranordnungen sind die Verhältnisse so zu wählen,For all commutator arrangements described, the ratios are to be selected so that
ίο daß die Kontaktdauer für das vollständige Laden und Entladen des Kondensators ausreicht. Um die erforderliche Zeit zu verkürzen, können an geeigneten Stellen Speicherkondensatoren, deren Kapazität zweckmäßig ein mehrfaches von der des Arbeitskondensators beträgt, angeordnet werden; ein solcher ist in Fig. 1 durch punktierte Linien angedeutet. ίο that the contact time for the full Charging and discharging the capacitor is sufficient. To shorten the time required, Storage capacitors can be installed at suitable locations, the capacitance of which is appropriate a multiple of that of the working capacitor is arranged; such a is indicated in Fig. 1 by dotted lines.
Claims (3)
20 Patent Claims:
20th
Publications (1)
Publication Number | Publication Date |
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DE239123C true DE239123C (en) |
Family
ID=498593
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 |
---|---|---|---|---|
DE746277C (en) * | 1940-07-07 | 1944-06-19 | Julius Pintsch Kom Ges | Procedure for displaying motion processes |
DE925626C (en) * | 1953-02-25 | 1955-03-24 | Zwick & Co Kg | Device for switching between force and extension counting ranges on testing machines |
-
0
- DE DENDAT239123D patent/DE239123C/de active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE746277C (en) * | 1940-07-07 | 1944-06-19 | Julius Pintsch Kom Ges | Procedure for displaying motion processes |
DE925626C (en) * | 1953-02-25 | 1955-03-24 | Zwick & Co Kg | Device for switching between force and extension counting ranges on testing machines |
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