DE843444C - Pointer frequency meter with two resonance circles - Google Patents

Pointer frequency meter with two resonance circles

Info

Publication number
DE843444C
DE843444C DEG806D DEG0000806D DE843444C DE 843444 C DE843444 C DE 843444C DE G806 D DEG806 D DE G806D DE G0000806 D DEG0000806 D DE G0000806D DE 843444 C DE843444 C DE 843444C
Authority
DE
Germany
Prior art keywords
frequency meter
pointer
pointer frequency
resonance
meter
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
Application number
DEG806D
Other languages
German (de)
Inventor
Karl Dipl-Ing Goetz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
P Gossen and Co GmbH
Original Assignee
P Gossen and Co GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by P Gossen and Co GmbH filed Critical P Gossen and Co GmbH
Priority to DEG806D priority Critical patent/DE843444C/en
Application granted granted Critical
Publication of DE843444C publication Critical patent/DE843444C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)

Description

Die bekannten Zeigerfrequenzmesser dieser Art sind, wenig keine zusätzlichen Gegenmaßnahmen getroffen werden, nicht genügend unabhängig von der augelegten Spannung, oder es wird ihre Anzeige vom Oberwellengehalt der Speisespannung beeinflußt. Meßwerke, welche oberwellensicher sind, benötigen deshalb eine erhebliche Leistung für ein gutes Einstellmoment und die Mittel zur \erbesserung der Genauigkeit. The known pointer frequency meters of this type are little or no additional ones Countermeasures are taken, not sufficiently independent of the applied voltage, or their display is influenced by the harmonic content of the supply voltage. Measuring units, which are harmonic safe, therefore require a considerable amount of power for a good adjustment torque and the means to improve accuracy.

Nach der Erfindung soll die Schaltung der Resonanzkreise so getroffen werden, daß die Kondensatoren parallel dem System aus Selbstinduktion und einem Gleichrichter, vorzugsweise einem Doppelweggleichrichter, liegen. In diesem Falle sprechen die Resonanzkreise auf Oberwellen oder Verzerrungen der Trägerfrequenzen nicht an, da die Kondensatoren diese Oberwellen kurzschließen. According to the invention, the circuit of the resonance circuits should be made in this way that the capacitors are parallel to the system of self-induction and a Rectifiers, preferably a full wave rectifier, lie. In this case the resonance circles speak to harmonics or distortion of the carrier frequencies because the capacitors short-circuit these harmonics.

Als Meßwerk soll ein Quotientenmesser dienen.A quotient meter should serve as the measuring mechanism.

I)ieser ist in weiten Grenzen spannungsunabhängig.I) this is voltage-independent within wide limits.

Diese Schaltung bedarf keinerlei Siebmittel, um Oberwellen vom Meßwerk fernzuhalten, sie ist auch in weitem Maße spannungsunabhängig und verbraucht für ausreichende Anzeige sehr geringe Leistung. Der Temperaturlauf der Spulen und der Gleichrichter ist entgegengesetzt, und die noch verbleibenden Reste der Temperaturunabhängigkeit der Resonanzkreise werden, wie auch die Spannungsveränderungen, praktisch ausreichend vom Quotientenmeßwerk ausgeglichen, ohne daß leistungsverzehrende Siebmittel oder Widerstände zusätzlich erforderlich werden. This circuit does not require any filter means to prevent harmonics from the measuring mechanism keep away, it is also largely voltage-independent and consumed for adequate display very low performance. The temperature course of the coils and the Rectifier is opposite, and the remaining remnants of temperature independence of the resonance circuits, as well as the voltage changes, are practically sufficient balanced by the quotient measuring mechanism without the need for performance-consuming sieve means or Resistors are also required.

Mit diesem Meßinstrument können auch schwache Energieträger ohne Beeinflussung ihrer Frequenz auf diese genau eingestellt oder durchgemessen werden. With this measuring instrument, even weak energy sources can be used without Influencing their frequency to be precisely adjusted or measured on this.

Die Vorschaltwiderstände bei hohen Spannungen können ohne störende Wärmeentwicklung in einem Gehäuse mit dem Meßwerk angebracht werden. Eine Anderung derselben zum Anschluß des Frequenzmessers an andere Spannungswerte beeinflußten die Anzeigegenauigkeit nur unmerklich. The series resistors at high voltages can be used without disturbing Heat generation can be attached in a housing with the measuring mechanism. A change the same for connecting the frequency meter to other voltage values the accuracy of the display only imperceptibly.

In der Abbildung sind a1, a2 Selbstinduktionen, b1, b2 Kondensatoren der Resonanzkreise 1 und 2, von welchen der einen unter, der andere über dem Frequenzbereich des abzulesenden Wellenwertes eingestellt ist. Die Gleichrichter c verwandeln den sie durchsetzenden Wechsel stromwert in Gleichstrom, der den beiden Spulen d und e eines Quotientenmessers zugeführt wird. f und g sind Vorschaltwiderstände zur Entwicklung geordneter Resonanzverhältnisse, h ein Vorwiderstand für die Einstellung der Betriebsspannung, welche sich jedoch in weiten Grenzen ändern kann, ohne die Frequenzanzeige merklich zu beeinflussen.In the figure, a1, a2 are self-inductances, b1, b2 are capacitors of resonance circuits 1 and 2, one of which is below and the other above the frequency range of the shaft value to be read is set. The rectifiers c transform the they enforce alternating current value in direct current, which the two coils d and e is fed to a quotient meter. f and g are series resistors for Development of orderly resonance relationships, h a series resistor for the setting the operating voltage, which can change within wide limits without the Noticeably influencing frequency display.

Claims (3)

P A T E N T A N S P R Ü C H E : I. Zeigerfrequenzmesser mit zwei Resonanzkreisen und in diesen angehrachten Gleichrichtern, dadurch gekennzeichnet, daß die Kondensatoren der Resonanzkreise parallel zu dem System aus Selbstinduktion und Gleichrichter geschaltet sind. P A T E N T A N S P R Ü C H E: I. Pointer frequency meter with two Resonance circuits and rectifiers attached in them, characterized in that that the capacitors of the resonance circuits parallel to the system of self-induction and rectifiers are connected. 2. Zeigerfrequenzmesser nach Anspruch I, dadurch gekennzeichnet, daß als Meßwerk ein Quotientenmesser dient. 2. Pointer frequency meter according to claim I, characterized in that that a quotient meter serves as the measuring mechanism. 3. Zeigerfrequenztuesser nach Anspruch 1 und 2, dadurch gekennzeichnet, daß als die Sperrschicht bildender Halbleiter Kupferoxydul in Vollweggleichrichtung dient. 3. Pointer frequency converter according to claim 1 and 2, characterized in that that as the barrier layer forming semiconductor copper oxide in full wave rectification serves.
DEG806D 1943-02-21 1943-02-21 Pointer frequency meter with two resonance circles Expired DE843444C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG806D DE843444C (en) 1943-02-21 1943-02-21 Pointer frequency meter with two resonance circles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG806D DE843444C (en) 1943-02-21 1943-02-21 Pointer frequency meter with two resonance circles

Publications (1)

Publication Number Publication Date
DE843444C true DE843444C (en) 1952-07-07

Family

ID=7115960

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG806D Expired DE843444C (en) 1943-02-21 1943-02-21 Pointer frequency meter with two resonance circles

Country Status (1)

Country Link
DE (1) DE843444C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE947743C (en) * 1953-10-06 1956-08-23 Siemens Ag Process for the continuous measurement of the frequency of slow sinusoidal oscillations
DE1038190B (en) * 1952-09-12 1958-09-04 Gen Electric Co Ltd Device for measuring the frequency of an alternating voltage or the rotational speed of a shaft
US2944215A (en) * 1958-04-25 1960-07-05 Gen Electric Suppressed zero frequency meter circuit
US2993170A (en) * 1955-06-29 1961-07-18 Westinghouse Electric Corp Alternating current responsive devices

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1038190B (en) * 1952-09-12 1958-09-04 Gen Electric Co Ltd Device for measuring the frequency of an alternating voltage or the rotational speed of a shaft
DE947743C (en) * 1953-10-06 1956-08-23 Siemens Ag Process for the continuous measurement of the frequency of slow sinusoidal oscillations
US2993170A (en) * 1955-06-29 1961-07-18 Westinghouse Electric Corp Alternating current responsive devices
US2944215A (en) * 1958-04-25 1960-07-05 Gen Electric Suppressed zero frequency meter circuit

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