GB706298A - Method for comparing the frequencies of two high-frequency generators and apparatus for carrying out this method - Google Patents

Method for comparing the frequencies of two high-frequency generators and apparatus for carrying out this method

Info

Publication number
GB706298A
GB706298A GB17942/52A GB1794252A GB706298A GB 706298 A GB706298 A GB 706298A GB 17942/52 A GB17942/52 A GB 17942/52A GB 1794252 A GB1794252 A GB 1794252A GB 706298 A GB706298 A GB 706298A
Authority
GB
United Kingdom
Prior art keywords
frequencies
comparing
carrying
frequency generators
frequency
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
GB17942/52A
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.)
Ebauches SA
Original Assignee
Ebauches SA
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 Ebauches SA filed Critical Ebauches SA
Publication of GB706298A publication Critical patent/GB706298A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
    • H03B21/01—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
    • H03B21/02—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies by plural beating, i.e. for frequency synthesis ; Beating in combination with multiplication or division of frequency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1207—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring
    • G04D7/1235—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for the control mechanism only (found from outside the clockwork)
    • G04D7/125—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for the control mechanism only (found from outside the clockwork) for measuring frequency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

706,298. Frequency measurements. EBAUCHES SOC. ANON. July 16, 1952 [July 16, 1951], No. 17942/52. Class 37 The frequencies of high-frequency generators 1, 2 are compared by modulating their outputs with that of a third generator 7 the frequency of which need not be constant, and using the difference frequencies to drive synchronous motors 9, 11, which drive a counter 12 through a differential gear 13.
GB17942/52A 1951-07-16 1952-07-16 Method for comparing the frequencies of two high-frequency generators and apparatus for carrying out this method Expired GB706298A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH706298X 1951-07-16

Publications (1)

Publication Number Publication Date
GB706298A true GB706298A (en) 1954-03-24

Family

ID=4530402

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17942/52A Expired GB706298A (en) 1951-07-16 1952-07-16 Method for comparing the frequencies of two high-frequency generators and apparatus for carrying out this method

Country Status (2)

Country Link
FR (1) FR1059746A (en)
GB (1) GB706298A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919403A (en) * 1954-06-15 1959-12-29 Vitro Corp Of America Frequency measuring and display system
US2935683A (en) * 1955-10-07 1960-05-03 Lissements Ed Jaeger Sa Ets Method and apparatus for measuring a magnitude such as a velocity of rotation
US3123769A (en) * 1964-03-03 Phase
US3204181A (en) * 1963-01-23 1965-08-31 Gen Precision Inc Electro-mechanical frequency comparator utilizing cams for timing
FR2058678A5 (en) * 1969-09-22 1971-05-28 Commissariat Energie Atomique METHOD FOR MEASURING THE DIFFERENCE OF TWO NEIGHBORING FREQUENCIES AND DIFFERENTIAL FREQUENCY METER INCLUDING APPLICATION OF THE SAID PROCEDURE
US11388115B2 (en) * 2019-01-16 2022-07-12 Realtek Semiconductor Corp. Circuit within switch and method for managing memory within switch

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123769A (en) * 1964-03-03 Phase
US2919403A (en) * 1954-06-15 1959-12-29 Vitro Corp Of America Frequency measuring and display system
US2935683A (en) * 1955-10-07 1960-05-03 Lissements Ed Jaeger Sa Ets Method and apparatus for measuring a magnitude such as a velocity of rotation
US3204181A (en) * 1963-01-23 1965-08-31 Gen Precision Inc Electro-mechanical frequency comparator utilizing cams for timing
FR2058678A5 (en) * 1969-09-22 1971-05-28 Commissariat Energie Atomique METHOD FOR MEASURING THE DIFFERENCE OF TWO NEIGHBORING FREQUENCIES AND DIFFERENTIAL FREQUENCY METER INCLUDING APPLICATION OF THE SAID PROCEDURE
US3681689A (en) * 1969-09-22 1972-08-01 Commissariat Energie Atomique Differential frequency meter
US11388115B2 (en) * 2019-01-16 2022-07-12 Realtek Semiconductor Corp. Circuit within switch and method for managing memory within switch

Also Published As

Publication number Publication date
FR1059746A (en) 1954-03-26

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