FR1577219A - - Google Patents

Info

Publication number: FR1577219A
Authority: FR; France
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

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.)

1966-07-08

Filing date

1967-07-07

Publication date

1969-08-08

1967-07-07 Application filed filed Critical

1969-08-08 Application granted granted Critical

1969-08-08 Publication of FR1577219A publication Critical patent/FR1577219A/fr

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
- G01R23/10—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into a train of pulses, which are then counted, i.e. converting the signal into a square wave

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Measuring Frequencies, Analyzing Spectra (AREA)

FR1577219D 1966-07-08 1967-07-07 Expired FR1577219A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB30681/66A GB1196907A (en)	1966-07-08	1966-07-08	Frequency Measuring Apparatus

Publications (1)

Publication Number	Publication Date
FR1577219A true FR1577219A (fr)	1969-08-08

Family

ID=10311461

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR1577219D Expired FR1577219A (fr)	1966-07-08	1967-07-07

Country Status (3)

Country	Link
US (1)	US3518540A (fr)
FR (1)	FR1577219A (fr)
GB (1)	GB1196907A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3766818A (en) *	1972-05-01	1973-10-23	L Prohofsky	Electronic frequency measuring apparatus
US3924183A (en) *	1974-09-13	1975-12-02	Nasa	Frequency measurement by coincidence detection with standard frequency
US4027146A (en) *	1976-03-23	1977-05-31	Heath Company	High speed accurate low frequency counter
FR2420767A1 (fr) *	1978-03-22	1979-10-19	Jeumont Schneider	Dispositif de mesure de la frequence d'un generateur d'impulsions et systeme de commande numerique comportant un tel dispositif
US4685614A (en) *	1980-05-27	1987-08-11	Honeywell, Inc.	Analog to digital conversion employing the system clock of a microprocessor, the clock frequency varying with analog input
US4800508A (en) *	1986-06-30	1989-01-24	Eaton Corporation	Frequency detector
FR2605111B1 (fr) *	1986-10-01	1989-01-20	Jaeger	Procede et dispositif de mesure de la frequence d'un signal electrique
US5686835A (en) *	1989-01-18	1997-11-11	Nippondenso Co., Ltd	Physical quantity detection device for converting a physical quantity into a corresponding time interval
JP3691310B2 (ja) *	1999-10-21	2005-09-07	富士通株式会社	周波数測定回路

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2769595A (en) *	1952-07-23	1956-11-06	Hewlett Packard Co	Frequency counter
US2851596A (en) *	1954-04-15	1958-09-09	Hewlett Packard Co	Electronic counter
US3280937A (en) *	1961-06-01	1966-10-25	Jr Lawrence P Faber	Apparatus for measuring the frequency of acoustical energy
US3304504A (en) *	1964-12-14	1967-02-14	Frank J Horlander	Gate generator synchronizer
US3450991A (en) *	1967-06-05	1969-06-17	Rosenberry W K	Digital direct reading high frequency measuring apparatus and method

1966
- 1966-07-08 GB GB30681/66A patent/GB1196907A/en not_active Expired
1967
- 1967-07-06 US US651463A patent/US3518540A/en not_active Expired - Lifetime
- 1967-07-07 FR FR1577219D patent/FR1577219A/fr not_active Expired

Also Published As

Publication number	Publication date
GB1196907A (en)	1970-07-01
US3518540A (en)	1970-06-30

Publication	Publication Date	Title
FR1577219A (fr)	1969-08-08
AU5917865A (fr)	1967-11-23
AU424443B2 (fr)	1972-05-24
AU428063B2 (fr)	1972-09-13
AU414526B2 (fr)	1971-06-30
AU415165B1 (fr)	1971-07-23
AU417216B2 (fr)	1971-09-21
AU421822B2 (fr)	1972-02-28
AU433222B2 (fr)	1973-03-01
AU6703465A (fr)	1968-04-26
AU1144366A (fr)	1968-04-26
AU218666A (fr)	1967-08-31
AU5895065A (fr)	1967-11-09
AU612166A (fr)	1968-01-04
AU433620A (fr)	1969-03-27
BE662818A (fr)
BE284991A (fr)
AU92366A (fr)	1968-07-18
AU855865A (fr)	1968-01-25
AU6852465A (fr)	1968-05-09
BE475118A (fr)
BE626310A (fr)
BE694517A (fr)	1967-07-31
BE693841A (fr)	1967-07-17
BE637138A (fr)

Legal Events

Date	Code	Title
1971-10-29	TP	Transmission of property
1972-09-29	TP	Transmission of property
1978-03-03	TP	Transmission of property
1982-05-28	ST	Notification of lapse