GB1451907A - Digital frequency meter - Google Patents
Digital frequency meterInfo
- Publication number
- GB1451907A GB1451907A GB5263673A GB5263673A GB1451907A GB 1451907 A GB1451907 A GB 1451907A GB 5263673 A GB5263673 A GB 5263673A GB 5263673 A GB5263673 A GB 5263673A GB 1451907 A GB1451907 A GB 1451907A
- Authority
- GB
- United Kingdom
- Prior art keywords
- counter
- frequency
- stages
- state
- store
- 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
- 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)
- Measurement Of Unknown Time Intervals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2257578A DE2257578A1 (de) | 1972-11-24 | 1972-11-24 | Frequenzzaehler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1451907A true GB1451907A (en) | 1976-10-06 |
Family
ID=5862579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5263673A Expired GB1451907A (en) | 1972-11-24 | 1973-11-13 | Digital frequency meter |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3909716A (enExample) |
| DE (1) | DE2257578A1 (enExample) |
| FR (1) | FR2208120B3 (enExample) |
| GB (1) | GB1451907A (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2912172A1 (de) * | 1978-03-31 | 1979-10-11 | Honeywell Inc | Digitale anzeigeeinrichtung |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5128727A (enExample) * | 1974-09-04 | 1976-03-11 | Canon Kk | |
| US4027146A (en) * | 1976-03-23 | 1977-05-31 | Heath Company | High speed accurate low frequency counter |
| US4443766A (en) * | 1976-06-15 | 1984-04-17 | The United States Of America As Represented By The Secretary Of The Air Force | Precision digital sampler |
| US4151466A (en) * | 1977-12-05 | 1979-04-24 | Ford Motor Company | Digital speedometer with index counter control of display |
| FR2439385A1 (fr) * | 1978-10-17 | 1980-05-16 | Jaeger | Perfectionnements a la commande des dispositifs d'affichage a tambours electro-magnetiques |
| NL8200050A (nl) * | 1982-01-08 | 1983-08-01 | Philips Nv | Prequentiesyntheseschakeling. |
| US4541105A (en) * | 1984-03-23 | 1985-09-10 | Sundstrand Data Control, Inc. | Counting apparatus and method for frequency sampling |
| CA1274876A (en) * | 1986-10-15 | 1990-10-02 | Myles Mcmillan | Apparatus for measuring the frequency of microwave signals |
| US4786861A (en) * | 1987-09-01 | 1988-11-22 | Sundstrand Data Control, Inc. | Frequency counting apparatus and method |
| CN108333425B (zh) * | 2018-01-16 | 2024-03-29 | 南昌大学 | 一种数字频率计 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE632672A (enExample) * | 1962-05-26 | |||
| US3735387A (en) * | 1969-08-21 | 1973-05-22 | Gen Electric | Means for inhibiting flutter in a numerical display |
| US3689747A (en) * | 1970-12-09 | 1972-09-05 | Ibm | Digital evaporation monitor system |
| US3681707A (en) * | 1971-04-27 | 1972-08-01 | Autech Corp | Digital adf tuning indicator |
-
1972
- 1972-11-24 DE DE2257578A patent/DE2257578A1/de active Pending
-
1973
- 1973-11-13 GB GB5263673A patent/GB1451907A/en not_active Expired
- 1973-11-23 FR FR7342646A patent/FR2208120B3/fr not_active Expired
- 1973-11-26 US US418973A patent/US3909716A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2912172A1 (de) * | 1978-03-31 | 1979-10-11 | Honeywell Inc | Digitale anzeigeeinrichtung |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2208120A1 (enExample) | 1974-06-21 |
| DE2257578A1 (de) | 1974-06-06 |
| FR2208120B3 (enExample) | 1976-10-15 |
| US3909716A (en) | 1975-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1451907A (en) | Digital frequency meter | |
| GB1270113A (en) | Improvements in or relating to phase-responsive circuits | |
| ES335608A1 (es) | Codificador no lineal para señales de impulsos modulados en amplitud. | |
| GB1440390A (en) | Signal generating circuit | |
| GB1487966A (en) | Frequency-division circuit | |
| GB1496743A (en) | Digital frequency comparator circuit | |
| GB1161549A (en) | Analog to Digital Converter | |
| DE2965314D1 (de) | Demodulator arrangement for diphase digitally modulated signals | |
| GB1141723A (en) | Pulse frequency divider | |
| GB1451467A (en) | Digital divider circuits | |
| GB1328739A (en) | Data change detector | |
| GB1421243A (en) | Analysing data of a predetermined bit rate | |
| GB1196907A (en) | Frequency Measuring Apparatus | |
| GB1273429A (en) | Improvements in or relating to measuring instruments | |
| GB1456425A (en) | Count system | |
| GB1515740A (en) | Zero code suppression in data transmission systems | |
| GB1258736A (enExample) | ||
| GB1333855A (en) | Count display system | |
| ES467505A1 (es) | Circuito para producir una cuenta digital representativa delvalor medio de la frecuencia de un tren de impulsos de sena-les de frecuencia variable. | |
| GB1102331A (en) | Improvements in or relating to data processing systems | |
| GB1482038A (en) | Counters | |
| GB1307508A (en) | Numerical display distortionmeter | |
| GB1143424A (en) | Improvements in or relating to frequency- and time-proportional signal control devices | |
| GB1131538A (en) | An electrical circuit for use in the measurement of acceleration | |
| GB1189657A (en) | Improvements relating to Frequency Modulation Receivers for Data Transmission. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |