NL7305666A - - Google Patents
Info
- Publication number
- NL7305666A NL7305666A NL7305666A NL7305666A NL7305666A NL 7305666 A NL7305666 A NL 7305666A NL 7305666 A NL7305666 A NL 7305666A NL 7305666 A NL7305666 A NL 7305666A NL 7305666 A NL7305666 A NL 7305666A
- Authority
- NL
- Netherlands
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
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
- H03M1/08—Continuously compensating for, or preventing, undesired influence of physical parameters of noise
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
- Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2220878A DE2220878C3 (de) | 1972-04-28 | 1972-04-28 | Schaltungsanordnung zur digitalen Frequenzmessung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7305666A true NL7305666A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-10-30 |
Family
ID=5843540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7305666A NL7305666A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-04-28 | 1973-04-24 |
Country Status (8)
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4034745A (en) * | 1976-03-15 | 1977-07-12 | Bloom Kenneth A | Cardiotachometer |
| US4027146A (en) * | 1976-03-23 | 1977-05-31 | Heath Company | High speed accurate low frequency counter |
| JPS5356070A (en) * | 1976-11-01 | 1978-05-22 | Toshiba Corp | Pulse counter |
| GB1592447A (en) * | 1976-11-09 | 1981-07-08 | Girling Ltd | Speed measuring systems |
| JPS5474475A (en) * | 1977-11-25 | 1979-06-14 | Nissin Electric Co Ltd | Average power detection system |
| JPS5492372A (en) * | 1977-12-29 | 1979-07-21 | Nissin Electric Co Ltd | Average wattage detection system |
| US4224568A (en) * | 1978-05-08 | 1980-09-23 | Wagner Electric Corporation | Frequency to digital converter |
| US4251869A (en) * | 1979-05-14 | 1981-02-17 | Fischer & Porter Company | Frequency-to-binary converter |
| EP0035256B1 (de) * | 1980-03-04 | 1983-07-13 | Siemens Aktiengesellschaft | Getterkörper und Verfahren zu dessen Herstellung |
| US4363099A (en) * | 1980-03-13 | 1982-12-07 | Hydro-Quebec | Method and system for measuring frequency deviation of low frequency signals |
| US4434470A (en) * | 1981-02-09 | 1984-02-28 | The Bendix Corporation | Speed measurement system with means for calculating the exact time period of a known quantity of speed pulses |
| JPS57144465A (en) * | 1981-02-28 | 1982-09-07 | Hitachi Ltd | Speed detecting method |
| DE3107938A1 (de) * | 1981-03-02 | 1982-09-16 | Siemens AG, 1000 Berlin und 8000 München | Vorrichtung zur drehzahlerfassung |
| GB2095013B (en) * | 1981-03-18 | 1984-10-17 | Philips Electronic Associated | Multi-tone sequential call signal detector |
| JPS5848868A (ja) * | 1981-09-18 | 1983-03-22 | Fuji Electric Co Ltd | パルス周波数測定方法 |
| US4485452A (en) * | 1982-03-22 | 1984-11-27 | The Bendix Corporation | Speed measurement system |
| DE3213801A1 (de) * | 1982-04-15 | 1983-10-27 | Alfred Teves Gmbh, 6000 Frankfurt | Verfahren und vorrichtung zur erzeugung von zahlenwerten, die der frequenz der messimpulse einer messimpulsfolge proportional sind |
| JPS5913957A (ja) * | 1982-07-15 | 1984-01-24 | Fanuc Ltd | 速度検出回路 |
| JPS601566A (ja) * | 1983-06-17 | 1985-01-07 | Fuji Electric Co Ltd | 速度検出装置 |
| DE3336359A1 (de) * | 1983-10-06 | 1985-04-18 | Elster AG, Meß- und Regeltechnik, 6700 Ludwigshafen | Verfahren zum messen von frequenz oder periodendauer |
| US4541105A (en) * | 1984-03-23 | 1985-09-10 | Sundstrand Data Control, Inc. | Counting apparatus and method for frequency sampling |
| CH664762A5 (de) * | 1984-08-30 | 1988-03-31 | Sandoz Ag | Thiophen-azofarbstoffe. |
| JPH01193650A (ja) * | 1988-01-28 | 1989-08-03 | Railway Technical Res Inst | 車両の速度算出方式 |
| US5323437A (en) * | 1992-09-16 | 1994-06-21 | Honeywell Inc. | Full and partial cycle counting apparatus and method |
| DE102005022965A1 (de) * | 2005-05-19 | 2006-11-23 | Knick Elektronische Messgeräte GmbH & Co. KG | Verfahren zur Analog-Digital-Wandlung eines Messsignals auf der Basis einer Spannungs-Frequenz-Wandlung |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2992384A (en) * | 1959-07-06 | 1961-07-11 | Thompson Ramo Wooldridge Inc | Frequency counter |
| US3524131A (en) * | 1967-09-25 | 1970-08-11 | John A Mcwaid | High speed frequency computing apparatus |
| US3651414A (en) * | 1970-04-30 | 1972-03-21 | Lorain Prod Corp | Variable frequency system |
| US3725794A (en) * | 1972-02-07 | 1973-04-03 | Gte Sylvania Inc | Interpolating apparatus |
-
1972
- 1972-04-28 DE DE2220878A patent/DE2220878C3/de not_active Expired
-
1973
- 1973-04-24 NL NL7305666A patent/NL7305666A/xx unknown
- 1973-04-25 US US00354395A patent/US3829785A/en not_active Expired - Lifetime
- 1973-04-25 GB GB1959473A patent/GB1420420A/en not_active Expired
- 1973-04-25 SE SE7305797A patent/SE386279B/xx unknown
- 1973-04-27 FR FR7315457A patent/FR2182207B1/fr not_active Expired
- 1973-04-28 JP JP48048291A patent/JPS4942376A/ja active Pending
- 1973-05-15 IT IT49980/73A patent/IT994053B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| GB1420420A (en) | 1976-01-07 |
| FR2182207B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-09-10 |
| IT994053B (it) | 1975-10-20 |
| DE2220878B2 (de) | 1981-05-27 |
| FR2182207A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-12-07 |
| JPS4942376A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-04-20 |
| SE386279B (sv) | 1976-08-02 |
| US3829785A (en) | 1974-08-13 |
| DE2220878C3 (de) | 1982-04-22 |
| DE2220878A1 (de) | 1973-11-08 |