BE740386A - - Google Patents
Info
- Publication number
- BE740386A BE740386A BE740386DA BE740386A BE 740386 A BE740386 A BE 740386A BE 740386D A BE740386D A BE 740386DA BE 740386 A BE740386 A BE 740386A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/022—Measuring gradient
-
- 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
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/261—Amplifier which being suitable for instrumentation applications
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6932157A FR2058678A5 (fr) | 1969-09-22 | 1969-09-22 | Procede de mesure de la difference de deux frequences voisines et frequencemetre differentiel comportant application dudit procede |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE740386A true BE740386A (de) | 1970-04-01 |
Family
ID=9040388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE740386D BE740386A (de) | 1969-09-22 | 1969-10-16 |
Country Status (19)
| Country | Link |
|---|---|
| US (1) | US3681689A (de) |
| JP (1) | JPS5429386B1 (de) |
| AT (1) | AT292841B (de) |
| BE (1) | BE740386A (de) |
| CA (1) | CA930025A (de) |
| CH (1) | CH514847A (de) |
| CS (1) | CS167264B2 (de) |
| DE (1) | DE1952235C2 (de) |
| DK (1) | DK131523B (de) |
| ES (1) | ES372594A1 (de) |
| FR (1) | FR2058678A5 (de) |
| GB (1) | GB1282640A (de) |
| IL (1) | IL33200A (de) |
| LU (1) | LU59653A1 (de) |
| NL (1) | NL164673C (de) |
| NO (1) | NO132659C (de) |
| PL (1) | PL80788B1 (de) |
| SE (1) | SE353965B (de) |
| YU (1) | YU32121B (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233558A (en) * | 1975-09-10 | 1977-03-14 | Hiromi Ogasawara | Detector for minute variations |
| AU518265B2 (en) * | 1977-05-16 | 1981-09-24 | Enertec | Ripple control system |
| US4761743A (en) * | 1985-12-02 | 1988-08-02 | The Singer Company | Dynamic system analysis in a vibrating beam accelerometer |
| ATE429649T1 (de) * | 2005-09-22 | 2009-05-15 | Koninkl Philips Electronics Nv | Magnetfeld-sensor mit filter |
| WO2008075274A2 (en) * | 2006-12-18 | 2008-06-26 | Koninklijke Philips Electronics N. V. | Magnetic sensor device with robust signal processing |
| CN111220846B (zh) * | 2020-03-10 | 2022-04-19 | 星汉时空科技(北京)有限公司 | 一种高速采样全数字化频率稳定度的测试设备及方法 |
| CN117957658A (zh) | 2021-01-11 | 2024-04-30 | Ysi公司 | 用于改进传感器线性度的引入串扰电路 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2324077A (en) * | 1941-12-27 | 1943-07-13 | Rca Corp | Measuring circuit |
| FR1059746A (fr) * | 1951-07-16 | 1954-03-26 | Ebauches Sa | Procédé de comparaison des fréquences de deux générateurs haute fréquence et dispositif pour la mise en oeuvre du procédé |
| BE519917A (de) * | 1952-05-14 | |||
| DE1265864B (de) * | 1961-07-12 | 1968-04-11 | Commissariat Energie Atomique | Vorrichtung zur Messung der Frequenz der Schwingungen eines Oszillators, insbesondere eines mit magnetischer Resonanz arbeitenden Maser-Oszillators |
| FR1430874A (fr) * | 1963-12-12 | 1966-03-11 | Commissariat Energie Atomique | Magnétomètre à résonances magnétiques |
| GB1150664A (en) * | 1963-12-12 | 1969-04-30 | Commissariat A L En Atomique 6 | A Frequency Meter |
| DE1208402B (de) * | 1964-07-14 | 1966-01-05 | Standard Elektrik Lorenz Ag | Verfahren zur Bestimmung kleiner Abweichungen der Istfrequenz einer Ton- bzw. Hochfrequenz-spannung von einer Sollfrequenz |
| FR1439730A (fr) * | 1965-07-13 | 1966-05-20 | Int Standard Electric Corp | Perfectionnements aux systèmes permettant de mesurer de très faibles différences de fréquences |
| FR1554371A (de) * | 1967-03-29 | 1969-01-17 | ||
| US3524131A (en) * | 1967-09-25 | 1970-08-11 | John A Mcwaid | High speed frequency computing apparatus |
-
1969
- 1969-09-22 FR FR6932157A patent/FR2058678A5/fr not_active Expired
- 1969-10-14 US US866248A patent/US3681689A/en not_active Expired - Lifetime
- 1969-10-15 DK DK546369AA patent/DK131523B/da unknown
- 1969-10-16 GB GB50832/69A patent/GB1282640A/en not_active Expired
- 1969-10-16 IL IL33200A patent/IL33200A/xx unknown
- 1969-10-16 ES ES372594A patent/ES372594A1/es not_active Expired
- 1969-10-16 BE BE740386D patent/BE740386A/xx unknown
- 1969-10-16 NO NO4121/69A patent/NO132659C/no unknown
- 1969-10-16 SE SE14234/69A patent/SE353965B/xx unknown
- 1969-10-16 CS CS6895A patent/CS167264B2/cs unknown
- 1969-10-16 JP JP6982277A patent/JPS5429386B1/ja active Pending
- 1969-10-16 PL PL1969136354A patent/PL80788B1/pl unknown
- 1969-10-16 DE DE1952235A patent/DE1952235C2/de not_active Expired
- 1969-10-16 LU LU59653D patent/LU59653A1/xx unknown
- 1969-10-16 AT AT976769A patent/AT292841B/de not_active IP Right Cessation
- 1969-10-16 YU YU2599/69A patent/YU32121B/xx unknown
- 1969-10-16 NL NL6915680.A patent/NL164673C/xx not_active IP Right Cessation
- 1969-10-16 CH CH1550869A patent/CH514847A/fr not_active IP Right Cessation
- 1969-10-16 CA CA065096A patent/CA930025A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NO132659B (de) | 1975-09-01 |
| YU32121B (en) | 1974-04-30 |
| SE353965B (de) | 1973-02-19 |
| FR2058678A5 (fr) | 1971-05-28 |
| NL164673B (nl) | 1980-08-15 |
| LU59653A1 (de) | 1970-01-12 |
| GB1282640A (en) | 1972-07-19 |
| NO132659C (de) | 1975-12-10 |
| NL164673C (nl) | 1981-01-15 |
| ES372594A1 (es) | 1975-08-16 |
| JPS5429386B1 (de) | 1979-09-22 |
| AT292841B (de) | 1971-09-10 |
| CS167264B2 (de) | 1976-04-29 |
| DE1952235A1 (de) | 1971-05-06 |
| YU259969A (en) | 1973-10-31 |
| IL33200A0 (en) | 1969-12-31 |
| DK131523C (de) | 1975-12-22 |
| IL33200A (en) | 1973-01-30 |
| US3681689A (en) | 1972-08-01 |
| DK131523B (da) | 1975-07-28 |
| DE1952235C2 (de) | 1982-06-24 |
| CA930025A (en) | 1973-07-10 |
| PL80788B1 (de) | 1975-08-30 |
| CH514847A (fr) | 1971-10-31 |
| NL6915680A (de) | 1971-03-24 |