FR2322375A1 - PULSE FREQUENCY MEASURING APPARATUS, WITH LOGARITHMIC CHARACTERISTICS - Google Patents
PULSE FREQUENCY MEASURING APPARATUS, WITH LOGARITHMIC CHARACTERISTICSInfo
- Publication number
- FR2322375A1 FR2322375A1 FR7625610A FR7625610A FR2322375A1 FR 2322375 A1 FR2322375 A1 FR 2322375A1 FR 7625610 A FR7625610 A FR 7625610A FR 7625610 A FR7625610 A FR 7625610A FR 2322375 A1 FR2322375 A1 FR 2322375A1
- Authority
- FR
- France
- Prior art keywords
- measuring apparatus
- pulse frequency
- frequency measuring
- logarithmic characteristics
- logarithmic
- 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.)
- Granted
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/005—Circuits for altering the indicating characteristic, e.g. making it non-linear
-
- 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)
- Nonlinear Science (AREA)
- Measurement Of Unknown Time Intervals (AREA)
- Analogue/Digital Conversion (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752538185 DE2538185C3 (en) | 1975-08-27 | 1975-08-27 | Digital pulse rate meter with approximately logarithmic characteristic |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2322375A1 true FR2322375A1 (en) | 1977-03-25 |
FR2322375B1 FR2322375B1 (en) | 1980-04-30 |
Family
ID=5954987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7625610A Granted FR2322375A1 (en) | 1975-08-27 | 1976-08-24 | PULSE FREQUENCY MEASURING APPARATUS, WITH LOGARITHMIC CHARACTERISTICS |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2538185C3 (en) |
FR (1) | FR2322375A1 (en) |
GB (1) | GB1509162A (en) |
IT (1) | IT1066892B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2909921A1 (en) * | 1979-03-14 | 1980-09-25 | Itt Ind Gmbh Deutsche | SOUND CHANNEL SWITCHING FOR FREQUENCY MODULATED SIGNALS |
DE2941697A1 (en) * | 1979-10-15 | 1981-04-30 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen | Measuring frequency of pulse series by summation - using defined time increments and comparison with summation limit value |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1045975A (en) * | 1963-06-28 | 1966-10-19 | Atomic Energy Authority Uk | Period meter and logarithmic ratemeter |
DE1254687B (en) * | 1963-07-04 | 1967-11-23 | Landis & Gyr Ag | Device for measuring small pulse rates |
-
1975
- 1975-08-27 DE DE19752538185 patent/DE2538185C3/en not_active Expired
-
1976
- 1976-08-24 FR FR7625610A patent/FR2322375A1/en active Granted
- 1976-08-26 IT IT2656176A patent/IT1066892B/en active
- 1976-08-26 GB GB3563376A patent/GB1509162A/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1045975A (en) * | 1963-06-28 | 1966-10-19 | Atomic Energy Authority Uk | Period meter and logarithmic ratemeter |
DE1254687B (en) * | 1963-07-04 | 1967-11-23 | Landis & Gyr Ag | Device for measuring small pulse rates |
Also Published As
Publication number | Publication date |
---|---|
DE2538185B2 (en) | 1979-01-04 |
DE2538185A1 (en) | 1977-03-03 |
DE2538185C3 (en) | 1979-08-30 |
GB1509162A (en) | 1978-04-26 |
FR2322375B1 (en) | 1980-04-30 |
IT1066892B (en) | 1985-03-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |