FR1508539A - Perfectionnements aux voltmètres - Google Patents
Perfectionnements aux voltmètresInfo
- Publication number
- FR1508539A FR1508539A FR91470A FR91470A FR1508539A FR 1508539 A FR1508539 A FR 1508539A FR 91470 A FR91470 A FR 91470A FR 91470 A FR91470 A FR 91470A FR 1508539 A FR1508539 A FR 1508539A
- Authority
- FR
- France
- Prior art keywords
- voltmeters
- 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
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/255—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques using analogue/digital converters of the type with counting of pulses during a period of time proportional to voltage or current, delivered by a pulse generator with fixed frequency
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/02—Measuring effective values, i.e. root-mean-square values
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2377/66A GB1167331A (en) | 1966-01-18 | 1966-01-18 | A Voltmeter |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1508539A true FR1508539A (fr) | 1968-01-05 |
Family
ID=9738480
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR91470A Expired FR1508539A (fr) | 1966-01-18 | 1967-01-17 | Perfectionnements aux voltmètres |
Country Status (5)
Country | Link |
---|---|
US (1) | US3564407A (fr) |
DE (1) | DE1591999B1 (fr) |
FR (1) | FR1508539A (fr) |
GB (1) | GB1167331A (fr) |
NL (1) | NL142239B (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3676802A (en) * | 1971-06-21 | 1972-07-11 | Us Navy | Submarine propeller cavitation noise simulator |
US3916180A (en) * | 1974-06-21 | 1975-10-28 | Gen Signal Corp | Analog mathematical root extractor |
US4245183A (en) * | 1978-03-31 | 1981-01-13 | Sundstrand Corporation | RMS Circuit for voltage regulation |
US5523676A (en) * | 1994-03-31 | 1996-06-04 | Delco Electronics Corp. | Sample and hold method and apparatus for sensing inductive load current |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB730028A (en) * | 1952-06-20 | 1955-05-18 | Elliott Brothers London Ltd | Improvements in or relating to electronic amplifying circuits |
-
1966
- 1966-01-18 GB GB2377/66A patent/GB1167331A/en not_active Expired
-
1967
- 1967-01-13 NL NL676700618A patent/NL142239B/xx unknown
- 1967-01-17 US US609831A patent/US3564407A/en not_active Expired - Lifetime
- 1967-01-17 DE DE19671591999 patent/DE1591999B1/de active Pending
- 1967-01-17 FR FR91470A patent/FR1508539A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL6700618A (fr) | 1967-07-19 |
US3564407A (en) | 1971-02-16 |
NL142239B (nl) | 1974-05-15 |
GB1167331A (en) | 1969-10-15 |
DE1591999B1 (de) | 1970-08-20 |
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