FR890879A - Voltmètre à tube - Google Patents
Voltmètre à tubeInfo
- Publication number
- FR890879A FR890879A FR890879DA FR890879A FR 890879 A FR890879 A FR 890879A FR 890879D A FR890879D A FR 890879DA FR 890879 A FR890879 A FR 890879A
- Authority
- FR
- France
- Prior art keywords
- tube voltmeter
- voltmeter
- tube
- 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
- G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
- G01R17/10—AC or DC measuring bridges
- G01R17/16—AC or DC measuring bridges with discharge tubes or semiconductor devices in one or more arms of the bridge, e.g. voltmeter using a difference amplifier
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL890879X | 1942-02-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR890879A true FR890879A (fr) | 1944-02-21 |
Family
ID=19855882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR890879D Expired FR890879A (fr) | 1942-02-12 | 1943-02-11 | Voltmètre à tube |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR890879A (fr) |
-
1943
- 1943-02-11 FR FR890879D patent/FR890879A/fr not_active Expired
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