FR1293840A - Adjustment device for seismic amplifiers - Google Patents
Adjustment device for seismic amplifiersInfo
- Publication number
- FR1293840A FR1293840A FR866440A FR866440A FR1293840A FR 1293840 A FR1293840 A FR 1293840A FR 866440 A FR866440 A FR 866440A FR 866440 A FR866440 A FR 866440A FR 1293840 A FR1293840 A FR 1293840A
- Authority
- FR
- France
- Prior art keywords
- adjustment device
- seismic amplifiers
- seismic
- amplifiers
- adjustment
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
- H03G1/0052—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using diodes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/24—Recording seismic data
- G01V1/245—Amplitude control for seismic recording
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F9/00—Magnetic amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F9/00—Magnetic amplifiers
- H03F9/04—Magnetic amplifiers voltage-controlled, i.e. the load current flowing in only one direction through a main coil, e.g. Logan circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/45—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of non-linear magnetic or dielectric devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Nonlinear Science (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR866440A FR1293840A (en) | 1960-06-27 | 1961-06-29 | Adjustment device for seismic amplifiers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US39160A US3110857A (en) | 1960-06-27 | 1960-06-27 | Magnetic amplifier circuit |
FR866440A FR1293840A (en) | 1960-06-27 | 1961-06-29 | Adjustment device for seismic amplifiers |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1293840A true FR1293840A (en) | 1962-05-18 |
Family
ID=26191271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR866440A Expired FR1293840A (en) | 1960-06-27 | 1961-06-29 | Adjustment device for seismic amplifiers |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1293840A (en) |
-
1961
- 1961-06-29 FR FR866440A patent/FR1293840A/en not_active Expired
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