DE2749514A1 - Potentialfreier verstaerker - Google Patents

Potentialfreier verstaerker

Info

Publication number
DE2749514A1
DE2749514A1 DE19772749514 DE2749514A DE2749514A1 DE 2749514 A1 DE2749514 A1 DE 2749514A1 DE 19772749514 DE19772749514 DE 19772749514 DE 2749514 A DE2749514 A DE 2749514A DE 2749514 A1 DE2749514 A1 DE 2749514A1
Authority
DE
Germany
Prior art keywords
amplifier
stage
gain
output
value
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.)
Withdrawn
Application number
DE19772749514
Other languages
German (de)
English (en)
Inventor
Miles Allan Smither
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Geosource Inc
Original Assignee
Geosource Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Geosource Inc filed Critical Geosource Inc
Publication of DE2749514A1 publication Critical patent/DE2749514A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/3026—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being discontinuously variable, e.g. controlled by switching
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Analogue/Digital Conversion (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
DE19772749514 1976-12-10 1977-11-04 Potentialfreier verstaerker Withdrawn DE2749514A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/749,218 US4104596A (en) 1976-12-10 1976-12-10 Instantaneous floating point amplifier

Publications (1)

Publication Number Publication Date
DE2749514A1 true DE2749514A1 (de) 1978-06-15

Family

ID=25012783

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772749514 Withdrawn DE2749514A1 (de) 1976-12-10 1977-11-04 Potentialfreier verstaerker

Country Status (5)

Country Link
US (1) US4104596A (enExample)
JP (2) JPS5372554A (enExample)
DE (1) DE2749514A1 (enExample)
FR (1) FR2373914A1 (enExample)
GB (1) GB1578645A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009574A1 (de) * 1980-03-13 1981-09-17 Krautkrämer, GmbH, 5000 Köln Verfahren und vorrichtung zur bestimmung der schallgeschwindigkeit in einem material vorgegebener dicke

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469040A1 (fr) * 1979-10-29 1981-05-08 Inst Francais Du Petrole Dispositif d'amplification et d'echantillonnage de signaux analogiques
FR2487603B1 (fr) * 1980-07-25 1986-06-27 Inst Francais Du Petrole Dispositif pour amplifier et echantillonner des signaux multiplexes
CA1170756A (en) * 1980-11-17 1984-07-10 Donald W. Harvey Remote seismic data system
US4554511A (en) * 1982-09-29 1985-11-19 Tetra Tech, Inc. Offset voltage correction network for instantaneous floating point amplifier
DE3328254A1 (de) * 1983-08-04 1985-02-21 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zum verstaerken bzw. daempfen von analogen eingangssignalen
US4725950A (en) * 1985-06-19 1988-02-16 Syntrak, Inc. Marine seismic signal processor with D.C. offset compensation method
GB8610347D0 (en) * 1986-04-28 1986-06-04 Gen Electric Co Plc Agc circuit
US4704584A (en) * 1986-06-25 1987-11-03 Fairfield Industries Instantaneous floating point amplifier
GB2234069B (en) * 1988-10-28 1992-08-12 Motorola Inc Sensor arrangement
EP0691735B1 (de) * 1994-07-08 2000-11-29 Infineon Technologies AG Verstärkeranordnung und Empfängerschaltung, die die Verstärkeranordnung enthält
JP3398573B2 (ja) * 1997-07-15 2003-04-21 松下電器産業株式会社 差動増幅装置
US8593147B2 (en) 2006-08-08 2013-11-26 Halliburton Energy Services, Inc. Resistivity logging with reduced dip artifacts
EP2066866B1 (en) 2006-12-15 2018-09-12 Halliburton Energy Services, Inc. Antenna coupling component measurement tool having rotating antenna configuration
WO2009091408A1 (en) 2008-01-18 2009-07-23 Halliburton Energy Services, Inc. Em-guided drilling relative to an existing borehole
WO2010059275A1 (en) 2008-11-24 2010-05-27 Halliburton Energy Services, Inc. A high frequency dielectric measurement tool
WO2011022012A1 (en) 2009-08-20 2011-02-24 Halliburton Energy Services, Inc. Fracture characterization using directional electromagnetic resistivity measurements
US9310508B2 (en) 2010-06-29 2016-04-12 Halliburton Energy Services, Inc. Method and apparatus for sensing elongated subterranean anomalies
MX342269B (es) 2012-06-25 2016-09-22 Halliburton Energy Services Inc Sistemas y metodos de registro de antena inclinada que producen señales de medicion robustas.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1964202B2 (de) * 1968-12-24 1975-06-19 Texaco Development Corp., New York, N.Y. (V.St.A.) Mehrkanalige Verstärkerschaltung zur Schnellaufzeichnung von in einem großen Amplitudenbereich liegenden Signalen
DE1762974B2 (de) * 1965-01-20 1976-04-29 Ausscheidung aus: 15 62 256 International Business Machines Corp., Armonk, N.Y. (V.StA.) Analog-digital-wandler

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892891A (en) * 1955-11-02 1959-06-30 Bell Telephone Labor Inc Voice-operated gain adjusting device
US3139590A (en) * 1962-05-04 1964-06-30 James H Brown A. c. amplifier with zero d. c. offset
US3308392A (en) * 1965-02-04 1967-03-07 Esso Production Company Seismic amplifier having means for changing the amplification of the seismic signal by discrete steps proportional to a given power of two
NL6502149A (enExample) * 1965-02-19 1966-08-22
US3315223A (en) * 1966-06-10 1967-04-18 Exxon Production Research Co Digital seismic recording
FR1549197A (enExample) * 1967-03-13 1968-12-13
US3671931A (en) * 1969-09-04 1972-06-20 Texaco Inc Amplifier system
JPS4871118A (enExample) * 1971-12-24 1973-09-26

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1762974B2 (de) * 1965-01-20 1976-04-29 Ausscheidung aus: 15 62 256 International Business Machines Corp., Armonk, N.Y. (V.StA.) Analog-digital-wandler
DE1964202B2 (de) * 1968-12-24 1975-06-19 Texaco Development Corp., New York, N.Y. (V.St.A.) Mehrkanalige Verstärkerschaltung zur Schnellaufzeichnung von in einem großen Amplitudenbereich liegenden Signalen

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
T.D.TOWERS, "Elements of Linear Microcircuits-5: Everyday uses of monolithic operational ampli- fiers", Wireless World, Februar 1971, S.76-80 *
U.TIETZE,Ch.SCHENK,"Halbleiter-Schaltungstechnik",2.Aufl., Springer-Verlag Berlin u.a.,1971,S.555 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009574A1 (de) * 1980-03-13 1981-09-17 Krautkrämer, GmbH, 5000 Köln Verfahren und vorrichtung zur bestimmung der schallgeschwindigkeit in einem material vorgegebener dicke

Also Published As

Publication number Publication date
JPS5372554A (en) 1978-06-28
FR2373914B1 (enExample) 1983-02-25
JPS6147517U (ja) 1986-03-29
GB1578645A (en) 1980-11-05
FR2373914A1 (fr) 1978-07-07
US4104596A (en) 1978-08-01

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8139 Disposal/non-payment of the annual fee