GB2060963A - Improvements in or relating to amplifiers - Google Patents

Improvements in or relating to amplifiers Download PDF

Info

Publication number
GB2060963A
GB2060963A GB8032172A GB8032172A GB2060963A GB 2060963 A GB2060963 A GB 2060963A GB 8032172 A GB8032172 A GB 8032172A GB 8032172 A GB8032172 A GB 8032172A GB 2060963 A GB2060963 A GB 2060963A
Authority
GB
United Kingdom
Prior art keywords
amplifier
voltage
signal
signals
linear
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Withdrawn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
GB8032172A
Other languages
English (en)
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.)
Krautkraemer GmbH and Co
Krautkraemer GmbH
Original Assignee
Krautkraemer GmbH and Co
Krautkraemer GmbH
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 Krautkraemer GmbH and Co, Krautkraemer GmbH filed Critical Krautkraemer GmbH and Co
Publication of GB2060963A publication Critical patent/GB2060963A/en
Withdrawn legal-status Critical Current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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
GB8032172A 1979-10-17 1980-10-06 Improvements in or relating to amplifiers Withdrawn GB2060963A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792941961 DE2941961A1 (de) 1979-10-17 1979-10-17 Verfahren zur signalspannungsabhaengigen veraenderung des verstaerkungsfaktors

Publications (1)

Publication Number Publication Date
GB2060963A true GB2060963A (en) 1981-05-07

Family

ID=6083668

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8032172A Withdrawn GB2060963A (en) 1979-10-17 1980-10-06 Improvements in or relating to amplifiers

Country Status (4)

Country Link
JP (1) JPS5666915A (de)
DE (1) DE2941961A1 (de)
FR (1) FR2468254A1 (de)
GB (1) GB2060963A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2559974A1 (fr) * 1984-02-21 1985-08-23 Mine Safety Appliances Co Circuit de linearisation a point de rupture unique
EP2636992A1 (de) * 2012-03-08 2013-09-11 Mitutoyo Corporation Oberflächentexturmessvorrichtung, Steuerung für ein Oberflächentexturmessgerät und Verfahren zur Steuerung davon

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3227521C2 (de) * 1982-07-23 1984-11-22 Krautkrämer GmbH, 5000 Köln Verfahren und Vorrichtung zur zerstörungsfreien Werkstoffprüfung nach dem Ultraschall-Impulsreflektionsverfahren
JP2859880B2 (ja) * 1988-10-07 1999-02-24 株式会社日立製作所 可変利得増幅回路
US9463117B2 (en) 2012-08-31 2016-10-11 Oakley, Inc. Eyewear having multiple ventilation states
CA2943798C (en) 2014-03-27 2019-08-20 Oakley, Inc. Mounting mechanism for eyewear
WO2017062813A1 (en) 2015-10-09 2017-04-13 Oakley, Inc. Headworn supports with passive venting and removable lens
US9709817B2 (en) 2015-12-07 2017-07-18 Oakley, Inc. Eyewear retention devices and methods
US10156734B2 (en) 2015-12-08 2018-12-18 Oakley, Inc. Eyewear traction devices and methods
US10359642B2 (en) 2016-04-22 2019-07-23 Oakley, Inc. Mounting mechanism for eyewear

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2529012C3 (de) * 1975-06-28 1980-07-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltung zur automatischen Dynamik-Kompression oder -Expansion
DE2619192A1 (de) * 1976-04-30 1977-11-17 Licentia Gmbh Schaltung zur automatischen dynamik-kompression oder -expansion
DE2812431A1 (de) * 1978-03-22 1979-09-27 Licentia Gmbh Verstaerker mit veraenderbarem uebertragungsmass
DD140100A1 (de) * 1978-11-27 1980-02-06 Ralph Altmann Schaltungsanordnung zur steuerung einer verstaerkung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2559974A1 (fr) * 1984-02-21 1985-08-23 Mine Safety Appliances Co Circuit de linearisation a point de rupture unique
EP2636992A1 (de) * 2012-03-08 2013-09-11 Mitutoyo Corporation Oberflächentexturmessvorrichtung, Steuerung für ein Oberflächentexturmessgerät und Verfahren zur Steuerung davon
US9151589B2 (en) 2012-03-08 2015-10-06 Mitutoyo Corporation Surface texture measurement device, controller for surface texture measurement device, and method for controlling the same

Also Published As

Publication number Publication date
DE2941961A1 (de) 1981-04-30
FR2468254A1 (fr) 1981-04-30
JPS5666915A (en) 1981-06-05

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)