GB1140235A - Improved method of monitoring amplifier gain - Google Patents

Improved method of monitoring amplifier gain

Info

Publication number
GB1140235A
GB1140235A GB26730/67A GB2673067A GB1140235A GB 1140235 A GB1140235 A GB 1140235A GB 26730/67 A GB26730/67 A GB 26730/67A GB 2673067 A GB2673067 A GB 2673067A GB 1140235 A GB1140235 A GB 1140235A
Authority
GB
United Kingdom
Prior art keywords
improved method
amplifier gain
monitoring amplifier
monitoring
gain
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
Application number
GB26730/67A
Inventor
Richard John Buchanan
Arpalos Kyprou Kyprianou
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB26730/67A priority Critical patent/GB1140235A/en
Priority to DE19681762373 priority patent/DE1762373B2/en
Publication of GB1140235A publication Critical patent/GB1140235A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/10—Control of transmission; Equalising by pilot signal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the reactants
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
GB26730/67A 1966-05-23 1967-06-09 Improved method of monitoring amplifier gain Expired GB1140235A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB26730/67A GB1140235A (en) 1966-05-23 1967-06-09 Improved method of monitoring amplifier gain
DE19681762373 DE1762373B2 (en) 1966-05-23 1968-06-05 PROCEDURE FOR DISPLAYING THE PILL RESISTANCE OF AN INDIRECTLY HEATED THERMISTOR USED AS AN CONTROLLER FOR THE PILOT LEVEL CONTROL OF MESSAGE TRANSMISSION SYSTEMS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55224966A 1966-05-23 1966-05-23
GB26730/67A GB1140235A (en) 1966-05-23 1967-06-09 Improved method of monitoring amplifier gain

Publications (1)

Publication Number Publication Date
GB1140235A true GB1140235A (en) 1969-01-15

Family

ID=26258395

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26730/67A Expired GB1140235A (en) 1966-05-23 1967-06-09 Improved method of monitoring amplifier gain

Country Status (2)

Country Link
DE (1) DE1762373B2 (en)
GB (1) GB1140235A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2837728A1 (en) * 1977-08-31 1979-03-08 Fujitsu Ltd INPUT LEVEL MONITORING SYSTEM FOR A LEVEL CONTROL DEVICE

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2322068C3 (en) * 1973-05-02 1983-03-03 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Circuit arrangement for obtaining a direct voltage as a measure of the change in attenuation in level-regulated communication systems
DE2753424B2 (en) * 1977-11-30 1979-09-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Device for displaying the manipulated variable occurring in a pilot control loop

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2837728A1 (en) * 1977-08-31 1979-03-08 Fujitsu Ltd INPUT LEVEL MONITORING SYSTEM FOR A LEVEL CONTROL DEVICE
US4185248A (en) * 1977-08-31 1980-01-22 Fujitsu Limited Input level supervisory system for level regulator

Also Published As

Publication number Publication date
DE1762373A1 (en) 1970-04-30
DE1762373B2 (en) 1973-02-22

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