NL238727A - - Google Patents

Info

Publication number
NL238727A
NL238727A NL238727DA NL238727A NL 238727 A NL238727 A NL 238727A NL 238727D A NL238727D A NL 238727DA NL 238727 A NL238727 A NL 238727A
Authority
NL
Netherlands
Application number
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.)
Publication date
Publication of NL238727A publication Critical patent/NL238727A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/38—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers
    • H03F3/387—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers with semiconductor devices only
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B1/00—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values
    • G05B1/01—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric
    • G05B1/02—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric for comparing analogue signals
    • G05B1/027—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric for comparing analogue signals using impedance bridges
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Networks Using Active Elements (AREA)
  • Amplifiers (AREA)
NL238727D 1958-04-30 NL238727A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US732102A US2956234A (en) 1958-04-30 1958-04-30 Industrial process control apparatus

Publications (1)

Publication Number Publication Date
NL238727A true NL238727A (fr) 1900-01-01

Family

ID=24942195

Family Applications (1)

Application Number Title Priority Date Filing Date
NL238727D NL238727A (fr) 1958-04-30

Country Status (3)

Country Link
US (1) US2956234A (fr)
GB (1) GB857984A (fr)
NL (1) NL238727A (fr)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3005163A (en) * 1958-10-06 1961-10-17 Fischer & Porter Co Electronic controller
US3001143A (en) * 1959-02-04 1961-09-19 Avco Mfg Corp Low noise radio frequency amplifier
US3003124A (en) * 1959-04-15 1961-10-03 Gen Dynamics Corp Bridge modulator
US3073956A (en) * 1959-04-30 1963-01-15 Bendix Corp Nuclear instrumentation
US3081425A (en) * 1959-08-28 1963-03-12 Honeywell Regulator Co Electronic controller
US3277389A (en) * 1959-12-30 1966-10-04 Douglas A Venn Afc for plural oscillators
US3183455A (en) * 1960-08-25 1965-05-11 Electro Mechanical Res Inc Automatically stabilized oscillator circuits
US3119055A (en) * 1960-09-06 1964-01-21 United Aircraft Corp Speed responsive control system
US3189839A (en) * 1961-02-10 1965-06-15 Wilfried O Eckhardt High speed amplifying modulationdemodulation logic
US3197711A (en) * 1961-05-18 1965-07-27 Foxboro Co Means for preventing reset wind-up in electronic control apparatus
US3235791A (en) * 1961-09-05 1966-02-15 Pan American Petroleum Corp Gain controls using silicon diodes, a d.c. control source and an a.c. bias source
US3231821A (en) * 1961-11-08 1966-01-25 Gen Electric Co Ltd Electric comparator circuits
US3201694A (en) * 1961-12-14 1965-08-17 Leonard R Kalm Phase-neutralized limiter, and transmitter neutralization therewith
US3177427A (en) * 1962-02-26 1965-04-06 Phillips Petroleum Co Capacitance bridge compensating circuit utilizing voltage sensitive capacitors
US3260956A (en) * 1963-04-02 1966-07-12 Gen Electric Start-up circuit for process control apparatus
DE1224369B (de) * 1963-07-10 1966-09-08 Ceskoslovenska Akademie Ved Verstaerker mit einem nichtlinearen dielektrischen Element
US3408584A (en) * 1963-10-14 1968-10-29 Motorola Inc Self-excited linear dc amplifier having a bridge input portion
US3360661A (en) * 1963-11-14 1967-12-26 Honeywell Inc Automatic and manual switching system in an electronic controller
US3331016A (en) * 1964-05-08 1967-07-11 Barber Colman Co Oscillator controller with reset or rate action
US3344283A (en) * 1964-08-03 1967-09-26 Statham Instrument Inc Amplifying system with roll off frequency and roll off rate of amplified signal predetermined
DE1297877B (de) * 1965-05-29 1969-06-19 Hartmann & Braun Ag Kapazitiver Winkelstellungsgeber
US3405366A (en) * 1965-06-30 1968-10-08 George A Philbrick Res Es Inc Electronic amplifier
US3435375A (en) * 1965-09-20 1969-03-25 Motorola Inc Controller having fet bridge circuit
US3467874A (en) * 1965-11-15 1969-09-16 Foxboro Co Solid state process controller providing time-variant effects
US3466558A (en) * 1966-09-19 1969-09-09 Burdick Corp Measuring apparatus
US3465259A (en) * 1966-09-27 1969-09-02 Us Army Low drift d-c operational amplifier
US3495180A (en) * 1966-12-09 1970-02-10 Itt Amplitude control circuit
US3601711A (en) * 1967-04-12 1971-08-24 Foxboro Co Multiple-controller system with improved automatic-to-manual transfer means
US3550014A (en) * 1969-12-22 1970-12-22 Foxboro Co Electronic control apparatus having improved transfer means
DE2004848A1 (de) * 1970-02-03 1971-08-19 Siemens Ag Schaltungsanordnung zum Ermitteln von Fehler oder Inhomogemtatsstellen auf elektrischen Leitungen bzw Kabeln
US4587437A (en) * 1984-03-19 1986-05-06 Rockwell International Corporation Coupling/decoupling capacitor multiplier

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2193966A (en) * 1936-08-05 1940-03-19 Jones Cyril Edward Palmer Volume range controlling arrangement employing thermionic amplifiers
US2182377A (en) * 1937-05-01 1939-12-05 Radio Patents Corp Method and means for tuning electric oscillatory circuits
US2191315A (en) * 1937-11-25 1940-02-20 Radio Patents Corp Electric translation circuit
US2448564A (en) * 1942-07-24 1948-09-07 Sperry Corp Motor control circuits
US2624796A (en) * 1946-06-25 1953-01-06 Norman B Saunders Signal transducer with distortion compensating amplifier

Also Published As

Publication number Publication date
GB857984A (en) 1961-01-04
US2956234A (en) 1960-10-11

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