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
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)
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)
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 |
US3392339A (en) * | 1963-07-10 | 1968-07-09 | Ceskoslovenska Akademie Ved | Electric amplifiers with a non-linear dielectric 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)
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 |
-
0
- NL NL238727D patent/NL238727A/xx unknown
-
1958
- 1958-04-30 US US732102A patent/US2956234A/en not_active Expired - Lifetime
-
1959
- 1959-04-21 GB GB13570/59A patent/GB857984A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2956234A (en) | 1960-10-11 |
GB857984A (en) | 1961-01-04 |