GB1241513A - Improvements in control systems - Google Patents
Improvements in control systemsInfo
- Publication number
- GB1241513A GB1241513A GB120569A GB120569A GB1241513A GB 1241513 A GB1241513 A GB 1241513A GB 120569 A GB120569 A GB 120569A GB 120569 A GB120569 A GB 120569A GB 1241513 A GB1241513 A GB 1241513A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- motor
- tachogenerator
- jan
- amplifier
- 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
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
- G05D3/1445—Control of position or direction using feedback using an analogue comparing device with a plurality of loops
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
1,241,513. Automatic speed control. RANK ORGANIZATION Ltd. Jan. 5, 1970 [Jan. 8, 1969], No. 1205/69. Heading G3R. A servosystem is responsive to a demand signal and a feedback signal, the latter being constituted by a weighted mean of a signal derived directly from an actuator such as an electric motor, and of a signal obtained from the actuator by way of a transducer. In the system shown, a motor 2 driving a load 12 is energized through an amplifier 4. The speed of the motor is controlled by a demand unit 16, the signal V D from which is compared in the amplifier with a feedback signal V A to produce an error signal. A tachogenerator 6 is mechanically coupled to the motor 2 to give a signal V T indicative of the motor speed, and a further signal V M , which may be the back e. m.f. is taken directly from the motor 2. After processing by a phase balancing circuit B and filter F, the signal V M is combined with the signal V T in a weighting circuit W to produce the signal V A . Preferably, a constant or null feedback signal is provided in the tachogenerator resonance region using frequency-dependent weighting. The filter F is necessary because of noise associated with the signal V M , and may be of the R-C bandpass type, Figs. 2, 3 (not shown).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB120569A GB1241513A (en) | 1969-01-08 | 1969-01-08 | Improvements in control systems |
| DE19702000705 DE2000705A1 (en) | 1969-01-08 | 1970-01-08 | Servo control system |
| FR7000581A FR2033227A1 (en) | 1969-01-08 | 1970-01-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB120569A GB1241513A (en) | 1969-01-08 | 1969-01-08 | Improvements in control systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1241513A true GB1241513A (en) | 1971-08-04 |
Family
ID=9717985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB120569A Expired GB1241513A (en) | 1969-01-08 | 1969-01-08 | Improvements in control systems |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2000705A1 (en) |
| FR (1) | FR2033227A1 (en) |
| GB (1) | GB1241513A (en) |
-
1969
- 1969-01-08 GB GB120569A patent/GB1241513A/en not_active Expired
-
1970
- 1970-01-08 FR FR7000581A patent/FR2033227A1/fr active Pending
- 1970-01-08 DE DE19702000705 patent/DE2000705A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2000705A1 (en) | 1970-07-23 |
| FR2033227A1 (en) | 1970-12-04 |
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