GB1296213A - - Google Patents
Info
- Publication number
- GB1296213A GB1296213A GB3088469A GB1296213DA GB1296213A GB 1296213 A GB1296213 A GB 1296213A GB 3088469 A GB3088469 A GB 3088469A GB 1296213D A GB1296213D A GB 1296213DA GB 1296213 A GB1296213 A GB 1296213A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- ship
- movement
- servomotor
- course
- 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
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000002085 persistent effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/0206—Control of position or course in two dimensions specially adapted to water vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
Abstract
1296213 Automatic steering control DECCA Ltd 19 Feb 1970 [18 June 1969] 30884/69 Heading G3R An electrical signal for steering a ship is formed by combining a control signal with a feedback signal from a capacitor the charge on which is increased or decreased incrementally according to the direction and extent of movement of a steering motor and also tends to decrease with the passage of time. As shown, any difference between a compass signal 11 corresponding to the course of a ship and a signal 10 corresponding to a desired course is applied through a suitable non-linear circuit 13 and an amplifier 15 to control an electric servomotor 16 operating rudder 18 to correct the course of the ship. Movement of a slotted disc 19 driven by servomotor 16 corresponds to the integral of the control signal applied to servomotor 16 and, by interrupting light from a lamp 21 falling on photocells 20 associated with a discriminator 22, produces pulses which add or subtract increments of charge to a condenser 25 according to the sense of movement to produce a voltage corresponding to the integral. This voltage is applied as negative feedback to the input of amplifier 15 but, to permit offset of the rudder if necessary to counteract persistent unbalance effects, a leakage resistor 27 is connected across the condenser to reduce the feedback as a function of time.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3088469 | 1969-06-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1296213A true GB1296213A (en) | 1972-11-15 |
Family
ID=10314637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3088469A Expired GB1296213A (en) | 1969-06-18 | 1969-06-18 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1296213A (en) |
-
1969
- 1969-06-18 GB GB3088469A patent/GB1296213A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2135090B3 (en) | ||
GB1423074A (en) | Signal generating circuit | |
GB1420669A (en) | Electrochromic mirror | |
GB1322219A (en) | Amplifiers | |
GB1373503A (en) | Guided-vehicle systems | |
GB1215251A (en) | Improvements in or relating to process controllers | |
JPS5017685A (en) | ||
GB1137981A (en) | Improvements in and relating to control apparatus | |
IE33939L (en) | Transistor variable gain circuit | |
GB1255225A (en) | A control circuit for an alternating current motor | |
GB1162412A (en) | Aircraft Cabin Pressure Control System | |
GB1367266A (en) | Ramp signal generator | |
GB1296213A (en) | ||
GB1480055A (en) | Control circuit for an electrically driven vehicle | |
GB1325027A (en) | Circuit arrangement for forming the means value of several input voltages | |
GB1390435A (en) | Accelerometer | |
GB1182284A (en) | Automatic Control Appraatus. | |
GB1453449A (en) | Manual/automatic process controller | |
JPS55141996A (en) | Servomotor controlling system | |
GB1037709A (en) | Signal limiting and threshold means in electronic computing and control systems | |
GB1430775A (en) | Light intenstity integrating and memory circuit | |
US3134060A (en) | Servo motor control system | |
GB1369715A (en) | Timing circuits | |
GB1243246A (en) | Volume controller | |
SU574709A1 (en) | Pulsed d.c. voltage-stabilizer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |