GB1027727A - Improvements in or relating to electronic method and apparatus for control of displacements - Google Patents
Improvements in or relating to electronic method and apparatus for control of displacementsInfo
- Publication number
- GB1027727A GB1027727A GB4914463A GB4914463A GB1027727A GB 1027727 A GB1027727 A GB 1027727A GB 4914463 A GB4914463 A GB 4914463A GB 4914463 A GB4914463 A GB 4914463A GB 1027727 A GB1027727 A GB 1027727A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stage
- signal
- transition
- trigger
- movement
- 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
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
- G05B19/21—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device
- G05B19/23—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control
-
- 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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
- G05B19/21—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/41—Servomotor, servo controller till figures
- G05B2219/41122—Mechanical vibrations in servo, antihunt also safety, stray pulses, jitter
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/41—Servomotor, servo controller till figures
- G05B2219/41245—Discrimination of direction
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
1,027,727. Electric selective signalling ROCHAR ELECTRONIQUE. Dec. 12, 1963 [Dec. 12, 1962], No. 49144/63. Heading G4H. In a system for controlling the position of an object of the kind in which two pulse trains A, B, Fig. 2, are generated representing, by the number of pulses, the displacement of the object and by the phase relationship between the two trains the direction of movement, signals are obtained by gating to represent the four possible conditions or zones of movement: A#, AB, #B, ##, trigger stages being set by each of these conditions and reset by the opposite, a counting or deducting signal being produced only when a trigger stage is set so that oscillations about a transition point do not affect the counter. The input signals are applied to diode gates 50, 51; 53, 54; 56, 57; 59, 60, Fig. 5, and the output from each gate causes a corresponding transistor 66, 69 to conduct. In trigger 76, 77 transistor 76 is set by the AB signal and 77 by the opposite ##. Similarly transistor 80 is set by signal A# and 81 by #B the two triggers are combined in two groups of diode gates 82-85 and 86-89 to produce counting or deducting signals on leads 18, 19 respectively. When a trigger stage, e.g. 76 (AB) is set it provides a signal through resistor 94 to enable a diode gate 82 in a group connected to the " count " output 18 and via resistor 105 to 86 in a second group connected to the " deduct " output. If the next transition is to #, B representing movement in the forward direction trigger stage 81 is set and a pulse via capacitor 96 passes through gate 82 to terminal 18. If it had been a backward transition (to A#) trigger stage 80 would have been set and a pulse passed via capacitor 104 and gate 86 to the deduct output 19. If movement is back into a zone just previously occupied the corresponding trigger stage being already set gives no pulse so that no counting or deducting operation takes place. In Fig. 3 the four conditions are represented as four quadrants and movement of the object by the arrowed line. The first transition from #B to ## causes a counting signal (C), since trigger stage 77 is set by #, B. The next transition from #, # to A# sets trigger stage 80 and produces a counting pulse. Backward movement to ## produces no deducting signal because the corresponding trigger stage is still set. Similarly, forward movement to A# also produces no signal since the stage corresponding to A# is also set. Oscillation about a transition does not, therefore, affect the counter, since both corresponding trigger stages remain set. However movement to the next quadrant AB sets the corresponding stage and produces a count signal. The stage corresponding to the opposite condition #, # is reset. When the direction reverses, e.g. from #B to AB the transition produces no deduct signal because the AB stage is already set but stage A# having been reset by setting of stage #B is set again by the next transition and a deduct signal (D) is produced. The effect is to give the system a lost motion of one transition so that local oscillations are ignored.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR918583A FR82871E (en) | 1962-12-12 | 1962-12-12 | Method and device for reversible control of a displacement by counting pulses |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1027727A true GB1027727A (en) | 1966-04-27 |
Family
ID=8792831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4914463A Expired GB1027727A (en) | 1962-12-12 | 1963-12-12 | Improvements in or relating to electronic method and apparatus for control of displacements |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR82871E (en) |
GB (1) | GB1027727A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2320591A1 (en) * | 1975-08-04 | 1977-03-04 | Gd Spa | AUTOMATIC CYCLIC TYPE MACHINE FOR PACKAGING PRISMATICALLY SHAPED ARTICLES |
-
1962
- 1962-12-12 FR FR918583A patent/FR82871E/en not_active Expired
-
1963
- 1963-12-12 GB GB4914463A patent/GB1027727A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2320591A1 (en) * | 1975-08-04 | 1977-03-04 | Gd Spa | AUTOMATIC CYCLIC TYPE MACHINE FOR PACKAGING PRISMATICALLY SHAPED ARTICLES |
Also Published As
Publication number | Publication date |
---|---|
FR82871E (en) | 1964-04-30 |
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