DE2722844A1 - CHANGING ELECTRONIC PULSE GENERATOR - Google Patents
CHANGING ELECTRONIC PULSE GENERATORInfo
- Publication number
- DE2722844A1 DE2722844A1 DE19772722844 DE2722844A DE2722844A1 DE 2722844 A1 DE2722844 A1 DE 2722844A1 DE 19772722844 DE19772722844 DE 19772722844 DE 2722844 A DE2722844 A DE 2722844A DE 2722844 A1 DE2722844 A1 DE 2722844A1
- Authority
- DE
- Germany
- Prior art keywords
- light
- grid
- pulse generator
- pulse
- emitting
- 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.)
- Granted
Links
- 230000007704 transition Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 claims description 2
- 230000004913 activation Effects 0.000 claims 2
- 230000000903 blocking effect Effects 0.000 claims 2
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 230000002779 inactivation Effects 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 2
- 239000000463 material Substances 0.000 claims 1
- 239000004020 conductor Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
- G01F15/061—Indicating or recording devices for remote indication
- G01F15/063—Indicating or recording devices for remote indication using electrical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/36—Forming the light into pulses
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
- G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
- G01G23/37—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting
- G01G23/375—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting during the movement of a coded element
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/22—Analogue/digital converters pattern-reading type
- H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
- H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
- H03M1/30—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental
- H03M1/303—Circuits or methods for processing the quadrature signals
- H03M1/305—Circuits or methods for processing the quadrature signals for detecting the direction of movement
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/60—Analogue/digital converters with intermediate conversion to frequency of pulses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Fluid Mechanics (AREA)
- Optical Transform (AREA)
- Measuring Volume Flow (AREA)
- Radiation-Therapy Devices (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Fire-Detection Mechanisms (AREA)
Description
- i- - i-
len Öffnung koaxiale Reihe von identischen, abstandsgleichen Löchern 3a, die von Speichen 3b in der Scheibe definiert sind. Die Scheibe wird in ein fotoelektrisches Abtastsystem eingesetzt, d.h. zwischen einem festen, lichtaussendenden Glied und einem festen, lichtempfindlichen Glied, so dass die Lochreihe mit diesen Gliedern auf einer Höhe liegt. Im dargestellton Ausführungsbeispiel sind die Löcher 3a vierkantig und gegen den Mittelpunkt der Scheibe verjüngt.len opening coaxial series of identical, equidistant Holes 3a defined by spokes 3b in the disc. The disc is inserted into a photoelectric scanning system, i.e. between a solid, light-emitting member and a solid, photosensitive member, so that the row of holes is on the same level as these limbs. In the illustrated embodiment, the holes 3a are square and opposite tapers the center of the disc.
Erfindungsaemäss hat die Scheibe 1 eine zur genannten Lochreihe konzentrische, zweite Reihe von identischen, vierkantigen und abstandsgleichen Löchern 4a, die von Speichen 4b in der Scheibe definiert sind. Im dargestellten Ausführungsbeispiel ist die zweite Lochreihe unter der ersten Lochreihe angeordnet, und ihre Löcher 4a sind im wesentlichen gleich breit und derselben Anzahl wie die Löcher 3a der ersten Reihe. Ausserdem sind die Löcher 4a in Umfangrichtung schmaler als die Löcher 3a der ersten Reihe. Die Symmetrieachsen in radialer Richtung für jedes Loch 3a und das innerhalb liegende Loch 4a liegen auf demselben Scheibenhalbmesser.According to the invention, the disk 1 has one of the aforementioned Row of holes concentric, second row of identical, square and equidistant holes 4a, which are formed by spokes 4b are defined in the disc. In the illustrated embodiment, the second row of holes is below the first row of holes arranged, and their holes 4a are substantially the same width and the same number as the holes 3a of the first row. In addition, the holes 4a are narrower in the circumferential direction than the holes 3a of the first row. The axes of symmetry in radial Direction for each hole 3a and the inner hole 4a lie on the same disk radius.
Die zweite Lochreihe ist in derselben Weise wie die erste Lochreihe einem fotoelektischen Abtastsystem zugeordnet, d.h. sie ist zwischen einem festen, lichtaussendenden Glied und einem festen, lichtempfindlichen Glied und auf derselben Höhe wie diese Glieder angebracht.The second row of holes is assigned to a photoelectric scanning system in the same way as the first row of holes, i.e. it is between a solid, light-emitting member and a solid, photosensitive member and on at the same height as these links.
Fig. 2 zeigt ein Schaltbild für den erfindungsmässigen Impulsgeber, wo die Lochreihen durch gestrichelte Linien 3 und 4 dargestellt sind. Das diesen Lochreihen zugeordnete, lichtaussendende Glied, beispielsweise eine Leuchtdiode, trägt die Bezugsziffer 5 bzw. 6. Das entsprechende lichtempfindliche Glied 7 bzw. 8, beispielsweise eine Fotodiode, ein Fototransistor oder -widerstand, bildet den Eingang zu einem Verstärker 9 an sich bekannten Typs, beispielsweise SIEMENS TCS 105, mit einem digitalen Direktausgang 10 und einem digital invertierten Ausgang 11. Der Direktausgang 10, von dem die Impulse an den Volumen/Preisindikator weitergegeben werden, ist mittels eines Leiters 12 mit dem lichtaussendenden Glied 5 verbunden, während der invertierteFig. 2 shows a circuit diagram for the inventive Pulse generator where the rows of holes are shown by dashed lines 3 and 4. The assigned to these rows of holes, light-emitting element, for example a light-emitting diode, has the reference number 5 or 6. The corresponding light-sensitive Member 7 or 8, for example a photodiode, a phototransistor or resistor, forms the input to an amplifier 9 of known type, for example SIEMENS TCS 105, with a digital direct output 10 and a digitally inverted output 11. The direct output 10, from which the pulses are sent to the volume / price indicator are passed, is connected by means of a conductor 12 to the light-emitting member 5, while the inverted
709881/0660709881/0660
5 27228U 5 27228U
Ausgang 11 mittels eines Leiters 12 mit dem lichtaussendenden Glied 6 verbunden ist. Diese lichtaussendenden Glieder 5 und 6 werden von einer Gleichstromquelle 14 mit Strom versorgt.Output 11 is connected to the light-emitting element 6 by means of a conductor 12. These light emitting members 5 and 6 are supplied with power from a direct current source 14.
Ist das lichtempfindliche Glied 7 desjenigen Typs, welcher gegen den üebergang vom Hellen ins Dunkle empfindlich ist, d.h. von einem Loch 3a zu einer Speiche 3b, und ist das lichtempfindliche Glied 8 desjenigen Typs, welcher gegen den üebergang vom Dunklen ins Helle empfindlich ist, d.h. von einer Speiche 4b zu einem Loch 4a, so wird die Funktion des Impulsgebers sofort einleuchtend:Is the light-sensitive member 7 of the type which is sensitive to the transition from light to dark is, i.e. from a hole 3a to a spoke 3b, and the photosensitive member 8 is of the type which is sensitive to the transition from dark to light, i.e. from a spoke 4b to a hole 4a, the Function of the pulse generator immediately evident:
Wenn das Licht von einem Loch 3a zu einer Speiche 3b passiert, geht der Direktausgang 10 vom Zustand 0 in den Zustand 1 über, wobei dieser Impuls über den Leiter 12 das lichtaussendende Glied 5 inaktiviert. Der invertierte Ausgang 11 erfährt dabei eine Zustandsänderung von 1 in 0 und aktiviert über den Leiter 13 das lichtaussendende Glied 6. Der inaktivierte Zustand des Gliedes 5 und der aktivierte Zustand des Gliedes 6 werden solange aufrechterhalten, bis das Licht vom lichtaussendenden Glied 6 auf das im Drehsinn der Scheibe 1 nächstfolgende Loch 4a in der unteren Lochreihe trifft, wobei die Ausgänge 10 und 11 eine Zustandsänderung von 1 in 0 bzw. von 0 in 1 erfahren, so dass das Glied 5 aktiviert und das Glied 6 inaktiviert wird, bis das Licht von dem der oberen Lochreihe zugeordneten, lichtaussendenden Glied den Üebergang vom Loch 3a zur Speiche 3b passiert.When the light passes from a hole 3a to a spoke 3b, the direct output 10 goes from state 0 to State 1 over, wherein this pulse via the conductor 12 inactivates the light-emitting element 5. The inverted output 11 experiences a change of state from 1 to 0 and activates the light-emitting element 6 via the conductor 13. The inactivated state of member 5 and the activated state of member 6 are maintained as long as until the light from the light-emitting element 6 hits the next hole 4a in the lower one in the direction of rotation of the disk 1 Row of holes hits, whereby the outputs 10 and 11 experience a change of state from 1 to 0 or from 0 to 1, so that the Member 5 is activated and member 6 is inactivated until the light emits light from the light emitting device associated with the upper row of holes Link passed the transition from hole 3a to spoke 3b.
Die obige Funktionsbeschreibung zeigt, dass wenn die Scheibe 1 nach Abschalten der Pumpe Schwingungen von z.B. dem Pumpenmotor ausgesetzt wird, so dass sie sich in ihrer Ebene hin und her um ihre Mittelachse dreht, sich die Scheibe, nachdem das Licht vom Glied 5 von einem Loch 3a zur nächsten Speiche 3b passiert hat, im Winkelbereich CC drehen kann, d.h. dem von einer Speiche 4b definierten Winkelbereich, ohne dass am Direktausgang 10 ein Impuls erhalten wird. Ebenso kann die Scheibe, nachdem das Licht vom Glied 6 von einer Speiche 4b zum nächsten Loch 4a passiert hat, sich im Winkelbereich β drehen, d.h. dem von den Begrenzungs-The above functional description shows that when the disk 1 is exposed to vibrations from, for example, the pump motor after the pump has been switched off, so that it rotates back and forth in its plane around its central axis, the disk rotates after the light from the member 5 comes from a hole 3a has passed to the next spoke 3b, can rotate in the angular range CC , ie the angular range defined by a spoke 4b, without a pulse being received at the direct output 10. Likewise, after the light from member 6 has passed from one spoke 4b to the next hole 4a, the disc can rotate in the angular range β , ie that of the limiting
709881/0660709881/0660
Seiten eines Lochs 3a definierten Winkelbereich, ohne dass am Direktausgang 10 ein Signal erhalten wird.Sides of a hole 3a defined angular range without a signal being received at the direct output 10.
Der erfindungsmässige Impulsgeber stellt eine wirkungsvolle Ergänzung trage arbeitender Rücklaufsperren dar, d.h. Sperren, die ein Drehen der Scheibe in der falschen Richtung und somit eine falsche Anzeige verhindern sollen.The inventive pulse generator is an effective one Supplement to working backstops, i.e. locks that prevent the disk from rotating in the wrong direction and thus should prevent a false display.
Die Erfindung kann selbstverständlich in vielerlei Weise im Rahmen des Erfindungsgedankens abgeändert werden. Somit kann die Scheibe aus einer lichtdurchlässigen Scheibe mit Schwärzungen statt Speichen bestehen, um lichtundurchlässige Felder zu erzeugen. Abwechselnd hintereinander angeordnete, lichtdurchlässige und lichtundurchlässige Felder werden oft als Raster bezeichnet, wie dies in den Patentansprüchen der Fall ist. Die Raster brauchen natürlich nicht kreisförmig zu sein oder auf einer kreisförmigen Scheibe angeordnet zu sein; sie können auch streifenförmig oder auf einem Streifen angeordnet sein, der sich an den fotoelektrischen Abtastgliedern vorbeibewegt.The invention can of course be modified in many ways within the scope of the inventive concept. Thus, the disc can consist of a translucent disc with blackenings instead of spokes in order to be opaque Generate fields. Alternating, translucent and opaque fields arranged one behind the other are often referred to as a grid, as is the case in the claims. Of course, the grids don't need them to be circular or to be arranged on a circular disc; they can also be striped or be arranged on a strip which moves past the photoelectric scanning members.
709881/0660709881/0660
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7607443A SE400002B (en) | 1976-06-30 | 1976-06-30 | ALTERNATIVE ELECTRONIC PULSE SENSOR |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2722844A1 true DE2722844A1 (en) | 1978-01-05 |
DE2722844C2 DE2722844C2 (en) | 1982-10-28 |
Family
ID=20328336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2722844A Expired DE2722844C2 (en) | 1976-06-30 | 1977-05-20 | Incremental encoder |
Country Status (6)
Country | Link |
---|---|
DE (1) | DE2722844C2 (en) |
DK (1) | DK150837C (en) |
FI (1) | FI63126C (en) |
GB (1) | GB1563642A (en) |
NO (1) | NO144028C (en) |
SE (1) | SE400002B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3942857C1 (en) * | 1989-12-23 | 1991-05-16 | Schwelm Tanksysteme Gmbh, 5830 Schwelm, De | Petrol pump with rotating piston measurer - driving light-interrupting disc for control generating light pulses for price calculator |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4841316A (en) * | 1988-02-17 | 1989-06-20 | The Gerber Scientific Instrument Company | Photohead system for positioning an aperture wheel and method of making an aperture disc |
-
1976
- 1976-06-30 SE SE7607443A patent/SE400002B/en not_active IP Right Cessation
-
1977
- 1977-05-20 DE DE2722844A patent/DE2722844C2/en not_active Expired
- 1977-06-14 GB GB24839/77A patent/GB1563642A/en not_active Expired
- 1977-06-16 NO NO772127A patent/NO144028C/en unknown
- 1977-06-21 FI FI771935A patent/FI63126C/en not_active IP Right Cessation
- 1977-06-29 DK DK291377A patent/DK150837C/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
DE-Z.: Elektrotechnik, 57, (1975), Heft 10 vom 22 Mai, Seiten 35-37 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3942857C1 (en) * | 1989-12-23 | 1991-05-16 | Schwelm Tanksysteme Gmbh, 5830 Schwelm, De | Petrol pump with rotating piston measurer - driving light-interrupting disc for control generating light pulses for price calculator |
Also Published As
Publication number | Publication date |
---|---|
FI63126B (en) | 1982-12-31 |
GB1563642A (en) | 1980-03-26 |
NO772127L (en) | 1978-01-02 |
SE400002B (en) | 1978-03-06 |
SE7607443L (en) | 1977-12-31 |
NO144028C (en) | 1981-06-03 |
FI63126C (en) | 1983-04-11 |
DK291377A (en) | 1977-12-31 |
DE2722844C2 (en) | 1982-10-28 |
NO144028B (en) | 1981-02-23 |
FI771935A (en) | 1977-12-31 |
DK150837C (en) | 1988-01-18 |
DK150837B (en) | 1987-06-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OD | Request for examination | ||
8128 | New person/name/address of the agent |
Representative=s name: BAUMANN, E., DIPL.-PHYS., PAT.-ANW., 8011 HOEHENKI |
|
D2 | Grant after examination | ||
8339 | Ceased/non-payment of the annual fee |