DE951620C - Device or encoder machine for displaying rotary movements - Google Patents
Device or encoder machine for displaying rotary movementsInfo
- Publication number
- DE951620C DE951620C DEA19850A DEA0019850A DE951620C DE 951620 C DE951620 C DE 951620C DE A19850 A DEA19850 A DE A19850A DE A0019850 A DEA0019850 A DE A0019850A DE 951620 C DE951620 C DE 951620C
- Authority
- DE
- Germany
- Prior art keywords
- yokes
- poles
- magnetic
- wound
- stator
- 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
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/46—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage
- G01P3/465—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage by using dynamo-electro tachometers or electric generator
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
Es sind Einrichtungen zur Anzeige von Drehbewegungen bekannt, welche in Abhängigkeit von der festzustellenden Bewegung ideen magnetischen Widerstand eines oder mehrerer Kreise ändern, wodurch die in Spulen induzierte Spannung verändert und zur Anzeige gebracht wird. Solche Einrichtungen haben den Nachteil, daß diese Anderungen des magnetischen Widerstandes und daher auch die Änderungen der induzierten Spannung größenordnungsmäßig nur klein sein können. Es müssen also zur Anzeige entweder empfindliche und daher für den rauhen Betrieb wenig geeignete Anzeigeinstrumente verwendet oder gegebenenfalls die zu messenden Spannungen vor Anzeige durch eigene Apparate oder Einrichtungen verstärkt werden. There are devices for displaying rotary movements known which depending on the movement to be detected, ideas of magnetic resistance change one or more circuits, thereby changing the voltage induced in coils and is brought to the display. Such facilities have the disadvantage that this Changes in the magnetic reluctance and therefore also the changes in the induced Voltage of the order of magnitude can only be small. So it need to be displayed either sensitive and therefore unsuitable display instruments for rough operation used or, if necessary, the voltages to be measured before display by your own Apparatus or facilities are reinforced.
Drehzahlgeber der bekannten Bauweise mit permanenten Magneten als Anker können zur Anzeige kleinster Drehbewegungen gleichfalls nicht verwendet werden, weil in diesem Falle die induzierte Spannung zu gering ist. Speed sensor of the known design with permanent magnets as Anchors can also not be used to display the smallest rotary movements, because in this case the induced voltage is too low.
Die Erfindung betrifft eine Einrichtung bzw. The invention relates to a device or
Gebermaschine zur Anzeige von Drehbewegungen und/oder des Gleichlaufs und/oder der Drehzahl von Maschinen, insbesondere von elektrischen Trieb fahrzeugen, aus einem feststehenden und einem rotierenden Teil bestehend. Erfindungsgemäß ist die Einrichtung so ausgebildet, daß die Erregung in axialer Richtung durch eine mit Gleich- oder Wechselstrom gespeiste feststehende Spule erfolgt und daß im Stator abwechselnd bewickelte und unbewickelte magnetische Rückschlüsse derart angeordnet sind, daß der magnetilsche Widerstand im wesentlichen unabhängig von der Drehbewegung ist. Dadurch wird ein Geberkreis geschaffen, in welchen der magnetische Fluß abhängig von der anzuzeigenden Bewegung eintritt. Encoder machine for displaying rotary movements and / or synchronism and / or the speed of machines, especially electric traction vehicles, consisting of a fixed and a rotating part. According to the invention the device designed so that the excitation in the axial direction by a with direct or alternating current fed fixed coil takes place and that in the stator alternately wound and unwound magnetic conclusions arranged in this way are that the magnetic resistance is essentially independent of the rotational movement is. This creates an encoder circuit in which the magnetic flux is dependent occurs from the movement to be displayed.
Während der anzuzeigenden Drehbewegung bleibt der magnetische Widerstand des Erregerkreises praktisch unverändert. The magnetic resistance remains during the rotary movement to be displayed of the excitation circuit practically unchanged.
Ein Beispiel der erfindungsgemäßen Anordnung ist schematisch in der Zeichnung dargestellt. Der erfindungsgemäße Gedankengang wird dadurch erreicht, daß ein Anker I aus unmagnetischem Material mit einer Anzahl eingelegter Eisenpole 2 durch eine Spule 3 erregt wird. Das Feld der Eisenpole 2 schließt sich über Joche 4 und 5, welche in entsprechender Anzahl in einem Stator 8 eingebaut sind, wobei auf die Joche 4 Geberspulen 6 aufgebrachte die Joche 5 jedoch unbewickelt sind. Im Verlaufe der Drehbewegung des Ankers I wird der in den Polen 2 induzierte Gesamtfiuß je nach Stellung des Ankers gespalten und durch die Joche 4 bzw. 5 geschlossen. Dadurch bleibt also der Gesamtfluß praktisch unverändert, so daß Rückwirkungen auf den Erregerkreis vermieden sind. An example of the arrangement according to the invention is shown schematically in FIG Drawing shown. The train of thought according to the invention is achieved by that an armature I made of non-magnetic material with a number of inlaid iron poles 2 is excited by a coil 3. The field of iron poles 2 is closed by yokes 4 and 5, which are installed in a corresponding number in a stator 8, wherein However, the yokes 5 applied to the yokes 4 transmitter coils 6 are not wound. In the course of the rotary movement of the armature I, the total fiow induced in the poles 2 becomes split depending on the position of the armature and closed by yokes 4 or 5. As a result, the total flow remains practically unchanged, so that repercussions on the excitation circuit are avoided.
Die induzierte Spannung in den Spulen 6 verändert sich entsprechend dem von Null bis zum Maximum ansteigenden Feld in den Jochen 4 praktisch proportional mit dem Verdrehungswinkel des Ankers I.The induced voltage in the coils 6 changes accordingly practically proportional to the field in the yokes 4, which increases from zero to the maximum with the twist angle of the armature I.
Wenn die Erregerspule 3 von Wechselstrom durchflossen wird, ergeben sich auch im Stillstand und bei kleinsten Bewegungen des Gebers genau definierte induzierte Spannungswerte in den Spulen 6, welche vom Meßinstrument 7 angezeigt werden.If the excitation coil 3 is traversed by alternating current, result was precisely defined even at a standstill and with the smallest movements of the encoder induced voltage values in the coils 6, which are indicated by the measuring instrument 7 will.
Die Spulen 6 können je nach Bedarf angeordnet und geschaltet werden. Der rotierende Anker erfordert im dargestellten Beispiel k.eine bewegte Wicklung und daher keinerlei Stromzuf.ührungen.The coils 6 can be arranged and switched as required. In the example shown, the rotating armature does not require a moving winding and therefore no power supply.
Die erfindungsgemäße Gebermaschine kann außer für D rehbewegungs an zeige insbesondere für die Anfahrt elektrischer Triebfahrzieuge auch als Stellungsanzeiger verwendet werden, da jede Ankerstellung der Maschine eine bestimmte Größe der abgegebenen Spannung ergibt. Die erfindungsgemäße Maschine kann auch als Drehsinnanzeiger und Synchronanzeiger gebaut und verwendet werden, wobei die Teilung der Pole 2 im Anker 1 gegenüber den Polen 4 und 5 im Stator 8 den gestellten Anforderungen. entsprechend verändert wird. Die erfindungsgemäße Maschine kann auch mit Gleichstrom erregt und zur Geschwindigkeitsanzeige verwendet werden. The encoder machine according to the invention can except for rotary motion display especially for the approach of electric powered vehicles as a position indicator can be used because each armature position of the machine has a certain size of the output Tension results. The machine according to the invention can also be used as a direction indicator and Synchronous indicators are built and used, with the division of poles 2 in the armature 1 compared to the poles 4 and 5 in the stator 8 to meet the requirements. corresponding is changed. The machine according to the invention can also be excited with direct current and can be used to display speed.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA19850A DE951620C (en) | 1954-03-13 | 1954-03-13 | Device or encoder machine for displaying rotary movements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA19850A DE951620C (en) | 1954-03-13 | 1954-03-13 | Device or encoder machine for displaying rotary movements |
Publications (1)
Publication Number | Publication Date |
---|---|
DE951620C true DE951620C (en) | 1956-10-31 |
Family
ID=6924538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA19850A Expired DE951620C (en) | 1954-03-13 | 1954-03-13 | Device or encoder machine for displaying rotary movements |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE951620C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1147875B (en) * | 1958-03-28 | 1963-04-25 | Siemens Ag | Device for the transmission of values represented as electrical alternating voltages or currents between two bodies rotating relative to one another |
DE2230353A1 (en) * | 1971-12-17 | 1973-06-28 | Roland Graham Whiteing | PROCEDURE FOR TRANSFERRING INFORMATION FROM A MOVING BODY TO A FIXED BODY |
-
1954
- 1954-03-13 DE DEA19850A patent/DE951620C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1147875B (en) * | 1958-03-28 | 1963-04-25 | Siemens Ag | Device for the transmission of values represented as electrical alternating voltages or currents between two bodies rotating relative to one another |
DE2230353A1 (en) * | 1971-12-17 | 1973-06-28 | Roland Graham Whiteing | PROCEDURE FOR TRANSFERRING INFORMATION FROM A MOVING BODY TO A FIXED BODY |
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