DE743787C - Arrangement for determining a speed according to the pulse frequency method - Google Patents

Arrangement for determining a speed according to the pulse frequency method

Info

Publication number
DE743787C
DE743787C DEK162906D DEK0162906D DE743787C DE 743787 C DE743787 C DE 743787C DE K162906 D DEK162906 D DE K162906D DE K0162906 D DEK0162906 D DE K0162906D DE 743787 C DE743787 C DE 743787C
Authority
DE
Germany
Prior art keywords
arrangement
determining
brushes
pulse frequency
speed according
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
Application number
DEK162906D
Other languages
German (de)
Inventor
Dipl-Ing Siegfried Brockhaus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Krupp Stahl AG
Original Assignee
Krupp Stahl AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Krupp Stahl AG filed Critical Krupp Stahl AG
Priority to DEK162906D priority Critical patent/DE743787C/en
Application granted granted Critical
Publication of DE743787C publication Critical patent/DE743787C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42Devices characterised by the use of electric or magnetic means
    • G01P3/44Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/484Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by contact-making switches

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dc Machiner (AREA)

Description

Anordnung zur Bestimmung einer Geschwindigkeit nach dem Impulsfrequenzverfahren Die Erfindung bezieht sich auf Anordnungen zur Bestimmung einer Geschwindigkeit nach dem IMpusfreqeuczerfahren mittels einer Kontaktvorrichtung, die aus einem, mit isolierten Äletallstegen versehenen Kommutator und zwei auf diesem schleifenden Bürsten besteht, Bei bekannten Anrodnungen dieser Art müssen die Isolierstege, da,t eine Strommunterbrechung zustande kommen kann, breiter als die Bürsten sein. Es lassen sich daher auf dem in der Zeiteinheit zurükgelegten Winkelweg des Kommutators nur verhältnismäßig wenilge Isolierstege unterbringen, so daß die Impulsfrequenz oder die auf die Zeiteinheit bezogene Schalthäufigkeit verhältnismäßig klein ausfällt und inan daher, wenn man eine hinreichend große Schalthäufigkeit erzielen will, den Durchmesser des Kommutators unerwünscht groß wählen müßte. Bei der den Gegenstand der Erfindung bildenden Anordnung sind zur Vermidung dieses Nachteils die Metalistege des Kommutators in der bei dynamoelektrischen Maxhinen bekannten Weise durch isolierstege getrennt, deren Bretie geringer als die Breite der Metallstege und der Bürsten ist, und zugleich die Bürsten in solchem Winkelabstand voneinander angeordnet. daß der Abstand ihrer einander gegenüberliegenden Kanten kleiner als die Breite ihrer Metallstege ist.Arrangement for determining a speed according to the pulse frequency method The invention relates to arrangements for determining a speed after driving the pulse frequency by means of a contact device, which consists of a, with isolated metal bars and two sliding commutators Brushing consists, with known anrodings of this type, the insulating bars, since, t a current interruption can come about, be wider than the brushes. It can therefore be based on the angular path of the commutator covered in the unit of time accommodate only relatively few insulating bars, so that the pulse frequency or the switching frequency based on the time unit is relatively small and therefore, if you want to achieve a sufficiently high switching frequency, the diameter of the commutator would have to choose undesirably large. When the subject the arrangement forming the invention are the metal webs to avoid this disadvantage of the commutator in the manner known from dynamo-electric Maxhinen by means of insulating bars separated, the bretie of which is less than the width of the metal bars and the brushes, and at the same time the brushes are arranged at such an angular distance from one another. that the The distance between their opposing edges is smaller than the width of their metal webs is.

Auf der Zeichung ist in einet Stirnansicht auf den Kommutator ein Ausführungsbeispiel der Erfindung erläutert. Die einander gegenüberliegenden Bürstenkanten sind hier etwa um die halbe Breite der metallstege voneinander entfernt. Die Bürsten berühren einmal den gleichen und kurz darauf zwei verschiedene Metallstege, so daß ein über die Bürsten gehender Stromkreis abwechselnd geschlossen und geöffnet wird. Die Bürsten können dabei beliebig breit sein und mehrere Äletallstege bedecken. The drawing shows a front view of the commutator Embodiment of the invention explained. The opposite brush edges are about half the width of the metal bars away from each other. The brushes touch the same metal bar once and shortly afterwards two different metal bars, so that a circuit going over the brushes is alternately closed and opened. The brushes can be of any width and cover several Äletallstege.

Man erhält bei dem beschriebenen Schaltapparat eine hohe Anzahl von Unterbrechungen je Umdrehung. Die Schalthäufigkeit hietet also auch bel kleinen veränderlichen Winkelgeschwindigkeiten ein gutes Maß für die Winkelgeschwindigkeit der Welle. Die AIessung der Schalthäufigkeit kann man unter \~ermittlung von KOndensatoren oder Stoßtransformatoren auf die Älessung eines Stromes oder einer Spannung zruückführen, Um bei einer derartigen Messung leicht eiiieii Ätittelwert des Stromes oder der Spannung bilden zu können, ist ebenfalls eine relativ hohe Schalthäufigkeit erwünscht. You get in the switching apparatus described a large number of Interruptions per revolution. The switching frequency also has a small one variable angular velocities a good measure of the angular velocity the wave. The measurement of the switching frequency can be determined by determining capacitors or tracing impulse transformers back to the measurement of a current or a voltage, In order to easily achieve a mean value of the current or the To be able to generate voltage, a relatively high switching frequency is also desirable.

Die Erfindung kann sinngemäß auch auf das Messen der Geschwindigkeit geradliniger Bewegungen übertragen werden. In diesem Fall ist ein Kommutator mit unendlichem Durchmesser, d. h. natülich nur ein Teil desselben zu verwenden. The invention can analogously also apply to measuring the speed straight movements are transmitted. In this case there is a commutator with infinite diameter, d. H. to use only part of it, of course.

Die beschriebene Anordnung kann außer zum Messen der Geschwindigkeit auch zum Steurern oder Regeln in Abhängigkeit von der geschwindigkeit benutzt werden. Es kann auch eine beliebige andere Größe mit der beschriebenen Anordnung gemessen werden. wenn sie zuvor in eine Winkelgeschwindigkeit umgewenadelt wird. The arrangement described can be used in addition to measuring the speed can also be used to steer or regulate depending on the speed. Any other size can also be measured with the described arrangement will. if it is previously converted to an angular velocity.

Claims (1)

PATENTANSPRUCH : Anordnung zur Bestimmung einer Geschwindigkeit nach dem Impulifrefluenzverfahren mittels einer Kontaktvorrichtung, die aus einem mit silierten Metallstegen versehenen Kommutator und zwei auf diesem schleifenden Bürsten besteht. dadurch gekennzechnet, daß die Metallstege des Kommutators in der bei dynamoelektrischen Maschinen bekannten Weise durch Isolierstege getrennt sind, deren Breite geringer als die Breite e der Metallstege und er Bürsten ist. und die Bürsten in solchem Winkelabstand voncinwander angeordnet sind, daß der Abstand ihrer einander gegenüberliegenden Kanten kleiner als die Breite der Metallstege ist. PATENT CLAIM: Arrangement for determining a speed according to the pulse frequency method by means of a contact device consisting of a ensiled metal bars with a commutator and two brushes that slide on it consists. gekennzechnet characterized in that the metal bars of the commutator in the dynamoelectric Machines known way are separated by insulating bars, the width of which is smaller than the width e of the metal bars and he is brushes. and the brushes in such Angular distance from one another are arranged that the distance between their opposing Edges are smaller than the width of the metal bars.
DEK162906D 1941-11-29 1941-11-29 Arrangement for determining a speed according to the pulse frequency method Expired DE743787C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK162906D DE743787C (en) 1941-11-29 1941-11-29 Arrangement for determining a speed according to the pulse frequency method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK162906D DE743787C (en) 1941-11-29 1941-11-29 Arrangement for determining a speed according to the pulse frequency method

Publications (1)

Publication Number Publication Date
DE743787C true DE743787C (en) 1944-06-17

Family

ID=7254449

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK162906D Expired DE743787C (en) 1941-11-29 1941-11-29 Arrangement for determining a speed according to the pulse frequency method

Country Status (1)

Country Link
DE (1) DE743787C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3425825A1 (en) * 1984-07-13 1986-01-23 Alfred Teves Gmbh, 6000 Frankfurt DEVICE FOR SPEED DETECTION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3425825A1 (en) * 1984-07-13 1986-01-23 Alfred Teves Gmbh, 6000 Frankfurt DEVICE FOR SPEED DETECTION

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