DE8700180U1 - Measurement transmitter - Google Patents
Measurement transmitterInfo
- Publication number
- DE8700180U1 DE8700180U1 DE8700180U DE8700180U DE8700180U1 DE 8700180 U1 DE8700180 U1 DE 8700180U1 DE 8700180 U DE8700180 U DE 8700180U DE 8700180 U DE8700180 U DE 8700180U DE 8700180 U1 DE8700180 U1 DE 8700180U1
- Authority
- DE
- Germany
- Prior art keywords
- measurement
- measurement transmitter
- rotor
- cores
- 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
- 238000005259 measurement Methods 0.000 title claims description 13
- 238000004804 winding Methods 0.000 claims description 16
- 239000002131 composite material Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/04—Arrangements for transmitting signals characterised by the use of a wireless electrical link using magnetically coupled devices
-
- 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
- G01D5/12—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 using electric or magnetic means
- G01D5/14—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 using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/20—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 using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
- G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
- G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
- G01L3/108—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving resistance strain gauges
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
• · I · · t· I · · t
MeßwertubertragerMeasurement transmitter
Die Erfindung bezieht sich auf einen Meßwertübertrager zur Drehmoment- und Drehzahlmessung an umlaufenden Maschinenteilen, mit zwei Wicklungspaaren zur Meßwertübertragung, von denen jeweils paarweise eine am Stator angebrachte Wicklung und eine am Rotor angebrachte Wicklung einander koaxial gegenüberstehen.The invention relates to a measurement transmitter for torque and speed measurement on rotating machine parts, with two pairs of windings for measurement value transmission, of which one winding attached to the stator and one winding attached to the rotor are coaxially opposite each other.
Aus dem DE-GM 85 11 143 ist zur Drehmoment- und Drehzahlmessung an umlaufenden Maschinenteilen eine Meßnabe mit einem Flansch- und einem Nabenteil sowie einem Stator als Sondenträger und als Halter für Übertragungsmittel bekannt, bei der zwei Wicklungspaare zur Meßwertubertragung vorhanden sind, von denen jeweils paarweise eine am Stator und eine am Rotor angebrachte Wicklung einander radial gegenüberstehen, und für die Drehmomentmessung auf dem Nabenteil ein Leiterband mit Dehnmeßstreifen vorgesehen ist.From DE-GM 85 11 143, a measuring hub with a flange and a hub part as well as a stator as a probe carrier and as a holder for transmission means is known for torque and speed measurement on rotating machine parts, in which two pairs of windings are present for the transmission of measured values, of which one winding attached to the stator and one to the rotor are radially opposite each other, and a conductor strip with strain gauges is provided on the hub part for torque measurement.
Die bekannte Vorrichtung hatte den Nachteil, daß mr>n Falbleiterdehnungsmeßstreifen einsetzen mußte, um ein ausreichend großes Ausgangssignal zu erhalten. Verwendet man Ferrite als Wicklungskerne bzw. -träger, besteht der Nachteil hoher Kosten für die Herstellung der Wickelkörper.The known device had the disadvantage that one had to use n strain gauges in order to obtain a sufficiently large output signal. If ferrites are used as winding cores or carriers, there is the disadvantage of high costs for the production of the winding bodies.
Der Erfindung liegt die Aufgabe zugrunde, einen iießwertübartrager der eingangs genannten Art zu schaffen, mit dem es möglich ist, ohne d»vn Einsatz von Verstärkern von auf dem Wellenteil angebrachten Metallfoli.en-Dehnmeßstreifen gelieferte Signale ausreichender Größe zum Stator zu übertragen.The invention is based on the object of creating a flow value transmitter of the type mentioned at the beginning, with which it is possible to transmit signals of sufficient magnitude to the stator, delivered by metal foil strain gauges attached to the shaft part, without the use of amplifiers.
Erfindungsgemäß wird die Aufgabe durch im KennzeichenteilAccording to the invention, the object is achieved by the characterizing part
• · t t t 1· t t t 1
127 DC 24 _ 'a, _ .5, ·..· :127 DC 24 _ 'a, _ .5, ·..· :
des Anspruchs 1 aufgeführte Merkmale gelöst.of claim 1.
Die Erfindung weist gegenüber dem Bekannten die Vorteile auf, daß man für die übertragung der von Dehnmeßstreifen auf dem Wellenteil gelieferten Signale allein mit dem Meßwertübertrager auskommt und keine aktiven Verstärker braucht. Zur Herstellung der Wickelkörper sind ringförmige Rohlinge lieferbar, die auf kostengünstige Weise auf einer Drehmaschine bearbeitet werden können.The invention has the advantage over the known in that the signals provided by strain gauges on the shaft part can be transmitted using only the measurement transmitter and no active amplifiers are required. Ring-shaped blanks are available for the production of the winding bodies and can be machined cost-effectively on a lathe.
Weitere vorteilhafte Ausgestaltungen der Erfindung gehen aus der nachfolgenden Beschreibung und den Ansprüchen hervor.Further advantageous embodiments of the invention will become apparent from the following description and the claims.
Die Erfindung wird an einem Ausfuhrungsbeispiel anhand einer Zeichnung erläutert. Es zeigenThe invention is explained using an exemplary embodiment based on a drawing.
Fig. 1 eine Frontansicht der erfindungsgemäßen Anordnung, bestehend aus feststehenden Statorkernen und auf einem Wellenteil sitzenden Rotorkernen,Fig. 1 is a front view of the arrangement according to the invention, consisting of fixed stator cores and rotor cores sitting on a shaft part,
Fig. 2 einen Schnitt durch die Anordnung gemäß Fig. 1 .Fig. 2 is a section through the arrangement according to Fig. 1 .
Auf einem Wellenteil 5 (Fig. 1, 2) ist ein Rohr 6 angebracht, auf dem Rotorkerne 3, 4 aus weichmagnetischem, metallischem Pulververbundwekstoff sitzen, welche die Spulenkörper für mit dem Wellenteil 5 drehfest verbundene Wicklungen bilden. Den dem Wellenteil 5 zugeordneten Wicklungen radial gegenüberstehende Wicklungen mit Statorkernen 1, 2 dienen der Meßwertübertragung vom Rotor, also dem Wellenteil 5, zum Stator.A tube 6 is attached to a shaft part 5 (Fig. 1, 2), on which rotor cores 3, 4 made of soft magnetic, metallic powder composite material are seated, which form the coil bodies for windings connected in a rotationally fixed manner to the shaft part 5. Windings with stator cores 1, 2 radially opposite the windings assigned to the shaft part 5 serve to transmit measured values from the rotor, i.e. the shaft part 5, to the stator.
Die Meßwerte stammen von auf dem Rotor sitzenden (in der Zeichnung nicht dargestellten) Dehnmeßstreifen und werden von den Wicklungen, die den Statorkernen 1, 2 zugeordnet sind, über Leitungen einem (in der Zeichnung nicht dargestellten) Gerät zur Anzeige bzw. Auswertung derThe measured values come from strain gauges located on the rotor (not shown in the drawing) and are transmitted from the windings assigned to the stator cores 1, 2 via cables to a device (not shown in the drawing) for displaying or evaluating the
127 DE 24 - 4:*·..:.. *..*..,' ' G 87 OO 180.2127 DE 24 - 4:*·..:.. *..*..,' ' G 87 OO 180.2
Meßwerte zugeführt.Measured values are supplied.
Ein Versuchsaufbau des Ausführungsbeispiels wurde mit einer Trägerfrequenz von 5 kHz betrieben. Für die Statorkerne 1, 2 und die Rotorkerne 3, 4 wurde weichmagnetischer, metallischer Pulververbundwerkstoff verwendet, wie ihn die Firma Vakuumschmelze Hanau, D-6450 Hanau, W.-Germany, unter dem Handelsnamen COROVAC anbietet.A test setup of the example was operated with a carrier frequency of 5 kHz. For the stator cores 1, 2 and the rotor cores 3, 4, soft magnetic, metallic powder composite material was used, as offered by the company Vakuumschmelze Hanau, D-6450 Hanau, W.-Germany, under the trade name COROVAC.
Der weichmagnetische, metallische Pulververbundwerkstoff kann in Form ringförmiger Rohlinge bezogen und jeweils durch spanabhebende Verarbeitung seine endgültige Gestalt erhalten.The soft magnetic, metallic powder composite material can be obtained in the form of ring-shaped blanks and given its final shape by machining.
Diese Art der Verarbeitung der angelieferten Rohlinge ist preiswert und liefert eng tolerierte Wicklungskerne.This type of processing of the supplied blanks is inexpensive and delivers winding cores with tight tolerances.
Das auf dem Wellenteil 5 sitzende Rohr 6 ist beim AusfUhrungsbeispiel mit einem Lochkranz 9 oder einer in gleicher Weise wirkenden Verzahnung versehen, die von einem induktiv oder mit einem Halbleiter arbeitenden Geber 10 ZUiD Zweck der Drehzahlmessung in an sich bekannter Weise abgetastet werden.In the exemplary embodiment, the tube 6 sitting on the shaft part 5 is provided with a ring of holes 9 or a toothing that works in the same way, which is scanned by an inductive or semiconductor sensor 10 for the purpose of measuring the speed in a manner known per se.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8700180U DE8700180U1 (en) | 1987-01-03 | 1987-01-03 | Measurement transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8700180U DE8700180U1 (en) | 1987-01-03 | 1987-01-03 | Measurement transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE8700180U1 true DE8700180U1 (en) | 1987-06-25 |
Family
ID=6803347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8700180U Expired DE8700180U1 (en) | 1987-01-03 | 1987-01-03 | Measurement transmitter |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE8700180U1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4033052A1 (en) * | 1990-10-18 | 1992-04-23 | Hottinger Messtechnik Baldwin | Contact free connector system - connects measuring devices with measurement analysers for transmission of measurement signals and power |
| DE4311903A1 (en) * | 1993-04-10 | 1994-10-13 | Audi Ag | Measuring wheel |
| FR3077880A1 (en) * | 2018-02-15 | 2019-08-16 | Continental Automotive France | TORQUE SENSOR INCORPORATING SENSOR WITH ANGULAR POSITION OF A ROTATING ELEMENT |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH489788A (en) * | 1967-09-30 | 1970-04-30 | Siemens Ag | Electrical device for the contactless transfer of measured values from a rotating to a stationary part |
| DE2358750A1 (en) * | 1972-11-27 | 1974-06-20 | Hitachi Ltd | POSITION SENSOR |
| GB1512720A (en) * | 1974-12-28 | 1978-06-01 | Nissan Motor | Engine crank shaft and a rotational movement detector therefor |
| DE2846583C2 (en) * | 1978-10-26 | 1981-10-29 | Nord-Micro Elektronik Feinmechanik AG, 6000 Frankfurt | Device for transmitting measurement signals via a transmitter |
| DE2951148C2 (en) * | 1979-12-19 | 1984-04-19 | Robert Bosch Gmbh, 7000 Stuttgart | Measuring device for an angle of rotation and / or a torque |
| DE3407917A1 (en) * | 1984-03-03 | 1985-09-05 | Vacuumschmelze Gmbh, 6450 Hanau | METHOD FOR MEASURING A MECHANICAL VOLTAGE ON A SHAFT |
| DE3503348C1 (en) * | 1985-02-01 | 1986-06-19 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart | Ferromagnetic multi-shell core for electrical coils |
| US4649758A (en) * | 1984-04-03 | 1987-03-17 | Trw Transportation Electronics Limited | Torque sensing apparatus |
-
1987
- 1987-01-03 DE DE8700180U patent/DE8700180U1/en not_active Expired
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH489788A (en) * | 1967-09-30 | 1970-04-30 | Siemens Ag | Electrical device for the contactless transfer of measured values from a rotating to a stationary part |
| DE2358750A1 (en) * | 1972-11-27 | 1974-06-20 | Hitachi Ltd | POSITION SENSOR |
| GB1512720A (en) * | 1974-12-28 | 1978-06-01 | Nissan Motor | Engine crank shaft and a rotational movement detector therefor |
| DE2846583C2 (en) * | 1978-10-26 | 1981-10-29 | Nord-Micro Elektronik Feinmechanik AG, 6000 Frankfurt | Device for transmitting measurement signals via a transmitter |
| DE2951148C2 (en) * | 1979-12-19 | 1984-04-19 | Robert Bosch Gmbh, 7000 Stuttgart | Measuring device for an angle of rotation and / or a torque |
| DE3407917A1 (en) * | 1984-03-03 | 1985-09-05 | Vacuumschmelze Gmbh, 6450 Hanau | METHOD FOR MEASURING A MECHANICAL VOLTAGE ON A SHAFT |
| US4649758A (en) * | 1984-04-03 | 1987-03-17 | Trw Transportation Electronics Limited | Torque sensing apparatus |
| DE3503348C1 (en) * | 1985-02-01 | 1986-06-19 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart | Ferromagnetic multi-shell core for electrical coils |
Non-Patent Citations (1)
| Title |
|---|
| DE-Z: Werkstatt u. Betrieb, 91. Jg., 1958, H. 3, S. 132 bis 136 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4033052A1 (en) * | 1990-10-18 | 1992-04-23 | Hottinger Messtechnik Baldwin | Contact free connector system - connects measuring devices with measurement analysers for transmission of measurement signals and power |
| DE4311903A1 (en) * | 1993-04-10 | 1994-10-13 | Audi Ag | Measuring wheel |
| US5827956A (en) * | 1993-04-10 | 1998-10-27 | Audi Ag | Force measuring wheel for vehicles |
| FR3077880A1 (en) * | 2018-02-15 | 2019-08-16 | Continental Automotive France | TORQUE SENSOR INCORPORATING SENSOR WITH ANGULAR POSITION OF A ROTATING ELEMENT |
| WO2019158871A1 (en) * | 2018-02-15 | 2019-08-22 | Continental Automotive France | Torque sensor incorporating an angular position sensor of a rotating element |
| CN111699364A (en) * | 2018-02-15 | 2020-09-22 | 法国大陆汽车公司 | Torque sensor integrated with an angular position sensor of a rotating element |
| US11067460B2 (en) | 2018-02-15 | 2021-07-20 | Continental Automotive France | Torque sensor incorporating an angular position sensor of a rotating element |
| CN111699364B (en) * | 2018-02-15 | 2022-03-08 | 法国大陆汽车公司 | Torque sensor integrated with an angular position sensor of a rotating element |
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