DE356364C - Device for compensating the temperature error in eddy current tachometers - Google Patents
Device for compensating the temperature error in eddy current tachometersInfo
- Publication number
- DE356364C DE356364C DEW54345D DEW0054345D DE356364C DE 356364 C DE356364 C DE 356364C DE W54345 D DEW54345 D DE W54345D DE W0054345 D DEW0054345 D DE W0054345D DE 356364 C DE356364 C DE 356364C
- Authority
- DE
- Germany
- Prior art keywords
- ring
- eddy current
- temperature error
- compensating
- expansion body
- 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
- 230000000149 penetrating effect Effects 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 208000000260 Warts Diseases 0.000 description 3
- 201000010153 skin papilloma Diseases 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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
- G01P3/49—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents
- G01P3/495—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents where the indicating means responds to forces produced by the eddy currents and the generating magnetic field
- G01P3/4956—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents where the indicating means responds to forces produced by the eddy currents and the generating magnetic field with thermal compensation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnets (AREA)
Description
Einrichtung zum Ausgleich des Temperaturfehlers bei Wirbelstromtachometern. Die Erfindung betrifft eine Einrichtung zum Ausgleich des Temperaturfehlers bei Wirbelstromtachometern, bei welcher der ruhende Teil des magnetischen Satzes mittels eines spiralig geformten Ausdehnungskörpers verstellt wird, und besteht in der im Anspruch gekennzeichneten und nachstehend an Hand eines Ausführungsbeispiels näher erläuterten Vorrichtung.Device for compensating the temperature error in eddy current tachometers. The invention relates to a device for compensating for the temperature error Eddy current tachometers, in which the stationary part of the magnetic set is by means of a spiral-shaped expansion body is adjusted, and consists in the im Claim characterized and in more detail below with reference to an exemplary embodiment explained device.
In der Zeichnung zeigt Abb. i ein Tachometer im senkrechten Schnitt, « Abb. -- dasselbe geöffnet in Draufsicht auf die wesentlichen Teile, und die -,3#bb. 3, 4 und 5 stellen die die Tragarmatur des ruhenden magnetischen Satzteiles bildenden Ringe im Schnitt und in der Draufsicht dar.In the drawing, Fig. I shows a speedometer in vertical section, « Fig. - the same open in plan view of the essential parts, and the -, 3 # bb. 3, 4 and 5 show the rings forming the support armature of the static magnetic sentence part in section and in plan view.
Auf der Welle a ist der Magnet b befestigt. Die Spindel c, auf Spitzen zwischen der Welle a und der Steinschraube d gehalten, trägt den Anker e und den Zeiger f. Die Spiralfeder g zieht die Spindel c in die Anfangslage zurück. Den Polflächen des Magneten b gegenüber liegt, mit Gewinde in der ringförmigen Fassung h gehalten, der scheibenförmige Eisenrückschluß i. Die Fassung It besitzt drei schräge, sich senkrecht nach unten öffnende Nuten hl. und drei Warzen hl. Die Fassung h liegt satt in dem mit drei Tragarmen k' auf dem Apparategehäuse befestiten Ring k, der drei bajonettartige Schlitze kl besitzt, die sich nach oben öffnen. In den senkrechten Teilen dieser Schlitze k2 findet der Ring lt mit den Warzen hl Anschläge und ist damit gegen Verdrehen gesichert. Um den Hals des Ringes k legt sich der mit drei Zapfen 11- und einer Warze 12 versehene Ring 1, wobei die Zapfen 11- die Schlitze k 2 des Ringes k durchdringen und in die schrägen Nutenit' der Fassungh eingreifen. In dem Schlitz der Warze l' greift mit dem Stift m' der spiralig geformte Ausdehnung körper in an, der bei in# festgeschraubt ist. The magnet b is attached to the shaft a. The spindle c, held on points between the shaft a and the stone screw d , carries the armature e and the pointer f. The spiral spring g pulls the spindle c back into the initial position. Opposite the pole faces of the magnet b , the disc-shaped iron yoke i is held by a thread in the annular holder h. The version It has three inclined, vertically downwardly opening grooves hl. and three warts St. The holder h lies snugly in the ring k which is fastened to the apparatus housing with three support arms k 'and which has three bayonet-like slots kl which open upwards. In the vertical parts of these slots k2 the ring lt with the warts hl finds stops and is thus secured against twisting. The ring 1 provided with three pins 11- and a lug 12 lies around the neck of the ring k , the pins 11- penetrating the slots k 2 of the ring k and engaging the inclined grooves of the socket h. In the slot of the wart l 'engages with the pin m' of the spiral-shaped expansion body in, which is screwed tight at in #.
Die Wirkun-Sweise istfolgende: Der Ausdehnungskörper verschiebt bei seinen durch Temperatursch-,vankungen verursachten Längenänderungen den von ihm beeinflußten Ring 1 in der einen oder anderen Richtung Mit dem letzteren verschieben sich auch seine Zapfen h2 in den Schlitzen k2 des Ringes k und den schrägen Nuten hl der Fassung h, wodurch der in der Fassung ruhende Eisenrückschluß je nach der Temperatur mehr oder weniger den. Magnetpolen genähert oder von ihnen entfernt wird.The Wirkun-Sweise istfolgende: The expansion body moves in its through Temperatursch-, vankungen length changes caused to he influenced ring 1 in one or the other direction with the latter shift his pin h2 in the slots k2 of the ring K and the oblique grooves hl of the socket h, whereby the iron back yoke resting in the socket more or less depending on the temperature. Magnetic poles is approached or removed from them.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW54345D DE356364C (en) | Device for compensating the temperature error in eddy current tachometers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW54345D DE356364C (en) | Device for compensating the temperature error in eddy current tachometers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE356364C true DE356364C (en) | 1922-07-20 |
Family
ID=7604876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEW54345D Expired DE356364C (en) | Device for compensating the temperature error in eddy current tachometers |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE356364C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1151136B (en) * | 1958-11-10 | 1963-07-04 | Gen Motors Corp | Speedometer or tachometer |
| WO1998026296A1 (en) * | 1996-12-12 | 1998-06-18 | Mannesmann Vdo Ag | Eddy current measuring arrangement for an indicating instrument |
-
0
- DE DEW54345D patent/DE356364C/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1151136B (en) * | 1958-11-10 | 1963-07-04 | Gen Motors Corp | Speedometer or tachometer |
| WO1998026296A1 (en) * | 1996-12-12 | 1998-06-18 | Mannesmann Vdo Ag | Eddy current measuring arrangement for an indicating instrument |
| DE19651614B4 (en) * | 1996-12-12 | 2005-03-24 | Siemens Ag | Wirbelstrommeßwerk for a pointer instrument |
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