DE448836C - Device for displaying the radial position of a rotating part by means of wires in a Wheatstone bridge circuit, surrounded by metal walls, which are more or less covered by a disc moving over them - Google Patents
Device for displaying the radial position of a rotating part by means of wires in a Wheatstone bridge circuit, surrounded by metal walls, which are more or less covered by a disc moving over themInfo
- Publication number
- DE448836C DE448836C DEH105057D DEH0105057D DE448836C DE 448836 C DE448836 C DE 448836C DE H105057 D DEH105057 D DE H105057D DE H0105057 D DEH0105057 D DE H0105057D DE 448836 C DE448836 C DE 448836C
- Authority
- DE
- Germany
- Prior art keywords
- wires
- displaying
- bridge circuit
- radial position
- surrounded
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K24/00—Machines adapted for the instantaneous transmission or reception of the angular displacement of rotating parts, e.g. synchro, selsyn
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
Vorrichtung zum Anzeigen der radialen Lage eines sich drehenden Teils mittels in einer Wheatstone'schen Brückenschaltung liegender, von Metallwänden umgebener Drähte, die durch eine über ihnen bewegte Scheibe mehr oder weniger abgedeckt werden. Die Erfindung bezieht sich auf eine Vorrichtung zum Messen von Richtungen oder Abweichungen aus einer horizontalen Lage, insbesondere zur Bestimmung der Abweichung einer KompaBnadel mittels mehrerer stromerwärmter Drähte in einer Brückenschaltung, bei welcher Widerstandsänderungen in der Brückenanordnung nur dann hervorgerufen werden können, wenn eine über der Brückenanordnung angebrachte und mit einem geeigneten Ausschnitt versehene Scheibe aus beliebigem Material ihre Richtung in horizontaler Lage ändert, während alle Abweichungen aus der vertikalen. Richtung ausgeschaltet sind.Device for indicating the radial position of a rotating part by means of a Wheatstone bridge circuit surrounded by metal walls Wires that are more or less covered by a disc moving over them. The invention relates to a device for measuring directions or deviations from a horizontal position, in particular to determine the deviation of a compass needle by means of several current-heated wires in a bridge circuit, in which resistance changes in the bridge arrangement can only be caused if one is above the Bridge arrangement attached and with a suitable cutout provided disc made of any material changes its direction in the horizontal position, while all deviations from the vertical. Direction are off.
Anordnungen zur Änderung der Wärmeleitfähigkeit und hierdurch zur Widerstands= änderung stromerwärmter Drähte bei Änderung ihrer Lage sind an und für sich bekannt, jedoch haben diese Apparate den Nachteil, daß nicht nur die Anzeige der Winkelabweichnug der zu messenden Ebenen, sondern auch die Neigungsänderungen des Apparates selbst in dieser Ebene mit angezeigt werden, was zu Fehlern Anlaß gibt.Arrangements for changing the thermal conductivity and thereby for Resistance = change of current heated wires when changing their position are on and known per se, but these devices have the disadvantage that not only the display the angular deviation of the planes to be measured, but also the changes in inclination of the apparatus itself are displayed at this level, which gives rise to errors gives.
Bei der-vorliegenden Anordnung wird die Einwirkung der Wärmestrahlung eines Brückenzweiges auf einen zweiten Brückenzweig bei Lagenänderurngen aus der horizontalen Richtung dadurch gehindert, daß jeder Brückenzweig in einem oben offenen metallischen Gehäuse eingebaut ist, wodurch die Einwirkung der Wärmestrahlung des einen auf den anderen Brückenzweig bei Lagenänderungen aus horizontalen in die vertikale Richtung ausgeschlossen ist, so daß eine Änderung der Wärmestrahlung und eine hierdurch hervorgerufene Widerstandsänderung der Brückenzweige nur durch den Abschnitt der mit dem sich in horizontaler Richtung drehenden Körper verbundenen Scheibe, welche über die in den Metallkästen angeordneten Brückendrähte gleitet, hervorgerufen werden.In the present arrangement, the effect of thermal radiation one branch of the bridge to a second branch of the bridge at Lagenänderurngen from the horizontal direction prevented by each bridge branch in an open top metallic housing is built in, whereby the action of the thermal radiation of the one to the other branch of the bridge when the position changes from horizontal to vertical Direction is excluded, so that a change in thermal radiation and a thereby induced change in resistance of the bridge branches only through the section of the connected to the body rotating in the horizontal direction, which slides over the bridge wires arranged in the metal boxes.
Auf den Zeichnungen ist in Abb. i, 2, 3, 4 und 5 eine derartige Anordnung zur Übertragung der Richtung einer Kompaßnadel schematisch dargestellt.Such an arrangement is shown in FIGS. 1, 2, 3, 4 and 5 of the drawings for transmitting the direction of a compass needle shown schematically.
Abb. r der Zeichnung zeigt das Schaltungsschema der Anordnung, in welcher i und 3 sowie 2 und 4 die zu beeinflussenden Heizzweige einer Brückenanordnung darstellen.Fig.r of the drawing shows the circuit diagram of the arrangement in which i and 3 as well as 2 and 4 are the heating branches to be influenced in a bridge arrangement represent.
Abb.2 der Zeichnung zeigt die Heizdrähte i, 3 und 2, 4 in ihren Metallgehäusen nebst der drehbaren Scheibe von oben aus angesehen.Fig.2 of the drawing shows the heating wires i, 3 and 2, 4 in their metal housings together with the rotating disk viewed from above.
Abb.3 zeigt die Anordnung der Heizdrähte i , 3 und 2, 4 in geschlossenen Metallgehäusen 5, wobei die Heizdrähte 1"3 und 2, 4 noch durch eine metallische Wand 6 voneinander getrennt sind. 7 ist eine mit der Nadel verbundene drehbare Scheibe aus dünnem Glimmer o. dgl. mit einem Ausschnitt B.Fig.3 shows the arrangement of the heating wires i, 3 and 2, 4 in closed Metal housings 5, where the heating wires 1 "3 and 2, 4 are still through a metallic Wall 6 are separated from each other. 7 is a rotatable disc connected to the needle made of thin mica or the like with a cutout B.
Abb. 4 und 5 zeigt schematisch die Anordnung in einem Kompaßgehäuse.Fig. 4 and 5 shows schematically the arrangement in a compass housing.
Die Wirkungsweise der Anordnung ist folgende: Die Brückenzweige i, 2, 3, 4, die alle gleichen Widerstand und gleichen Temperaturkoeffizienten besitzen, werden durch den Strom eines Akkumulators auf eine bestimmte Temperatur erwärmt. Ein in die Brückenanordnung eingeschaltetes Nullinstrument -(Galvanometer) zeigt auf Null, wenn die über den Heizdrähten i bis 4 angebrachte, mit einem passenden Ausschnitt versehene Scheibe 7 -die in den Metallkästen 5 untergebrachten Heizwiderstände 14 vollständig verdeckt. Ändert die Nadel und damit die Scheibe 7 ihre Stellung, so wird je nach dem Ausschlag ein Teil der Brückenanordnung i, 3 oder 2, 4 freigelegt und je nach der Freilegung der Widerstand der Brückenzweige i, 3 bzw. 2, 4 geändert. Seitliche Schwankungen des Gehäuses haben jedoch keinen Einfluß auf das Meßresultat, da die gegenseitige Beeinflussung der Brückenzweige i, 3 und 2, 4 durch die metallische Wand 6 (Abb. 3 und 4) aufgehoben ist.The mode of operation of the arrangement is as follows: The bridge branches i, 2, 3, 4, all of which have the same resistance and temperature coefficient, are heated to a certain temperature by the current of an accumulator. A null instrument - (galvanometer) switched into the bridge arrangement shows to zero, if the one attached over the heating wires i to 4, with a suitable one Disc 7 provided with a cutout - the heating resistors housed in the metal boxes 5 14 completely covered. If the needle and thus the disc 7 changes their position, so, depending on the deflection, a part of the bridge arrangement i, 3 or 2, 4 is exposed and depending on the exposure, the resistance of the bridge branches i, 3 or 2, 4 changed. However, lateral fluctuations in the housing have no influence on the measurement result, because the mutual influence of the bridge arms i, 3 and 2, 4 by the metallic Wall 6 (Fig. 3 and 4) is canceled.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH105057D DE448836C (en) | 1926-01-13 | 1926-01-13 | Device for displaying the radial position of a rotating part by means of wires in a Wheatstone bridge circuit, surrounded by metal walls, which are more or less covered by a disc moving over them |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH105057D DE448836C (en) | 1926-01-13 | 1926-01-13 | Device for displaying the radial position of a rotating part by means of wires in a Wheatstone bridge circuit, surrounded by metal walls, which are more or less covered by a disc moving over them |
Publications (1)
Publication Number | Publication Date |
---|---|
DE448836C true DE448836C (en) | 1927-08-30 |
Family
ID=7169677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH105057D Expired DE448836C (en) | 1926-01-13 | 1926-01-13 | Device for displaying the radial position of a rotating part by means of wires in a Wheatstone bridge circuit, surrounded by metal walls, which are more or less covered by a disc moving over them |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE448836C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2456619A (en) * | 1943-01-19 | 1948-12-21 | Sperry Corp | Gyroscopic controlling means |
US2496339A (en) * | 1945-11-15 | 1950-02-07 | Liquidometer Corp | Wind direction indicator |
US2549209A (en) * | 1948-06-26 | 1951-04-17 | Honeywell Regulator Co | Control apparatus |
US4041371A (en) * | 1974-05-15 | 1977-08-09 | Siemens Aktiengesellschaft | Arrangement for the generation of electrical signals by means of magnetic field-dependent semiconductor components |
-
1926
- 1926-01-13 DE DEH105057D patent/DE448836C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2456619A (en) * | 1943-01-19 | 1948-12-21 | Sperry Corp | Gyroscopic controlling means |
US2496339A (en) * | 1945-11-15 | 1950-02-07 | Liquidometer Corp | Wind direction indicator |
US2549209A (en) * | 1948-06-26 | 1951-04-17 | Honeywell Regulator Co | Control apparatus |
US4041371A (en) * | 1974-05-15 | 1977-08-09 | Siemens Aktiengesellschaft | Arrangement for the generation of electrical signals by means of magnetic field-dependent semiconductor components |
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