DE860381C - Vector knife with built-in series and secondary resistors - Google Patents
Vector knife with built-in series and secondary resistorsInfo
- Publication number
- DE860381C DE860381C DEL3070A DEL0003070A DE860381C DE 860381 C DE860381 C DE 860381C DE L3070 A DEL3070 A DE L3070A DE L0003070 A DEL0003070 A DE L0003070A DE 860381 C DE860381 C DE 860381C
- Authority
- DE
- Germany
- Prior art keywords
- built
- series
- contact time
- vector
- knife
- 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
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/30—Structural combination of electric measuring instruments with basic electronic circuits, e.g. with amplifier
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Description
Vektormesser mit eingebauten Vor- und Nebenwiderständen Unter :dem Namen Vektormesser ist ein universelles Meßgerät für präzise Wedhselstrommessungen aller Art bekanntgeworden. Ein wesentlicher Bestanidteil des Geräts ist ein kleiner meca.-niischer Meß:gleidhriehter, der von einem Synchronmotor angetrieben wird. Seine Kontaktzeit ist von o bis 36o elektrischen Graden einstellbar. Um die Handhabung des Geräts für Strom-und Spannungsmessungen möglichst einfach zu gestalten, sind Vor- und! Nebenwiderstände eingebaut. Bei diesen Widerständent i,st ein Formfaktor von i, i i für die übliche Sinusform der Spannungs- und Stromkurven berücksichtigt undi eingeeicht. Dadurch ist aber :die Verwendung des Vektormessens auf Wechselstrom:mes,sungen beschränkt.Vector knife with built-in series and shunt resistors Below: the Name vector meter is a universal measuring device for precise Wedhsel current measurements became known of all kinds. An essential part of the device is a small one meca.-Niischer Mess: smoothly rotated, which is driven by a synchronous motor. Its contact time is adjustable from 0 to 36o electrical degrees. About the handling of the device for current and voltage measurements are to be designed as simply as possible Before and! Shunt resistors built in. With these resistors there is a form factor of i, i i taken into account for the usual sinusoidal shape of the voltage and current curves undi calibrated. As a result, however: the use of vector measurement on alternating current: mes, sungen limited.
Um das Gerät auch: für präzise Gleichstrommessungen verwenden zu können, wird erfindungsgemäß auf der Skala des Drehspulins,tru:ments, mit dem die Kontaktzeit festgelegt wird, eine Marke für diejenige Kontaktzeit vorgesehen, die es ermöglicht, die [email protected] Vor- und Nebenwiderstände ohne Änderung der Meßbereidhhe statt mit Weohseltstrom mit Gleichstrom zu benutzen: Dadurch wird es auf einfache Weise nur durch Umstellung der Kontaktzeit möglich, die ein, gebauten Vor- und Nebenwiderstände mit den gleichen Meßbereichen wie bei Wechselstrom auch bei G1eiehstrom @benutven zu können. Dazu ist eine Kontaktzeit von notwendig. Der Faktor i, i r ist, wie schon oben erwähnt, der Formfaktor dier Sinuswelle und muß bei Gleichstrommessungen durch entsprechende Verringerung der Kontaktzeit rückgängig gemacht werden. Auf diese Weise gelingt es, aus dem Vektormesser einniver@ahgerät für präzise Gleich- und, WechGelstrommessungen, zu machen.In order to also be able to use the device for precise direct current measurements, a mark for the contact time is provided on the scale of the rotating coil, tru: ments with which the contact time is determined, Using shunt resistors without changing the measuring range instead of Weohseltstrom with direct current: This makes it possible to use the built-in series resistors and shunt resistors with the same measuring ranges as with alternating current also with direct current by simply changing the contact time. There is also a contact time of necessary. As mentioned above, the factor i, ir is the form factor of the sine wave and must be reversed in the case of direct current measurements by reducing the contact time accordingly. In this way it is possible to turn the vector knife into a level device for precise direct and alternating current measurements.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL3070A DE860381C (en) | 1950-07-14 | 1950-07-14 | Vector knife with built-in series and secondary resistors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL3070A DE860381C (en) | 1950-07-14 | 1950-07-14 | Vector knife with built-in series and secondary resistors |
Publications (1)
Publication Number | Publication Date |
---|---|
DE860381C true DE860381C (en) | 1952-12-22 |
Family
ID=7256033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL3070A Expired DE860381C (en) | 1950-07-14 | 1950-07-14 | Vector knife with built-in series and secondary resistors |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE860381C (en) |
-
1950
- 1950-07-14 DE DEL3070A patent/DE860381C/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0288671A3 (en) | Measuring apparatus | |
DE860381C (en) | Vector knife with built-in series and secondary resistors | |
DE2325055B2 (en) | Device for digitally measuring the electrical conductivity of conductive liquids | |
DE842968C (en) | Arrangement for the optional measurement of alternating or direct voltages or currents | |
DE389577C (en) | Direct-reading slip meter | |
DE564392C (en) | Electric water level indicator and controller, in which the fluid resistance, which changes with the immersion depth of the electrodes, is used for display | |
AT126540B (en) | Device for the electrical display of variables which are dependent on at least two measured variables, in particular for measuring the quantity of flowing means. | |
DE469496C (en) | Device for the electrical adjustment of a variable depending on several variables, for example an amount of steam | |
DE568153C (en) | Arrangement for the alternating display or registration of two groups of measured values, one of which is caused by electrical resistances, the other by electromotive forces, e.g. B. of thermocouples, is shown | |
DE720852C (en) | Watt-hour counter | |
DE459426C (en) | Device for precise measurement or control of a frequency or number of revolutions | |
DE889474C (en) | Method for measuring electrical quantities | |
DE378326C (en) | Device for the determination and registration of the concentration, the contamination, etc. Like. Of electrolytically conductive fluids by means of Wheatstone Bridge | |
DE484041C (en) | Wattmeter arrangement in dynamo machines | |
DE959388C (en) | Device for measuring operating alternating voltages and currents in amplifier systems | |
DE873425C (en) | Measuring device for determining the distortion caused by higher harmonics in an alternating voltage with a bridge circuit | |
DE514103C (en) | Measuring device for practically simultaneous measurement of active and reactive power | |
DE933459C (en) | Measuring transducer testing device based on the differential method | |
DE612637C (en) | Device for measuring the temperature of the surface layer of calender rolls | |
DE503932C (en) | Ferromagnetic instrument with fixed excitation coils attached to a laminated, self-contained, ring-shaped iron core | |
DE412287C (en) | Device for measuring an average value for multi-phase alternating current from the currents, voltages or powers of the individual phases | |
DE933769C (en) | Arrangement for determining the electrical power of a short wave or ultra short wave generator | |
DE336066C (en) | Slip knife | |
DE638812C (en) | Device for measuring the power factor, in which both the voltage and the current are kept constant by means of constant holding devices | |
SU112773A1 (en) | A device for measuring the ratio of two electrically determined values |