DE846721C - Measuring device for measuring magnetic field strengths - Google Patents
Measuring device for measuring magnetic field strengthsInfo
- Publication number
- DE846721C DE846721C DEG4312A DEG0004312A DE846721C DE 846721 C DE846721 C DE 846721C DE G4312 A DEG4312 A DE G4312A DE G0004312 A DEG0004312 A DE G0004312A DE 846721 C DE846721 C DE 846721C
- Authority
- DE
- Germany
- Prior art keywords
- needles
- magnetic
- measuring
- magnetic field
- field strengths
- 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
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/038—Measuring direction or magnitude of magnetic fields or magnetic flux using permanent magnets, e.g. balances, torsion devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
Die Erfindung hat den Zweck, mit Hilfe eines einfachen Gerätes Feldstärkemessungen von magnetischen Feldstärken durchführen zu können, insbesondere Änderungen des magnetischen Erdfeldes zu Untersuchungen der geologischen Verhältnisse. The invention has the purpose of making field strength measurements with the aid of a simple device to be able to carry out magnetic field strengths, in particular changes in the magnetic earth field to investigate the geological conditions.
Das Gerät besteht in der Hauptsache aus zwei Magnetnadeln, deren Drehpunkte in einer Ebene so angeordnet sind, daß die Nadeln gegeneinander einen Winkel bilden. Die Nadeln besitzen nur einen wirksamen Pol, d. h. ein Pol der Nadel sitzt auf der Drehachse. Zum Gewichtsausgleich ist auf der magnetisch freien Seite der Nadel ein Gegengewicht angebracht. The device mainly consists of two magnetic needles, whose Pivot points are arranged in a plane so that the needles against one another Make angles. The needles have only one effective pole, i.e. H. one pole of the needle sits on the axis of rotation. For weight compensation is on the magnetically free side a counterweight is attached to the needle.
Wird nun das Gerät in einem Magnetfeld so aufgestellt, daß die Zeigerspitzen etwa gleich weit von der Nullmarkierung entfernt sind, so werden die Nadeln einen ganz bestimmten Winkel zueinander einnehmen, dessen Größe auf der Skala abgelesen werden kann. Da der Nadelwinkel eine Funktion der Feldstärken der Nadelspitzen und des sie umgebenden Magnetfeldes ist, wird eine Veränderung des äußeren Magnetfeldes immer eine Veränderung des Nadeltrinkels hervorrufen, die zahlenmäßig abgelesen werden kann. Zur Veränderung der Grundeinstellung der Magnetnadeln und zur Empfindlichkeitsregulierung können kleine Magnete a, b, c (Abb. I) neben den Nadeln angebracht werden. If the device is now set up in a magnetic field so that the pointer tips are about the same distance from the zero mark, the needles become one take a very specific angle to each other, read the size on the scale can be. Since the needle angle is a function of the field strengths of the needle tips and of the surrounding magnetic field, there will be a change in the external magnetic field always cause a change in the needle drink, read the numbers can be. To change the basic setting of the magnetic needles and to regulate the sensitivity small magnets a, b, c (Fig. I) can be attached next to the needles.
Abb. II zeigt ein System gemäß der Erfindung mit Abänderungen von Abb. 1. Hier wird mit dünnen eingeklemmten Magnetstäben zum Messen von größeren Feldstärken gearbeitet. Dieses System kann vorzugsweise für technische Messungen von Polstärken und ähnlichen Magnetfeldern verwandt werden. Fig. II shows a system according to the invention with modifications from Fig. 1. Here, thin, clamped magnetic rods are used to measure larger ones Field strengths worked. This system can be used preferably for technical measurements of pole strengths and similar magnetic fields.
Die beiden Magnete bestehen hier aus zwei gleichen sehr dünnen Magnetstähen oder Folien, die mit den Enden gleicher Polarität fest miteinander verbunden sind, während die freien Enden frei über einer Skala schweben. Wirkt nun ein äußeres Magnetfeld auf dieses System ein, so werden die freien Magnetenden entsprechend der äußeren Feldgröße zusammen- oder auseinalldergezogen. The two magnets here consist of two identical, very thin magnetic rods or foils that are firmly connected to one another with the ends of the same polarity, while the free ends float freely over a scale. An external magnetic field is now active on this system, the free ends of the magnet become corresponding to the outer ones Field size contracted or pulled apart.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG4312A DE846721C (en) | 1950-10-11 | 1950-10-11 | Measuring device for measuring magnetic field strengths |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG4312A DE846721C (en) | 1950-10-11 | 1950-10-11 | Measuring device for measuring magnetic field strengths |
Publications (1)
Publication Number | Publication Date |
---|---|
DE846721C true DE846721C (en) | 1952-08-18 |
Family
ID=7117347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEG4312A Expired DE846721C (en) | 1950-10-11 | 1950-10-11 | Measuring device for measuring magnetic field strengths |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE846721C (en) |
-
1950
- 1950-10-11 DE DEG4312A patent/DE846721C/en not_active Expired
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