Galvanometer
Query URLs
https://term.museum-digital.de/md-de/tag/108850
- Note
- "A galvanometer is an electromechanical measuring instrument for electric current. Early galvanometers were uncalibrated, but improved versions, called ammeters, were calibrated and could measure the flow of current more precisely.
A galvanometer works by deflecting a pointer in response to an electric current flowing through a coil in a constant magnetic field. Galvanometers can be thought of as a kind of actuator.
Galvanometers came from the observation, first noted by Hans Christian Ørsted in 1820, that a magnetic compass´s needle deflects when near a wire having electric current. They were the first instruments used to detect and measure small amounts of current. André-Marie Ampère, who gave mathematical expression to Ørsted´s discovery, named the instrument after the Italian electricity researcher Luigi Galvani, who in 1791 discovered the principle of the frog galvanoscope – that electric current would make the legs of a dead frog jerk." - (en.wikipedia.org 13.02.2022)
-
Strommessgerät (Galvanometer) / Kabelmesskoffer; Prüfkoffer
Ein Kabelmesskoffer mit...
Object information
Image: Industriemuseum Chemnitz; Fotografin: Marion Kaiser - CC BY-NC-SA -
Millivoltmeter für Temperatur-Messungen
Das Messgerät besteht aus...
Object information
Image: Werra-Kalibergbau-Museum, Heringen/W. - CC BY-NC-SA -
Spiegelgalvanometer mit Bandaufhängung
Spiegelgalvanometer dienen...
Object information
Image: Werra-Kalibergbau-Museum, Heringen/W. - CC BY-NC-SA -
Drehspulmesswerk für Temperaturmessung
Dieses Messgerät kann für...
Object information
Image: Werra-Kalibergbau-Museum, Heringen/W. - CC BY-NC-SA -
Drehspulmesswerk für Temperaturmessung
Dieses Messgerät dient der...
Object information
Image: Werra-Kalibergbau-Museum, Heringen/W. - CC BY-NC-SA
[]