WikiVisually
Infinite photos and videos for every Wiki article · Find something interesting to watch in seconds
Presidents Richest US Counties Celebrities Great Museums Wonders of Nature British Monarchs Great Cities Orders and Medals Recovered Treasures Animals Great Artists History by Country Wars and Battles Famous Castles Best Campuses Supercars Sports World Banknotes Kings of France Countries of the World Largest Palaces Tallest Buildings Ancient Marvels Crown Jewels Largest Empires Rare Coins
more top lists
History
Claude Pouillet
Videos
Page
Claude Servais Mathias Pouillet was a French physicist and a professor of physics at the Sorbonne and member of the French Academy of Sciences.
Claude Servais Mathias Pouillet
Claude Servais Mathias Pouillet
Pouillet pyrheliometer, 1863
Pouillet pyrheliometer, 1863
Pouillet Tangent Galvanometer on display at Musée d'histoire des sciences de la Ville de Genève
Pouillet Tangent Galvanometer on display at Musée d'histoire des sciences de la Ville de Genève
Galvanometer
Videos
Page
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. Galvanometers work by deflecting a pointer in response to an electric current flowing through a coil in a constant magnetic field. The mechanism is also used as an actuator in applications such as hard disks.
An early D'Arsonval galvanometer showing magnet and rotating coil
An early D'Arsonval galvanometer showing magnet and rotating coil
Close-up view (rear) of a permanent magnet type moving coil meter
Close-up view (rear) of a permanent magnet type moving coil meter
Closed-loop galvanometer-driven laser scanning mirror
Closed-loop galvanometer-driven laser scanning mirror
A galvanometer mechanism (center part), used in an automatic exposure unit of an 8 mm film camera, together with a photoresistor (seen in the hole on
A galvanometer mechanism (center part), used in an automatic exposure unit of an 8 mm film camera, together with a photoresistor (seen in the hole on top of the leftpart).