• Source: Electromagnetic oscillograph

An electromagnetic oscillograph is an oscillograph which measures variations of electric current by having it go through a magnetic coil. Variations in current induce momentum in the coil, which can be directly measured.
The electromagnetic oscillograph was invented by William Duddell.
Some models utilise a mirror which reflects a beam of light, allowing measurement of minute movements of the coil. Other were fitted with a hand, possibly fitted with a pen to record values.




References






External links


William du Bois Duddell
Electromagnetic oscillograph

Kata Kunci Pencarian:

• Electromagnetic oscillograph
• Dennis Gabor Medal and Prize
• History of the oscilloscope
• Chart recorder
• Frédéric Bremer
• String galvanometer
• Timeline of electrical and electronic engineering
• André Blondel
• Numerical relay
• Galvanometer