The principle of measuring instruments - with the coil

icon

This experiment demonstrates the principle of measuring devices with ferromagnetic vtažným feromafnetickým core.

Educational phase: motivation

 

Required aids+

  • battery
  • stand
  • coil
  • connecting wires
  • ferromagnetic cylinder
  • switch
  • load cells

 

Experiment schema+

Scheme author is Mgr. Karel Stibor

This experiment demonstrates the principle of measuring devices with ferromagnetic vtažným feromafnetickým core.
 

Experiment instructions+

E119_S001 When the switch is open, roll in the highest position, the load cell is not seen no deflection.
E119_S002 When the switch is pulled into the hollow cylinder coil, we pozorvat load cell deflection.
E119_S003 When the switch is open, rolling pin in the top position. Detail of the roller.
E119_S004 When the switch is pulled into the hollow cylinder coil. Detail of the roller.
E119_S005 When the switch is open, roll in the highest position, the load cell is not seen no deflection. Detail of a dynamometer.
E119_S006 When the switch is pulled into the hollow cylinder coil, we pozorvat load cell deflection. Detail of a dynamometer.
 

Explanation+

The principle of these devices is based on the power effect of ferromagnetic core plates located in a magnetic field coil. The hollow cylindrical ferromagnetic core coil pulling hanging on the spring which caused the power steering. This principle is strongly reminiscent of the electromagnet, so these devices sometimes referred to as electromagnetic. Depending on the size of the current core is more or less pulling.
 

Experiment video+

Nemáte povolen JavaScript, avšak pro správný běh stránky je nezbytný.
You do not have JavaScript enabled, but for proper function of website is neccessary.
Máte příliš zastaralý prohlížeč pro přehrání videoukázek
nebo nemáte nainstalován Adobe Flash player !

You have too outdated browser to play video clips
or you do not have Adobe Flash player installed !
 

Application in practice+

Ferromagnetic measuring instruments.
 
Download as HDV videoclip | Download experiment card | Insert to own website |

This experiment has been added 14.4.2012 by Jan Krejčí and since then have 4465 visits.
 
3.6.2014 21:44 © Krejčí Jan
 
.