Eddy Current Slots

1. Eddy Current Slots Games
2. Eddy Current Slots Jackpot
3. Eddy Current Loss Pdf
4. Eddy Current Slots Poker

Eddy current is defined as the induced current on the surface of conductor in little loops or eddies due to changing magnetic flux. To better understand the concept of eddy current, let us take an example. Suppose a metallic plate is rotated in the magnetic field as shown in figure below. Lets us draw an imaginary loop on the surface of plate. Eddy currents in large slot-wound conductors Abstract: The object of the present paper is the discussion of the more important causes of eddy currents in heavy conductors carrying alternating currents and surrounded on three sides by iron.

Eddy Current Slots Games

Eddy currents

• Eddy currents are induced currents in the body of conductor when subjected to changing magnetic flux.
• They are also known as Foucault current after the name of the scientist Foucault.
• They are known as eddy currents as they are in the pattern of eddiesin the water.
• Consider an electromagnet when attached to battery because of the current magnetic field will be produced which will induce current in the metallic plate.
• The current will be in the form of eddies.
• The metallic plate will be slightly drifted in the air because of eddy currents.
• Mathematically :-
  • i=(induced emf)/(Resistance of the conductor)
  • =(e/R)
  • e= -(dΦ/dt)
  • Therefore i=-(dΦ/dt)/R
• The magnitude and direction will be same as the induced current in the case of electromagnet induction.

EDM Slot Sizing Block, 7075-T6 Aluminum This block contains nine EDM slots from 0.100' to 0.900' deep. Slot width is 0.011'. Nominal depth is laser engraved on the side of the block. Eddy current through the material having resistance will develop heat in the conductor and losses will be maximum, Hence eddy current is undesirable. So for minimising the such current cores are laminated and slotted. Eddy currents through Slots and laminations intercepts each other resulting the decrease of the losses by the eddy current. Eddy currents and magnetic drag. The eddy currents in the sheet of copper can be minimized by interrupting their path. A series of slots, or rectangular holes, in the copper sheet does the job very effectively (Figure 34.33). The slots interrupt possible current paths, and thus increase the resistance.

Ripples in water

Examples of Eddy currents

• Metal plate: In absence of magnetic field: No damping
  • Consider a metal plate which is suspended freely with the help of thread.
  • As there is no magnetic field the plate will keep on oscillating without damping.
• Metal plate: In presence of magnetic field: Damping exists
  • If the magnetic field is present it oscillates but it stops after some time because of damping.
  • As the plate keep on entering the magnetic plate and coming out of it.
  • When it enters the region of magnetic field there is increase in area. As a result flux changes.
  • As flux changes there is induced current.The direction of the induced current will be opposite to itsmean position.
  • When the induced current leaves the magnetic field, again current will be induced but in the opposite direction.
  • This effect of induced currents together gives the effect of eddy currents.
  • Because of induced current the motion is dampedas they are opposing the motion of the plate.
• Metal plate with slots: In presence of magnetic field: Damping reduced
  • When the plate oscillates the damping is reduced as there is lesser area.
  • The eddy currents are less as a result damping is reduced.
  • Eddy currents willoppose the motion of the plate and as they are reduced so there the damping is reduced.
• Conclusion:-
• Eddy currents always have the tendency to oppose the relative motion.
• They are same eddies in the water because as the movement continues and currents also keep changing their direction depending on the change in flux.
• Therefore they look like eddies in the water.
• Eddy currents also cause damping as they oppose motion.

Eddy currents are generated in the copper plate,while enteringand leaving the region ofmagnetic field.

Cutting slots in the copper plate reducesthe effect of eddy currents.

Share these Notes with your friends

You can check our 5-step learning process

• We produce and distribute Eddy Current Test Instruments and Systems for the North/South American and Global NDT market.

• For more than 40 years we have been developing, producing and marketing eddy current instruments and systems for testing that are in use around the world today in crack, heat-treatment, positive material identification, and grinding burn tests. Testing solutions for every problem and every need. Made in the USA and Germany.

• Custom solutions based on research and innovation. Close collaboration with leading labs, technology partners and in fields of applied research make it possible to develop a completely new generation of testing instruments. We use the latest components, specially developed materials, and systematically developed technologies. ROHMANN is a supplier of the most advanced and powerful testing instruments and systems currently to be found on the market.

• How can we help you? We will be glad to assist you with any specific questions you may have. Simply contact us and make use of our search system or inquiry form.

Eddy Current Slots Jackpot

Products News:

ELOTEST PL600 – The most avanced Eddy Current Test Instument

• Maximum stability with unsurpassed signal purity for best results with classical eddy current and harmonic analysis
• Suitable for all types of eddy current testing: Crack, heat treatment, material mix-up and grinding burn testing
• Maximum test reliability through comprehensive system and sensor monitoring
• Application-specific user interfaces for simplest operation
• Full integration through extensive I/O functions with fieldbus connection
• Modular design allows flexible expansion with easy maintenance

Products News:

ELOTEST PL600 – R/RC

Precise material sorting and high-resolution crack and grinding burn inspection

ELOTEST PL600/Remote, 19“/4HE

ELOTEST PL600/Remote Compact, 19“½/4HE

The innovative, fully digital eddy current platform for integration into automated systems

Eddy Current Loss Pdf

• Used with PC software under Windows or Linux or with HDMI+USB connected touch display or standard display with mouse
• Including one universal test channel module with basic license
• PL600/R, fullsize 19” rack with 15 free slots for additional modules
• PL600/RC, half size 19” rack with 6 free slots for additional modules

Eddy Current Slots Poker

Download the PL600 R+RC_2020 Fact Sheet (08-17-2020)